wireless power for iot devices - rutronik · wireless power for iot devices as the internet of...
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www.st.com/wbc
Wireless power for IoT devices
As the Internet of Things (IoT) pervades our everyday life wearable devices represent one of the fastest-growing segments in consumer electronics. Together with mobile phones, the widespread adoption of wireless power is out there: in 2025, more than 2 billion receiver units are expected to be shipped worldwide*.Based on the STWBC-WA transmitter and STWLC04 receiver, ST’s wireless battery charging solution simplifies the design and shortens time-to market.Their minuscule footprint and efficient power transfer, while ensuring maximum safety and reliability are the main advantages that will benefit designers.
Key applications• Ultra-compactportabledevices,like:
• Wearabledevices• Sportsgear• Wellnessandhealthcareequipment• Sensors
Key features & benefits• Boostspowertransferof1Woveranultra-compactcoilof11mmindiameter
• Adaptsthetransmittedpowertoactualloadconditionswithdigitalfeedbacktothetransmittingdeviceforincreasedefficiency
• Enablessafeoperationwithforeignobjectdetection(FOD),andactivepresencedetectionstoppingpowertransferswhenmetallicormagneticobjectsaredetectedinthechargingarea(optionalfeature)
• Scalablesolutionsupportslowpowerapplicationsfrom1to3Wviadifferentcoils
• IdealfordifferentLi-ionandLi-polbatterychemistries
• Graphicaluserinterfaceforsystembehaviormonitoring
Scalable and complete 1 W wireless battery charging solution with Rx and Tx for fast prototyping
*SourceIHS2016
© STMicroelectronics - September 2016 - Printed in United Kingdom - All rights reservedThe STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies
All other names are the property of their respective owners
For more information on ST products and solutions, visit www.st.comOrder code: FLWBC0916
Wireless battery charging solution tailored for portable devices ST’sturnkeysolutionforwirelessbatterychargingisdesignedforultra-compactbattery-operateddevicessuchaswearables,sportsgear,smartwatches,sensorsandwellnessequipment.
TheSTEVAL-ISB038V1referencedesignsupportswirelesspowertransferof1Woveran11mmcoilonthereceiversideand20mmontransmittersideandcanbescaled-upto3Wbyusingwidercoilsorbyswitchingtofull-bridgeconfigurationonthetransmitterside.
TheSTWBC-WAtransmitterisbasedonacost-effectivehalf-bridgetopology(optionalfull-bridge)andprovidesdesignerswithincreasedflexibilitythankstoapowerfulsoftwareAPIwhichallowsmodifyingthebehaviorofLEDandGPIOs,aswellasaddingexternalinterfacesviaI2CandUARTcommunicationports.
TheSTWLC04receivercandelivertheoutputpowerintwomodes:asapowersupplywithconfiguredoutputvoltageorasaCC/CVbatterychargerwithconfigurablechargingcurrentandvoltage.
TheSTEVAL-ISB038V1referencedesignincludesawirelesspowertransmitterboardandawirelesspowerreceiverboardcombinedwithaGUIanddocumentationtoshortenyourtime-to-market.
Theevaluationboardforthetransmitter(STEVAL-ISB038V1T)andthereceiver(STEVAL-ISB038V1R)arealsoavailableseparately.
order code description development environment
steval-isb038v1 Wearable wireless power system based on STWBC-WA and STWLC04 Application note: AN4900
steval-isb038v1t Wearable wireless power transmitter based on STWBC-WAUser manual: UM2099Firmware: STSW-ISB038TFWGraphical user interface: STSW-ISB038TGUI
steval-isb038v1r Wearable wireless power receiver based on STWLC04User manual: UM2098Graphical user interface: STSW-ISB038RGUI
stWbc-Wa Digital controller for wireless battery charger (WBC) transmitters for werable devices Databrief, Gerber files, BOM, schematics
stWlc04 Wireless power receiver for wearable devices Databrief, Gerber files, BOM, schematics
product table
steval-isb038v1: Wearable Wireless poWer system
Transmitter
STWLC04
Receiver
Fron
t
Back
Fron
t
Back
STWBC-WA
Ø 20 mmØ 11 mm
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