A pair of 50-W Qi-compatible development boards from ST enables rapid wireless charging using the company’s ST Super Charge (STSC) protocol. The STEVAL-WBC2TX50 transmitter and STEVAL-WLC98RX receiver boards accelerate the development of wireless charging for products ranging from medical and industrial equipment to home appliances and computer peripherals.
By employing the STSC protocol, the transmitter board delivers up to 50 W of output power at a faster wireless charging rate than standard protocols used with smartphones and similar devices. The board also supports the Qi 1.3 5-W Baseline Power Profile (BPP) and 15-W Extended Power Profile (EPP) specifications. Onboard components include an Arm Cortex-M0-based transmitter system-in-package, application-specific front end, and MOSFET gate drivers. ST’s STSAFE-A110 secure element provides QI authentication.
Like the transmitter board, the receiver board also offers up to 50 W of charging power, full STSC capability, and BPP/EPP charging. Its adaptive rectifier configuration (ARC) mode extends charging distance by up to 50% to allow lower-cost coils and configuration flexibility. The board’s wireless power receiver IC, based on an Arm Cortex-M3 processor, features a synchronous rectifier power stage that provides a programmable output voltage up to 20 V.
Prices for the STEVAL-WBC2TX50 transmitter and STEVAL-WLC98RX receiver start at $109.03 and $113.93, respectively. Both boards are available from the ST eStore.
STEVAL-WBC2TX50 transmitter product page
STEVAL-WLC98RX receiver product page
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