POWER INTEGRATIONS: Power Revolution - RUBYCON's latest strokes of genius STOCKO's ECO-TRONIC News
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ENGLISH
2/2016
Visit us @
.507
booth A5
POWER INTEGRATIONS: Power Revolution
RUBYCON's latest strokes of genius
STOCKO's ECO-TRONIC News
IMPULSE |CONTENTS
CONTENTS
24 | POWER INTEGRATIONS:
Power Revolution
When we look at the available
switching power topologies there
are many types that have evolved to
suit specific requirements like higher
power, improved efficiency, lower
cost or reduced size but few can
be considered revolutionary. The
©Sergey Nivens & Germán Ariel Berra - Fotolia.com
InnoSwitch™ family of power swit-
ching ICs from Power Integrations
combine new technical innovations
in power semiconductors that will
revolutionise power supply design.
ACTIVE COMPONENTS CONNECTORS
04 | The Next Big Thing Is Smaller: 45 | DINKLE: Anti-Vibration Terminal
Introducing the DIGI ConnectCore® Block with push in design
for i.MX6UL 46 | Customer-specific assemblies
05 | DIGI XBee® S2C 802.15.4 – 48 | Waterproof´s from HIROSE
Let Your Imagination Run Wireless! 48 | HIROSE: Storage Batteries
06 | QUALCOMM: The new hostless 49 | HIROSEs Robust Connectors
Wi-Fi solutions for IoT applications 50 | BM Series from HIROSE
09 | QUECTEL: World's smallest COMBO 51 | YAMAICHI: Clarity in the USB Jungle
module GSM/GNSS/Bluetooth 3.0 52 | STOCKO: ECO-TRONIC news
10 | 3 Watt DC/DC converter series PASSIVE COMPONENTS 53 | AMPHENOL FCI: BarKlip®
from RECOM 54 | AMPHENOL Industrial's »HS-LOK«
10 | RECOM: Make the 30 | RUBYCON's latest strokes of genius 54 | AMPHENOL Industrial's ePower-Lite
transformer history! 31 | 3.500 RUBYCON Capacitors in the 55 | Connect your World with SPEEDTECH
11 | Just too cool: WLC series by EOS CODICO Sample Shop 55 | YAMAICHI: The new S series
11 | RECOM´s isolated 20W DC/DC 32 | Smart Home:
converter, the RP20-FR series From vision to reality CODICO IN-HOUSE
12 | Safe isn’t always safe: Electrical 36 | THINKING: Protective
safety in medical technology components for e-vehicle 03 | An Adventure – the ISO Review
14 | TRINAMIC: 3-phase Motor Drive 38 | ISABELLENHÜTTE: 28 | Electronica 2016 Calendar
as Intelligent Microsystem Reading between the lines 56 | UEFA European Championship 2016
16 | ADATIS: New Powerline modules 41 | Supercap, Goldcap, PowerStor 57 | CODICO – the Fastest Distributor
18 | SILVERTELs miniatur POE-world and EDLC 57 | CODICO honours best suppliers
20 | Low Quiescent Current 36V 42 | KDS: MEMS Oscillator for with »Supplier Awards«
Industrial Solutions from TOREX your new solution 58 | Our CODICO Team
22 | MPS: Contactless Angle Sensing In 43 | CODICO's new partner:
Rotary Switch Applications EATON Corporation
24 | POWER INTEGRATIONS 44 | Power factor correction chokes IMPRINT: Issued by CODICO GmbH
Zwingenstraße 6-8, A-2380 Perchtoldsdorf
Power Supply Revolution from SUMIDA Design: www.rittbergerknapp.com | date of issue 02-15102016
2 | 2016:2
EDITORIAL | IMPULSE
An Adventure - Editorial
the ISO Review
Since May 2016 CODICO has been Dear readers,
certified in accordance with ISO See you on Planet e!
9001:2015 at its locations in Austria,
Germany, Italy, and Sweden!
T
he electronics industry is one of the world's
major economic sectors, with a total market
T
he framework conditions of the business volume of 3.5 trillion Euros. Its components, sy-
world are becoming increasingly more dyna- stems, and applications are driving new develop-
mic and complex, while at the same time it is im- ments and they have become an indispensable
portant to formulate the QM system to be really part of our everyday life.
user-friendly. The review for the ISO 9001:2015
Standard provided the opportunity to give the On Planet e, also known as electronica, the indu-
management systems a thorough make-over, stry's leading trade fair staged in Munich from
and it was a challenge we were glad to take on! 8 to 11 November 2016, you can gain an insight
»Quality Austria«, our partner of many years stan- into this entire world of electronics. Of course,
ding, audited CODICO in May 2016 on the basis we will also be present at the fair, so don't miss
of the new requirements, and gave us the green the opportunity to visit us at stand 507 in hall A5.
light for certification for the locations.
Sven Krumpel CODICO will be presenting the latest technologi-
• Our processes are clearly defined and aligned CEO CODICO cal innovations, and our staff will be happy to
with the corporate strategy. share its know-how with you in a personal mee-
• We are aware of the risks and opportunities, ting. We will also provide catering to help you
and we assess them regularly. through the exhausting fair day, and a game for
• Process orientation, process performance, and some welcome distraction. Our forklift derby will
Visit us @
the effectiveness of the processes themselves be the artistic highlight of your day, though you
are ever more closely taken into account. will need a lot of skill to win this one.
7
We are well equipped to face the challenges of boo th A5.50 You will find the names of the colleagues present
the future; and we look forward to be successful at the fair in the middle part of this newsletter,
together with you. Find our current certificates so you can arrange a meeting right away. We are
on our Homepage or feel free to ask for them looking forward to your visit and the opportunity
personally from CODICO won to pass on our expertise.
D01 the »Distributor
uPetra Huynh, +43 1 86305 169 of the Year Speaking of expertise... it is my honour to an-
petra.huynh@codico.com 2016« award. nounce that, for the first time in the ten year his-
tory of the reader's choice at the WEKA publi-
shing house, CODICO won the »Distributor of the
Bild: ©Horacio Canals / Elektronik
Year« award. The readers of the WEKA trade jour-
nals (in particular Markt & Technik, Elektronik and
elektroniknet.de) also voted our company se-
cond best in the »embedded« category! Recei-
ving an award that reflects customer opinion and
experience means a lot to me. I am unbelievably
proud of our company and our team!
D02
uSven Krumpel
CODICO achieved the
second place in the
category »embedded« PS: Get a free entry voucher for a one-day ticket
regarding the criteria of
product availability to electronica 2016! Send your request to
of volumes.
marketing@codico.com!
2016:2 | 3
IMPULSE | ACTIVE COMPONENTS
THE NEXT BIG i.MX6UL Development-Kit
THING IS SMALLER i.MX6UL Starter-Kit
DIGI ConnectCore® for i.MX6UL
DIGI is excited to announce the smallest and most secure i.MX6UL
system-on-module available on the market today.
i.MX6UL SBC-board
T
he DIGI ConnectCore® for i.MX6UL packs a lot electrical engineering. For many OEMs, building
into this stamp-sized module (29x29x3.5mm): complex connected devices from the ground up
is not a core competency. Furthermore, fast
• NXP i.MX6UL-2, Cortex-A7 @528MHz processor changing market requirements, global competi-
• Up to 2GB NAND Flash tive pressures, and ever-changing technology
• Pre-certified for 802.11a/b/g/n/ac and regulatory requirements make partnering
• Bluetooth 4.2 with proven SoM manufacture like DIGI, a neces-
• Integrated dual-Ethernet 10/100 sity. Whether it’s a medical device or a mission-
• Dedicated security and authentication controller critical industrial controller, DIGI has the experti-
• Unique low-power and wake-up se to get you to market quickly.
state management
Once you’ve connected a device to the Internet – DIGI ConnectCore for i.MX6UL delivers the smal-
System-on-modules, or SoMs, are an affordable you have to make sure it secured. The DIGI Con- lest, smartest, most secure way to connect your
way for OEMs to quickly enable their products nectCore for i.MX6UL was built with DIGI Trust- product to the Internet of Things. Check out
to be smarter and connect to the Internet of Fence™, a security framework that removes the www.digi.com/cc6ul to learn more.
Things. SoMs deliver the I/O, memory, and wire- implementation barriers by providing you with A01
less connectivity necessary to connect a product a fully integrated, secure module platform with u Joachim Strohschenk, +49 89 130143817
to the IoT without having to become experts in complete Linux software support. joachim.strohschenk@codico.com
4 | 2016:2
ACTIVE COMPONENTS | IMPULSE
LET YOUR
IMAGINATION
RUN WIRELESS!
©Jakub Jirsák - Fotolia.com
APPLICATION EXAMPLE
Ethernet
REMOTE MONITORING & DEVICE CLOUD
CONTROL OFFICE
XBee® S2C 802.15.4 Module Cellular/VPN
CONNECTPORT®
X4 H GATEWAY
®
XBEE 802.15.4
RF MODULE
Street
DIGI XBee® is the world’s #1 RF module because our common Light
footprint is shared across protocols and frequencies. Light & Occupancy
Sensor with
XBee® 802.15.4
Street RF Module
New DIGI XBee S2C 802.15.4
A
nything is possible with DIGI XBee – from Light
the small science project in the lab to NASA Offered in Through-Hole & SMT
monitoring payloads on a rocket, DIGI XBee gives Form Factors
you the tools and flexibility you need to rapidly Anyone deploying DIGI XBee can swap one DIGI sors, DIGI XBee 802.15.4 modules maximize per-
innovate. The latest example in this broad line XBee for another. You don’t have to design a prin- formance and ease of development.
of modules is the DIGI XBee S2C 802.15.4 which ted circuit board to take advantage of Silicon
is now available with the Silicon Labs Ember® Labs’ latest chip – DIGI has done it for you on the DIGI XBee is a special product because of our
EM35x transceiver. DIGI XBee platform saving you time and giving customers: the innovators, the hackers, the pro-
you the confidence to get connected quickly and blem-solvers — whatever you call yourself, DIGI
This latest module is ideal for applications requi- easily. Providing quick, robust communication in is dedicated to providing you with everything
ring low latency and predictable communication point-to-point, peer-to-peer, and multipoint/star you need to quickly create wireless connectivity
timing. The DIGI XBee S2C 802.15.4 is also ideal configurations, DIGI XBee S2C 802.15.4 products solutions. Let your imagination run wireless!
when your application requires robust multipoint enable robust end-point connectivity with ease.
wireless connectivity with reduced power con- A02
sumption, support for the over-the-air firmware Whether deployed as a pure cable replacement uJoachim Strohschenk, +49 89 130143817
updates, and an upgrade path to DIGIMesh® or for simple serial communication, or as part of a joachim.strohschenk@codico.com
ZigBee® Mesh protocols. more complex hub-and-spoke network of sen-
2016:2 | 5
IMPULSE | ACTIVE COMPONENTS
QCA4010 & DNSA-MP1
HOSTLESS WI-FI SOLUTIO
IOT APPLICAITONS!
With the recent hype and the successfull releases of IoT products in the
last years, many companies are put under big pressure to follow this hype
and to take the initiative of coming up with own IoT products or to extend
the existing product portfolio respectively. With the increasing number of
nodes connected to the Internet, also the demand for low cost solutions
with reduced BOM cost has increased. One way to overcome this, is the
integration of the application MCU, network-processor and Wi-Fi radio in
one IC. The so-called SoC (System on Chip) allows the implementation of
a complete IoT application on a single device without the need of an
external MCU. As no external MCU is required, this kind of operation is
named hostless mode. The new QCA4010 from QUALCOMM follows this
approach and provides also special low power features and wake up
scenarios. WISTRON, as an ODM partner, has released a Wi-Fi module
(DNSA-MP1) that is based on the QCA4010.
©chombosan - Fotolia.com
6 | 2016:2
ACTIVE COMPONENTS | IMPULSE
ved for application code. The bigger version pro- the user profits from the low power features like
vides 1.5MB, which allows the integration of Green Tx power saving mode and low power
~800KB application code. listen mode supported by the radio.
NS FOR In order to reduce power consumption to a mi-
nimum, the QCA4010 provides an integrated
Power Management Unit (PMU) that controls
different power modes based on the following
techniques:
The QCA4010 provides many different interfaces
that are required in typical IoT applications. For
the measurement of analog sensors, a 12 bit
ADC with 8 channels supports 400ksps for mul-
tiple channels and 1Msps for single channel ope-
ration. 8 independent 18 bit resolution PWMs
with 8 bitclock prescaler are also available for e.g.
Gating-Clock: Not required function blocks
motor control and lighting. For serial communi-
are disconnected from the clock network in or-
cation the user can chose from HS UART (3Mbps),
der to prevent charge-reversal currents of pa-
T
he QCA4010 integrates an Xtensa CPU @ 130 low speed UART, SPI, I2S or I2C as well. The follo-
rasite capacities.
MHz from Tensilica that is responsible to pro- wing list gives an overview about the features:
Shut-Down High Speed Clock: When the high
vide all IP services and to manage all Wi-Fi links.
speed clock network is not needed, it can be
The QCA4010 provides no internal Flash, but • Support for IEEE 802.11b/g/n
entirely disconnected, including external pulse
SRAM and ROM. Therefore the network proces- • Single stream 1 × 1
sources such as oscillators.
sor code, system configuration and persistent • Single-band 2.4GHz
Reduction of the voltage level: The voltage
data sets are loaded from external serial flash • Integrated PA, LNA, with support for
levels of individual blocks can be reduced in
memory into the internal SRAM before execution. external PA and external LNA
order to keep the static leakage currents low.
The application code is executed on the same • Single or dual Rx front end
A minimum voltage guarantees a short wake-
CPU and memory ressources like the network for antenna diversity
up time and maintains the data contents of all
processing code. Because the sesnor measure- • Green Tx power saving mode
registers and of the volatile memory.
ment, actor control and data processing handled • Low power listen mode
by the application is normally done before a • Data rates up to 150Mbps
Wi-Fi link is established for data snychonisation, The different low power modes are also suppor- • Full security support:
there is no bottleneck from the processing point ted by a low speed clock network (32.768 kHz) WPS, WPA, WPA2, WAPI, WEP, TKIP
of view. So in the most IoT applications, network and a wakeup manager unit. The low speed clock • 8 channels 12-bit accuracy ADC, maximum
and application processing is done in a time di- network is required to run the state machine and sampling rate is 400Ksps for multiple
vision manner by the CPU. sleep timers. The wakeup manager resumes ope- channels and 1Msps for single channel
ration by detecting internal and external trigger • 18-bit resolution PWM with 8-bit
But even if there is a demand to process both at signals. For example, in suspend mode it detects clock prescaler
the same time, the performance-rich 32 bit ar- a wake up signal at a pin or from the internal • 9x9mm DRQFN-116pin
chitecture of the Xtensa CPU together with the sleep timer, after a predefined time has passed. • Case temperature range: 0°C to 85°C
clock speed of 130MHz provide sufficient calcu- In this mode it manages also a small RAM that (standard); -45°C to 115°C (extended)
lation power to overcome this demand. stores state information. Further modes like
POWER DOWN (~9μA), SLEEP and HOST_OFF ex- For dual band application (2.4GHz & 5GHz),
To fulfill the different application memory requi- tend the range of configurations and allows a fi- QUALCOMM offers the QCA4012, which has
rements in the IoT world, the QCA4010 is re- ne power tuning of an IoT application. But even exact the same system architecture and features
leased in two SRAM versions. The smaller version in network operation, when the CPU is running like the »small« brother QCA4010, but provides
integrates 1MB SRAM, whereas ~400KB is reser- at high speed clock and a Wi-Fi link is operating, just an additional 5GHz radio path. Therefor both
parts are available in the same 9×9 ×0.9mm Dual-
QCA4010 System Architecture
Row Quad Flat pack Nolead (DRQFN) package
that includes a ground pad for improved groun-
High-Speed
ding, mechanical strength, and thermal continuity.
UART
PA JTAG Moreover both parts are even pin compatible.
CPU
802.11n GPIOs
WLAN GPIO/
LNA
PWMs But it should be mentioned that the concurrent
MAC/BB/ Peripherals
ADCs
Radio mode is not supported by the QCA4012 as only
On-Chip I²S
ROM one Wi-Fi link (2.4GHz or 5GHz) can be served at
I²C
Timers a time. Anyhow, both devices (QCA4010 &
Host/ UART
On-Chip Manufacturing QCA4012) support Rx diversity in the case that
OTP
PMU RAM Interface Block SPI
two Rx antennas are connected to the devices.
SPI Flash Memory 2016:2 | 7
IMPULSE | ACTIVE COMPONENTS
DNSA-MP1-Spezification • Built in protocol stacks:
• QCA4010 based Wi-Fi modules HTTP, DHCP, DNS, NTP, etc.
• 2.4GHz IEEE 802.11b/g/n, single stream 1x1 • 30mmx16mm size, 4-layer
• 11n support for HT20 and HT40 bandwidth • Printed antenna or U.FL connector
• Internal PA and LNA, with external • Single power supply: 3.3V
RF Switch for antenna diversity • Operation temperature:
• Green Tx Power Saving Mode, -40°C to 85°C (Industry Class Version)
Low Power Listen Mode • Regulatory compliances: CE, FCC
• Up to 800KB of on-chip memory available
for customer application A03
DNSA-MP1: Wi-Fi module based on QCA4010
• Integrated IPv4/IPv6 networking stack uAndré Ehlert, +49 89 130143811
• Full security support: WPS, WPA2, WEP, SSL, etc. andre.ehlert@codico.com
QUALCOMM is an IC but not a PCB module sup-
plier. Therefore QUALCOMM works very closely Block diagram DNSA-MP1
with ODM partners like WISTRON, which manu- DC 3.3V
facture and sells Wi-Fi modules based on the MFI
SPI Flash 40MHz chip
16M bits XTAL (Opt.)
original reference designs/modules from QUAL-
HSUART SPI I2C
COMM. interface interface
In case of QCA4010, WISTRON offers a module SDIO/SPI/UATR2
DNSA-MP1
with the part number DNSA-MP1. MP1 is QUAL-
COMM’s internal name for the QCA4010 refe-
I2S Block Diagram
I2CM
rence module. WISTRON has extend this part
RFOUT2N1
number with the prefix DNSA- to create an inter- I2CS/PWM x 2 QCA4010 RFOUT2P1 TX/RX
nal one. Documentation, SW and technical sup- 9X9 DQFN RFIN2N1
Balun
IC
Filter ANT
PWM x 4
port is provided by QUALCOMM, where as RFIN2P1
WISTRON provides the HW and the test reports USB
based on the module name DNSA-MP1. Internal
ADC x 4
Regulation
3.3V - 1.2V
3.3V - 1.8V
DC 3.3V DC 1.2V
©GKSD - Fotolia.com
8 | 2016:2
ACTIVE COMPONENTS | IMPULSE
WORLD SMALLEST
COMBO GSM/GNSS/Bluetooth 3.0
COMBO MODULE
©Rawpixel.com - Fotolia.com
FEATURES
• Size: 16x18.7x2.1mm
• LCC package
The all new QUECTEL MC60 module is a multi-purpose module which
• Power supply 3.3~4.6V, 4.0V Typ.
integrates a Quad-band GSM/GPRS engine, a GNSS receiver and a Blue-
tooth 3.0 radio. The ultra-compact size of 16x18.7x2.1 mm makes MC60 a • Quad Band GSM/GPRS
perfect platform for size sensitive applications such as wearable device, • Dual SIM Single Standby
vehicle and personal trackers, telematics and other M2M applications. • Embedded Internel protocols
• Fully synchronous GNSS receiver
T
he module comes with an adjustable GPRS In terms of Bluetooth 3.0 connectivity the follo-
• with built in LNA
class 1-12 for extremely low power consump- wing profiles are supported: SPP for serial data
• Advanced positioning technologies
tion and the GNSS receiver comes with built in transfer and HFP-AG for audio mono applicati-
ons.
• Bluetooth 3.0 (SPP, HFP)
LNA for better sensitivity. GSM and GNSS engines
can work as a whole (all-in-one solution) unit or • Interfaces: 2x UART, SD, Analog
work independently (stand-alone solution) accor- Advanced positioning techniques and assisted • and digital audio, GPIO, ADC,
ding to customer demands. GPS functions are integrated in the module and 3x Antenna pads
allow improvement of the Time to First Fix and • Industrial temperature range
In the all-in-one solution, the MC60 works as a power consumption. MC60 module support also
whole unit and the GNSS part can be considered OpenCPU which is an embedded development
as a peripheral of the GSM part. In the stand-alo- system that allows the integration of the user ap- A04
ne solution, GSM and GNSS parts work indepen- plication into the module memory avoiding the uLeonardo Bazzaco, +49 0422 262304
dently and thus have to be controlled separately use of an external microcontroller. leonardo.bazzaco@codico.com
by two different UART interfaces.
2016:2 | 9
IMPULSE | ACTIVE COMPONENTS
Make the trans-
former history
RECOM's grand new RAC05 series
is designed to replace a 1x1”
transformer PCB module, that
used to be the first option for a
cost efficient auxiliary, Standby
or Remote power supply.
S
uch devices appear in various applications
like white Goods, industrial applications and
lately more important: IoT applications. Using a
transformer over a switch mode power supply
(SMPS) was eventually a commercial decision. In
spite of all advantages (i.e.: efficiency, input vol-
tage range, regulation, etc.) loads of applications
were stuck with a transformer rather than mo-
At the size of a coffee bean! ving on to a SMPS.
Green energy is on the agenda for most applica-
tions so the greener such device gets the better.
RECOM's all new 3 Watt DC/DC The RAC05 series, features a no load power con-
converter series, RI3, features sumption under 0.2W whilst offering up to 5W
a very compact size and output power in a small and popular 1x1” foot-
ultra-high power density. print. The midget complies with EN55022 Class
B conduction and radiated emissions without the
D
espite their small size, these modules can need for any further components such as filters
be operated over a very wide temperature and fuses. The (protection) class II module comes
range from -40°C to +85°C without derating. The as a plug and play solution with output voltages
beauty of the product however, is its capability ranging from 3.3VDC up to 48VDC and makes it
to work up to +100°C with 60% output power. perfect whenever small power is demanded, all
with three year warranty.
©Jakub Jirsák - Fotolia.com
Fit into a compact SIP4 case (11.5x10.2x7.6mm), A06
almost the size of a coffee bean – these conver- uAndreas Hanausek, +43 1 86305 131
ters are ideally suited for applications where spa- andreas.hanausek@codico.com
ce is limited. The converters have an operating
efficiency up to 90% and can be operated down
to 0% load. Available in multiple combinations
of input (5, 12, 15, or 24VDC) and output voltages
(5, 9, 12, or 15VDC) the midget can be ordered
with different I/O isolations of 1, 2, or 3kVDC
making it perfect for virtually any industrial ap-
plication.
These modules additionally feature an integrated
input filter (in accordance to EN 55022 class A)
and do not require additional components. They
are IEC/EN/UL-60950-1 certified and come with
RECOM’s standard 3 year warranty.
A05
u
Andreas Hanausek, +43 1 86305 131
andreas.hanausek@codico.com
10 | 2016:2ACTIVE COMPONENTS | IMPULSE
Just too cool!
EOS Power's new open-frame
family offers up to 550W in a
3x5x1.5” standard profile and
combines separately-ventilated
or forced air, convection and
conduction cooling.
T
he new WLC series offers the highest power
density currently available (24W/in³) on the
market. It combines unique cooling and perfor-
mance adaptation for all end-devices requiring
a standard footprint of 3x5x1.5” (76x127x38mm).
The small open-frame AC/DC transformer in
3x5x1.5” standard format can be used for medical,
IT, and industrial solutions with a power require-
ment of up to 550W, and can operate with forced
cooling, contact cooled, or even in convection-
Get on the train!
cooled environments
Specifications RECOM's isolated 20W DC/DC
• Up to 550W power performance converter, the RP20-FR series,
with forced air cooling is especially designed for
• Efficiencies up to 93% railway applications.
• - 40 to +70°C operating temperature
T
• EMC in accordance with IEC60601-1-2:2014 he compact 2”x1” modules feature a wide
• 3x5x1.5” industrial standard size 4:1 input voltage range (9-36V, 18-75V, 43-
• Contact cooling & convection cooling optional 160V) and therefore cover all standard battery-
board levels including the ±40% tolerance mar-
The (M)WLC 550 series is another powerful small gin. Besides 3.3V, 5V, 12V and 15V single outputs,
solution with particularly flexible cooling and de- dual ±12V and ±15V outputs are also available.
©jefunne- Fotolia.com
vice integration. It complements the WLP and The control pin logic can be chosen to be positive
WLT series perfectly, which EOS Power has deve- or negative.
loped over the past few years.
The converters have an efficiency of up to 89%
The new (M)WLC550 series in standard size pro- and feature a wide operating temperature range
vides optimum performance in a small space, of -40°C to +85°C (-HC versions). Cooling is achie-
and opens up the possibility of working on a foot- ved by natural convection, but if required, the
print of 3x5”, contact-cooled up to 250W or up modules are also available with a pre-mounted
to 550W with forced cooling. Customers in the heatsink.
medical sector trust in BF Design compliance, risk
management and compatibility, to meet the The modules are EN50155 certified with
forthcoming EMC Directive EN60601-1-2-2014. EN50121-1-3-2, EN61373 and UL/cUL-60950-1
Optimized space utilization, efficiency, and coo- approvals. They come with RECOM's standard 3
ling possibilities with the new (M)WLC550 series year warranty. Despite its original designation,
offer customers a wide range of operational pos- the converter is also a reliable choice for indu-
sibilities. strial and telecom applications.
A07
uAndreas Hanausek, +43 1 86305 131 A08
andreas.hanausek@codico.com u Andreas Hanausek, +43 1 86305 131
andreas.hanausek@codico.com
2016:2 | 11IMPULSE | ACTIVE COMPONENTS
Electrical safety in medical technology:
SAFE ISN’T ALWAYS SAFE
©Tyler Olson - Fotolia.com
RACM40_65: Ideally suited for medical technology –
Medical technology in general is a growth market, regardless of no derating with housing thanks to convection and contact cooling –
and ambient temperatures of up to 80°C
whether this involves devices for use in surgery or intensive care,
or in the professional medical environment such as in the laboratory
sector or diagnostics. Sales revenue in the USA and Europe was already external power supply unit which supplies it) and
up by three percent in 2014, with investments in research and develop- which is therefore in direct contact with the user,
ment steadily growing by six percent. Firmly on the rise in line with but a healthy user, and therefore, on the basis of
the trend, however, the highest – two-figure – growth figures are in use in the office or IT environment, is likewise »on-
non-imaging diagnostics and in the therapy sector. ly« approved in accordance with IEC/EN60950.
The much more stringent Classes BF and CF des-
I
n addition to the professional field, the therapy plied. To ensure electrical safety for power supply cribe equipment which is in direct contact with
sector is also steadily increasing in importance. units, there are two Standards which are relevant. the patient. In this situation, a distinction is made
Particularly interesting in this context is what is re- On the one hand, there are IEC/EN60950-1 between on or under the skin, i.e. inside the
ferred to as »mobile health«. Constant cost pres- and IEC/EN60601-1. At this point, too, the IEC/EN body. Both classes also impose higher or safer
sure on the health insurance funds means that 60335-1 (»Household and similar electrical appli- isolating distances (MOPs – Means of Protection).
stays in hospital as an inpatient should as far as ances«) should be mentioned, which is sandwi- In this case, this is designated as MOPP (Means
possible be minimized, and that means remote ched between the two other Standards referred of Patient Protection) – one of the innovations
treatment and therapy in the patient’s own home, to. Both of them serve the same purpose, but with IEC/EN60601 3rd Edition.
homecare, are becoming more and more signifi- only one can be applied to medical technology.
cant. For electrical devices in the medical techno- IEC/EN60601-1 differentiates between devices All the classifications referred to up to now relate –
logy sector, however, use in the private environ- with direct and indirect patient contact, and without exception – to equipment. The power
ment means that conditions and regulations are a distinction is drawn between three classes: supply unit or the power supply as a key com-
becoming more stringent, too. Portable devices B (Non-Patient Contact), BF (Body Floating), and ponent can indeed simplify this requirement,
with direct mains connection must, according to CF (Cardiac Floating). but this does not mean that they will fulfil it
IEC/EN60601-1, always be designed in protection alone. For example, when combined with a
class II, and, if appropriate, also in BF. The below Class B is suited for general medical applications, DC/DC converter securing the additional insula-
should clarify these terms in greater detail. and therefore only for MOOP (Means of Opera- ting distance, a general B-classified IEC/EN60601
tor Protection). This means medical personnel, power supply unit can become one for direct
Electrical safety with power supply units relates or even members of the general public, who ope- patient contact. The same also applies to the
essentially to protection against electric shock. rate the device in a healthy state. A comparison maximum leakage currents. The table below pro-
In this context, depending on the application, the- in this case would be a PC which is approved in vides an overview of the relevant air clearance
re are a number of different Standards to be ap- accordance with IEC/EN60950 (and likewise the and creepage distances.
12 | 2016:2ACTIVE COMPONENTS | IMPULSE
1. Creepage and clearance distances
INSULATION CATEGORY WORK VOLTAGE TEST VOLTAGE CREEPAGE DIS- AIR CLEARANCE
Pri to Sec Two MOPP Double 150-250Vrms 4000Vac 8mm 5mm
Pri to PE One MOPP Basic 150-250Vrms 1500Vac 4mm 2.5mm
Pri to Pri One MOPP Basic 150-250Vrms N/A 3mm 1.6mm
3rd Edition
Sec to PE One MOPP Basic < 60Vdc TBD 2.2mm 1.2mm
Pri to Sec Two MOOP Double 150-250Vrms 3000Vac 5mm 4mm
Pri to PE One MOOP Basic 150-250Vrms 1500Vac 2.5mm 2mm
Pri to Pri One MOOP Basic 150-250Vrms N/A 3mm 1.6mm
Sec to PE One MOOP Basic < 60Vdc No test 1.3mm 1mm RACM100
In red: Amendement 1 (2012)
2. Leakage currents in μA
TYPE B TYPE BF TYPE CF
LEAKAGE CURRENT from 5V to 48VDC – and all without the need for
NC SFC NC SFC NC SFC
Earth Leakage Current 5000/500 10000 5000/500 10000 5000/500 10000 a fan. All the power supply units are certified for
3rd Edition
Touch Current 100 500 100 500 100 500 medical use in accordance with UL, CE and 3rd
Patient Leakage Current DC 10 50 10 50 10 50 Edition, with 2xMOPP/250VAC, and comprise a
(N/A to power supply) AC 100 500 100 500 10 50
very low leakage current (IMPULSE | ACTIVE COMPONENTS
3-phase Motor Drive as
INTELLIGENT
MICROSYSTEM
Drive design and motor actuation systems call for a detailed basic
knowledge in working with electric motors. And in this context, account has
to be taken in particular of the issues of commutation, motor regulation,
sensor systems for the rotor position, and the connection of the motor
control system to a number of different interfaces.
T
ypically, however, the core skills required of form of hardware and software building blocks
manufacturers of equipment and systems which come ready to use, in whatever products
who integrate electric drives into their products may be involved, without a detailed know-how
lie on a much higher abstraction plane. Someone of motor actuation and control being a prerequi-
who is developing blood analyzers, for example, site for the product developer.
has outstandingly good skills in the fields of
image processing or reagents, while the move- The newly presented TMCC Motion Cookie series
ment of probes and sensors is simply a necessa- from TRINAMIC addresses precisely this require-
ry evil. Either the drive technology is bought in ment. This is a microsystem with integrated
as a ready-to-use module, or the skills required driver hardware, application software and proto-
are worked up in-house, which tends to detract col stacks, which means that design and develop-
©LVDESIGN - Fotolia.com
from the focus on the core task. ment cycles can be shortened to a bare minimum.
In addition to the integrated application proces-
This means that drives must be capable of inte- sor, on which the field-oriented regulating unit,
gration in the simplest possible manner, in the a ramp controller, and the protocol stacks are
TMCC150 Diagram
executed, the TMCC160 also features a high per-
Optional Brake Circuit VM formance gate driver with a gate flow of maxi-
Ref.
R mum ±1A, which means that it can reliably and
Switches
rapidly control N-channel power switches for 3-
phase control systems, with a power rating from
35 36 11 12 10 22 23 43 21
a few tens of Watts to 1kW at 24V supply voltage.
VM
In order to reduce the total number of compo-
6/7
I_U/I_V nents required, an integrated switching control-
or Motor
UART 39/40 RS+/RS-
Host PC CAN 37/38 PWM 50/51 U ler provides the voltage to the module and other
or 30-33
Micro- SPI 1 2-5
Micro- DIAG Gate-
HSx/LSx/BMx
V digital components in the system.
controller driver
controller AIN 9 Current 9 W
15-20
47-49
For rapid design-in, the TMCC160-EVAL is availa-
VM
ble as a validated reference design. The refe-
HALL
SPI0
DC/DC
3.3V
TMCC 160
rence design is divided into individual easily ad-
14 13 44 24-26
3.3V Power Bridge aptable design blocks. Available as a basic block
3
3 is the TMCC160 motionCookie, together with a
EEPROM
3.3V perfect example of an output stage and the cir-
cuitry required for this, for current measurement
14 | 2016:2ACTIVE COMPONENTS | IMPULSE
TMCC150 Screenshot
for a motor power of up to 500W. Circuitry units As a supplement to the TMCL protocol, later
for bus communication via RS232, RS485, or members of the motionCookie family will also
CAN, as well as for analog and digital control si- be on offer with industry standard protocol
gnals are available as delimited building blocks stacks such as CANopen or CANopen over Ether-
which can easily be adopted into the developer’s CAT (CoE).
own design. .
A10
One of the key development aims was to reduce uJohannes Kornfehl, +43 1 86305 149
development times and costs for embedded johannes.kornfehl@codico.com
servocontrollers to the minimum necessary, and
for that purpose a field-oriented control unit is
implemented onto the motionCookie microsy-
stems, together with the superordinate speed
and position controllers. With the TMCL-IDE, avai-
lable free of charge, developers now have a
powerful tool at their fingertips for quick imple-
mentation and parameter setting of the control
system.
2016:2 | 15IMPULSE | ACTIVE COMPONENTS
500 MBPS OVER
TWO WIRES
New Powerline modules from ADATIS
Figure 2
Power
DDR SPI
Supply XTAL
SDRAM Flash
DC/DC
43-pin connector
TX Filter
AR1500
In many industrial applications, there is a need to transport AFE
AR7400
RX
R (C-Temp)
high data rates over longer distances. Examples for this are Receive
Filter
Filter
among other data communication in vessels over their AR7410
(I-Temp)
onboard power system, transmission of data of all sorts in MII/RGMII
trains, buses, trams – also via swivel joints and hitching/coupling
systems, via slewing rings, transmission of video and sensor
data in agricultural and construction machines or in security Figure 1: Block diagram of 2LAN500 module
systems, traffic monitoring systems, traffic lights and so on.
I
n order to face this trend, company ADATIS - operated on dead wires. Of course, the modules communication, one version each for vertical
the specialist for face recognition and door en- can be operated on classical power lines as well. mount and one for horizontal mount.
try systems – did develop two new Power Line They contain all major parts required in order to Industrial Temperature
Communication (PLC) modules based on current tunnel Ethernet data over the line, except the li- One variant in industrial temperature range
QUALCOMM Chipsets. ne-coupling transformer as well as the Ethernet (-40° to +85°C), based on QUALCOMM AR7410/
PHY and Ethernet transformer. AR1500 chipset, with rGMII interface for Ether-
The »2LAN500« named modules allow data rates net communication, one version each for ver-
of up to 500Mbps on the line and ranges of up Both modules do have a size of 27.5x69.5mm. tical mount and one for horizontal mount.
to 500 meter. Thereby they can be used on any They are available in following variants:
kind of wiring like for example bell wire - means Figure 2 shows the 2LAN500 module in horizon-
a twisted pair of wires, CAT5 cables, Coax cables, Commercial Temperature tal mount version. In order to evaluate the power
one wire against protective earth, etc., regard- One variant in commercial temperature range line technology in practice and in order to check
less of whether the cable carries alternating or (0°to +70°C), based on QUALCOMM AR7400/ out the modules a so called »2Wire Converter«
direct current in addition or the modules are AR1500 chipset, with MII interface for Ethernet is available from ADATIS, see Figure 3.
16 | 2016:2ACTIVE COMPONENTS | IMPULSE
©vladimircaribb & Sven Hoppe - Fotolia.com
Figure 3: 2Wire Converter from ADATIS Figure 5: 2Wire Converter with open case
It is fitted into a stainless steel casing, supplies 2Wire Converter with open case and plugged in the PLC technology it is required to use two con-
the module with power, provides the line coup- 2LAN500 module in horizontal mount version. verter, CODICO sells them as a kit, one each for
ling and routes the PLC signal to wire clamps on Since normally for evaluation of the modules or 10/100Mbit/s respectively Gigabit-Ethernet inclu-
the outside of the box. It also provides the Ether- ding two pieces of 2Wire Converters each as well
net connection to a standard Ethernet socket. Be- as power plug in one box.
side that, it allows to provide power to devices
connected by using »Power over Ethernet (PoE)« As of now the new modules and the 2Wire Sets
technology of up to 20 Watt. Figure 4 shows the are available from CODICO.
outside connection of the 2Wire Converters. A11
u Werner Reis, +49 8141 357264
The 2Wire Converter is available as 10/100Mbit/s werner.reis@codico.com
Ethernet type using a 2LAN500 module in com-
mercial temperature range as well as Gigabit
Ethernet type using a 2LAN500 module in indu-
strial temperature range. Figure 5 shows the Figure 4: Connections
2016:2 | 17IMPULSE | ACTIVE COMPONENTS
SMALL POE WORLD
This tiny ultra-miniature POE PD module is truly the smallest POE module Luckily, SILVERTEL now have years of experience
and POE solution in the market. Capable of delivering up to 12W of in pushing the boundaries of POE back with mo-
power, and even rated for up to 7W at +85°C, it packs an incredible dules for up to 100W and squeezing high power
performance into the smallest of spaces. It is the culmination of years into ever smaller packages through creative
of development in high power and size reduction from SILVERTEL. and innovative engineering. This expertise has
W
e said in our last article [Impulse 1/2016,
A17] about solar power energy harvesting
that there are many trends in electronics. One
such long standing and pervasive trend is the
need and drive for continual miniaturisation.
With many technologies it can be relatively
straightforward, but in the world of power, it’s
never easy, as power components, transformers
and heat dissipation all create difficult to over-
©Kenishirotie - Fotolia.com
come barriers to miniaturisation. Meanwhile,
cutting-edge miniaturization typically becomes
AG5300 more expensive as sizes are reduced. AG9900/AG9800 RJ45
18 | 2016:2ACTIVE COMPONENTS | IMPULSE
The ever shrinking world of POE
from SILVERTEL – take a look at
the new Ag9900M!
Amazingly, SILVERTEL’s R&D team identified du-
ring the Ag9800 design, that significant further
reductions were still possible, through improve-
ments in efficiency and an even smaller footprint
transformer.
The Ag9900M
Now released, Ag9900M is the newest POE from
SILVERTEL, displacing the Ag9800M as the world’s
smallest POE module, in an amazingly tiny 21x
Ag9900M
14mm footprint.
in the Ag9700 series, the lowest cost module With a rapidly increasing number of remote sen-
SILVERTEL produce. Then the real miniaturisati- sors and gateways being designed for the Inter-
on work began. net of Things, all in increasingly small packages,
with low power consumption, and frequently re-
With requests and demand for smaller footprint quiring external installation, the advent of the
POE the Ag9700M first isolated SMT package Ag9900M is perfectly timed to deliver all the ad-
POE module was designed and released. While vantages of industrial temperature low power
well received, the height of the Ag9700M series POE in the smallest of footprints.
(18mm) was a restricting factor, as it used the
©Silvano Rebai - Fotolia.com
standard transformer package from the earlier To put the package reductions into context,
SILVERTEL ranges. With IOT applications such as the footprint size reductions from the Ag9700SIL
sensors and home automation systems requi- package to the current Ag9900 ultra miniature
ring small packages and fingerprint readers hou- SMT package are illustrated in the graphic below.
sings continuing to shrink, pressure to further re-
delivered the miniaturised Ag9900M series, at al- duce package sizes continued. Samples of the all new midget are available
most the same price point and with improved from CODICO Stock and via our Sample shop.
performance over the larger Ag9800M. The SILVERTEL engineering team embraced the
challenge, to produce an even smaller footprint A12
The expertise comes in part from experience gai- and lower profile SMT package POE, Ag9800M, u Andreas Hanausek, +43 1 86305 131
ned in producing the world’s highest power using a new much smaller transformer. The re- andreas.hanausek@codico.com
100W POE modules. High power POE is typically design created the smallest ever POE module in
used in high end AV HDBaseT applications, IP Ca- a tiny footprint, Ag9800 series.
meras, marine sensors, access control systems
and video conferencing systems. SILVERTEL’s
SIL range of 802.3af compliant Ag9XXX modules That’s the overall package size reduction from Ag9700S to Ag9900M of 71%
has also been used extensively throughout the
world since 2005 and the format of the modules
and package will be familiar to everyone in the
industry. Ag9700S Ag9800M Ag9900M
Reduced Reduced
by 50% by 40%
At first the driving force behind the evolution of
the module range was to reduce cost, resulting
2016:2 | 19IMPULSE | ACTIVE COMPONENTS
36V SOLUTIONS
Low Quiescent from TOREX
The number of devices that will be connected to the Industrial Internet of
T
o meet the demands of this growing IIoT
Things (IIoT) is forecast to grow to almost 2.5 billion per annum by 2021, market, TOREX has introduced two low quies-
from about 1.2 billion in 2015. IIoT is essentially adding intelligence and cent current solutions, a 36V synchronous step-
connectivity to ever smaller, remote industrial devices such as proximity down DC/DC that only consumes 11.6uA in ope-
sensors, motion detectors and pressure measurement equipment. The ration and a 36V high speed, low noise LDO with
M2M wireless communication between these devices is provided via Blue- a quiescent current of just 40uA. The extended
tooth Low Energy (BLE), LoRa, WiFi and other low energy solutions that +105ºC operating temperature range of both pro-
need to be powered by equally low power, power management devices. ducts, makes them ideal solutions for the indu-
strial market and in particular the IIoT market
where low power consumption at higher volta-
©georgejmclittle - Fotolia.com
ges are the key.
XC9267/68 Series
(36V, 600mA Synchronous Step-
Down DC/DC Converter)
The XC9267/68 is synchronous step-down DC/DC
with an internal P-Ch High Side Switch to ensure
low voltage operation with 100% max duty ratio.
It can operate from 3.0V~36V (absolute max. 40V)
and deliver loads up to 600mA. Output voltage
is set externally within a range of 1.0V~25V and
the quiescent current is only 11.6uA (XC9268,
1.2MHz type) in operation. The XC9267/68 has
an enable pin which allows the DC/DC to be pla-
ced in stand-by mode with a stand-by current of
just 1.65uA.
Whilst the XC9267 is fixed PWM control, the
XC9268 is automatic PFM/PWM control and is de-
signed for high efficiencies at low output loads
without burst modes (Fig.1):
100
80
Efficiency: EFFI (%)
60
40
VIN=10.0V
VIN=14.0V
20 VIN=20.0V
VIN=30.0V
0
0.1 1 10 100 1000
Output Current: IOUT (mA)
Figure 1: Efficiency vs. Output Current, VOUT=3.3V
20 | 2016:2ACTIVE COMPONENTS | IMPULSE
©wallixx - Fotolia.com
3.3μ H (2.4MHz)
6.8μ H (1.2MHz)
L
3.0V˜36V Withstands up to 46V for 400ms
VIN VX
VIN VOUT
CIN Ceramic Output
2.2μF RFB1 Capacitor
CFB INPUT
CE
EN/SS FB
CL VSS
Adjustable
Soft Start RFB2 10μF
RPG CIN=1.0μF CL=1.0μF
(Ceramic) (Ceramic)
GND PG
Power Good
Output
Figure 2: Typical Application Circuit Figure 3: Typical Application Circuit
The XC9267/68 works with small Low ESR ce- can be implemented with a minimal number The XC6702 is available in SOP-8FD, SOT-89-5 and
ramic capacitors and comes with a choice of of external components (Fig.2) an ultra-small USP-6C package measuring only
two switching frequencies (1.2MHz or 2.4MHz). 1.8x2.0x0.6mm.
Adjustable soft start and a power good output XC6702 (36V, 300mA High Speed,
(USP-6C package only) provides the design engi- Low Noise LDO Regulator) Samples for both families plus evaluation boards
neer with power sequencing capabilities, a fea- If a LDO is preferred, this 36V CMOS high speed for the XC9267/68, can be requested already. The
ture that not many DC/DCs in a package of this voltage regulator also offers the designer a low evaluation boards for the XC9267/68 are custom
size (2.0x1.8x0.6mm) can offer. The series also quiescent current (40uA). The XC6702 can sup- made to the customer’s specific requirements.
features Over Current, Under Voltage, short-cir- port output voltages from as low as 1.8V up to Test data is provided with each Board.
cuit & Thermal Shutdown protection circuits. 18V (±1.0%) and although operating voltage is up A13
Available in SOT-89-5 and the ultra-small USP-6C to 36V, the XC6702 can withstand surge voltages uJohannes Kornfehl, +43 1 86305 149
package, an extremely small DC/DC circuit of up to 46V for 400ms and can be used with johannes.kornfehl@codico.com
small low ESR ceramic capacitors (Fig.3).
XC6702D501PR-G The over-current protection circuit and over- XC6702D501PR-G
Ta=25˚C, VIN=6.0V, IOUT=1mA, VCE=OV >6.0V, tr=5.0μs IOUT=1mA < >30mA, tr=tf=5.0μs
7.5
CE Input Voltage
500 heat protection circuits are built-in. As with the 6.6 150
6.0 450
XC9267/68, the XC6702 can also be put in stand- 6.2
Inrush Current: IRUSH (mA)
4.5 400
Output Current: IOUT (mA)
CE Input Voltage: VCE(V)
Output Voltage: VOUT(V)
120
Output Voltage: VOUT (V)
5.8
Output Voltage 350 by mode via the chip enable pin, thereby redu-
3.0
5.4 Output Voltage
1.5 300 cing current consumption to just 0.01uA. The soft 90
5.0
0.0 250 start circuit limits the inrush current that flows 4.6
-1.5 200
CL=2.2μF Inrush Current from VIN to VOUT when the IC starts, enabling a 4.2 60
-3.0 CL=4.7μF 150 3.8
stable start-up sequence (Fig.4). Output Current
-4.5 CL=10μF 100 30
3.4
-6.0 50
In addition, the XC6702 provides fast load tran-
3.0
-7.5 0 sient response performance ensuring that the 2.6 0
Time (100μs/div) Time (200μs/div)
output voltage remains stable as the load current
Figure 4: Example of the Inrush Current Waveform at IC Start-Up changes (Fig.5). Figure 5: Load Transient Response
2016:2 | 21IMPULSE | ACTIVE COMPONENTS
Contactless Angle Sensing for Rotary Switch Applications:
MA800 FAMILY
©Andrey Popov - Fotolia.com
Rotary knobs are used in a diversity of human to machine interface MA800 family is a proprietary angular Hall sen-
applications from the program selector on a washing machine, to the sing technology called »SpinAxis™« which con-
infotainment and navigation control system in the car, or even the verts the mechanical angle information into
temperature control knob of an oven. These applications typically use a a digital format directly without the need for
conventional potentiometer or in some case a mechanical rotary switch. complex analog to digital conversion and angle
computation.
T
he drawback of such approaches is opera- sensor is possible, removing the possibility of dirt
ting lifetime. The resistive tracks on a poten- or moisture ingress. This unique approach provides high perfor-
tiometer or the contacts on a switch wear out mance, but also cost effectiveness due to its sim-
over repeated turns, and often such solutions The MagAlpha MA800 family is a new simple to plicity. As such, the MA800 family is competitive
are limited to around one hundred thousand use digital magnetic sensor range
cycles. They are also prone to failure due to en- designed to replace analogic poten- Contactless Angle Sensing
vironmental factors such as dirt or moisture in- tiometers or rotary switches in Increases Reliability In Rotary 1-2mm
gress via the rotary shaft mechanism. such applications. The sensor de- Switch Applications
tects the absolute angular position
The use of magnetic angle sensors to implement of a permanent magnet, attached to the rotating
contactless sensing has distinct advantages for knob. Typically a simple diametrically magnetized ø5mm
rotary interfaces. The obvious advantage is much cylinder of 3 to 8mm diameter is suitable.
3mm
longer life time since there are no contacting
parts to wear out. In addition, the fact that the A wide field strength range is supported which
sensor is physically separate to the magnet allows flexibility in the mechanical arrangement
means that complete hermetic isolation of the of rotary knob and sensor. At the heart of the Figure 1: Example of a potentiometer with MA800
22 | 2016:2VDD
ACTIVE COMPONENTS | IMPULSE
MA8xx
CS
NVM Registers SCLK
Serial MISO
Interface MOSI
Spinaxis front-end SSCK
Digital 360°/ 1 to 64 pulses
SSD
Phase Conditioning
BP detection PWM PWM A
(MA850)
2D Hall effect A
(MA820)
device ABZ
B B
Encoder
Z
Amplitude MGL Z
detection MGH 0° 360°
Magnetic field angle (deg)
GND
Figure 2: Block diagram of sensor Figure 5: Quadrature ABZ waveform
against existing potentiometer or mechanical to the sensor and provide dedicated signals to For applications wanting to retrofit to the ana-
switch solutions even in price sensitive consumer indicate if those thresholds are triggered. A non- logue output of a potentiometer solution, the
applications. contacting push button function is therefore easy MA850 version features a PWM output which can
to implement with a simple spring action on the be filtered to provide a linear voltage that is pro-
The MA800 sensor outputs the digital angle rea- rotary knob to move the magnet closer or further portional to the angle. The PWM has an 8 bit re-
ding via an SPI or SSI interface. This allows for ea- from the sensor. solution and frequency of approximately 3KHz.
sy interface to all types of microcontroller. Adding an RC network to the output provides an
The digital angle is an absolute value with 8 bit re- The graph shows how this may be implemented output voltage over the range from 0 to the chips
solution between 0 and 360 mechanical degrees, in practice, with a change in position of 0.9mm supply voltage of 3.3V.
and because it is absolute, the position informati- causing the MGH signal to change from logic 0
on is always true even after power is cycled. to logic 1. For a 0 to 5V application the RC network can be
buffered by a simple OP-AMP circuit to give a
Some rotary interfaces also require a push but- The MA820 version of the sensor also features a wider output voltage range.
ton functionality to implement program selection programmable incremental ABZ encoder inter-
– for example to scroll through a set of radio sta- face. This provides 2 channels A and B of quadra- Configuration parameters are automatically sto-
tions and then select the one you wish to listen ture encoded signals with a programmable num- red in the MA800 devices non-volatile memory
to. In the past this has only been possible by ad- ber of pulses per channel for each full turn. The whenever a register is written via the SPI inter-
ding further mechanical complexity in the form pulses per channel can be set from 1 to a maxi- face. The non-volatile memory provides storage
of a contacting switch. mum of 64 per revolution. The 90 deg quadratu- for the reference zero angle position and the
re spacing of the two channels also provides di- magnetic field detection thresholds.
The MA800 family provides the possibility to im- rection of turn information.
plement a push or pull button function by having The MA800 family operates from a 3.3V supply
programmable magnetic field strength thres- and is packaged in a 3x3mm QFN package. Ope-
holds which detect the distance of the magnet B (mT) rating temperature is -40 to +125°C.
200
0.6mm
180
The unique flexibility of the MA8xx family provi-
3.3V Button
160
Pressed des designers with an innovative way to improve
140 reliability in rotary interface applications, whilst
1μF MGH=1
120 at the same time adding increased functionality
N S
Treshold to the end user experience. Its small size and cost
100
MA8xx VDD 1.5mm
CS MGH=0 Normal effectiveness make it suited to a wide variety of
80
SPI Position
CLK Interface consumer and industrial and automotive appli-
60
MOSI 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
cations.
Air gap (mm)
A
Encoder PWM
B PWM Interface
Interface Figure 4: Push Button detection B(mT) v air gap Contact MPS for further details:
Z
Push www.codico.com
MGH
Button An index pulse output (Z) is provided to reference www.monolithicpower.com
MGL Interface
GND the knobs zero position. The zero reference can A14
be set during system production and program- u Thomas Berner, +49 89 130 143815
Figure 3: Typical System interfaces med into the non-volatile memory of the device. thomas.berner@codico.com
2016:2 | 23©Sergey Nivens & Germán Ariel Berra - Fotolia.com
24 | 2016:2
IMPULSE | ACTIVE COMPONENTSCO-EXHIBITOR SPECIAL
Visit us @
.507
booth A5
POWER
REVOLUTION POWER INTEGRATIONS Revolutionises
Auxiliary and Standby Power Supply Design
with the 900V InnoSwitch-EP Family
When we look at the available switching power topologies there are many synchronous rectification is not straightforward.
types that have evolved to suit specific requirements like higher power, Control circuitry is required to correctly phase
improved efficiency, lower cost or reduced size but few can be considered the drive for the MOSFET on the primary side
revolutionary. The InnoSwitch™ family of power switching ICs from Power with that of the synchronous MOSFET on the se-
Integrations combine new technical innovations in power semiconductors condary side. This control circuit must ensure
that will revolutionise power supply design. that current only flows through one of the tran-
sistors at any given time.
T
his new high voltage CV/CC flyback switching and secondary switching functions, allowing syn-
IC family features an integrated 900V power chronous rectification to be employed, delive- To prevent overlap in the switching of the prima-
MOSFET, synchronous rectification and a precise ring high efficiency without complex control cir- ry (flyback) and synchronous rectification MOS-
secondary-side controller. Like all of the Inno- cuitry (Figure 1). FETs (which would result in highly destructive
Switch families, the new InnoSwitch-EP ICs em- cross conduction), controllers typically introduce
ploy POWER INTEGRATIONS’ high speed magne- Replacing the traditional Schottky diode with a a delay between the turn-off of one transistor
to-inductive communication – termed FluxLink™, MOSFET is the basis of synchronous rectification. and the turn-on of the other.
incorporated into the device package which crea- MOSFETs have a very low on-resistance, RDS
tes a magnetic coupling between the primary (ON), so the voltage drop across the transistor is This »dead-time« must be sufficient to account
and secondary side. FluxLink technology can pro- much lower than for diodes, resulting in a signi- for the variable propagation delays associated
vide very precise control of both of the primary ficant increase in efficiency. However, moving to with the circuitry necessary to drive transistors
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