STMicro 50W High-Power Wireless Transmitter and Receiver Boards are Designed for Medical, Industrial, and Home Applications

STMicroelectronics has introduced the STEVAL-WBC2TX50 transmitter and STEVAL-WLC98RX receiver boards, a powerful wireless charging solution capable of transmitting up to 50W of power. Designed to simplify and accelerate the development of high-power wireless charging applications, these boards address common industry pain points.

The transmitter board supports up to 50W output power with STMicro’s proprietary Super Charge (STSC) protocol, Qi 1.3 BPP, and EPP. The receiver board handles 50W charging via STSC. It supports Qi BPP and EPP, featuring ARC for a 50% longer charging distance and precise Foreign Object Detection  (FOD) with voltage and current measurement.

You can configure the STEVAL-WLC98RX receiver board with the STSW-WPSTUDIO program, and the STEVAL-WBC2TX50 transmitter board with the  STSW-WBC2STUDIO program. These programs offer a user-friendly interface with real-time monitoring of important parameters through UART or USB connections. They also include helpful wizards to simplify tasks like foreign object detection and designing custom coils.

The 50W wireless charging kit opens up possibilities for developing high-power wireless charging applications, such as charging vacuum cleaners, cordless power tools, drones, mobile robots, medical devices for drug delivery, portable ultrasound systems, stage lighting and mobile lighting, printers, and scanners.

STEVAL-WBC2TX50 Transmiter Specifications:

• STWBC2-HP wireless power transmitter chip: Enables efficient power transfer and advanced features.
• STM32G071 Arm Cortex-M0 microcontroller: Provides intelligent control and management of the charging process.
• Versatile front end: Handles signal conditioning, frequency control, and PWM generation, with support for a wide DC voltage range.
• USB Power Delivery compatibility: Ensures seamless integration with a wide range of power sources.
• Optional Qi authentication with STSAFE-A110: Enhances security and compatibility with Qi-certified devices.
• Integrated synchronous boost DC-DC converter: Optimizes power efficiency for the full-bridge inverter.
• Receiver presence detection: Detects the presence of a compatible receiver for efficient power delivery.
• Foreign object detection (FOD): Enhances safety by detecting the presence of foreign objects on the charging surface.
• On-chip thermal management and protections: Ensures reliable operation and protects against over-temperature, over-current, and other faults.
• SWD + UART combined connector: Provides easy access for programming and debugging.

STEVAL-WLC98RX Receiver Specifications:

• Arm Cortex-M3 core: Enables intelligent control and management of the receiving process.
• Integrated high-efficiency synchronous rectifier: Optimizes power conversion and minimizes losses.
• Programmable output voltage: Supports a wide range of devices and applications.
• Qi 1.3 compliance: Ensures compatibility with the latest Qi wireless charging standard.
• Extended power profile (EPP): Delivers up to 15W for faster charging of Qi-certified devices.
• ST Super Charge (STSC) protocol: Supports up to 50W for proprietary fast charging.
• Low voltage drop regulator with protection: Ensures stable output voltage and protects against over-current and under-voltage conditions.
• Adaptive rectifier configuration (ARC): Enhances coil placement flexibility and simplifies design.
• Foreign object detection (FOD): Improves safety by detecting the presence of foreign objects on the charging surface.
• On-chip thermal management and protection: Protects against over-temperature and other faults for reliable operation.

The STEVAL-WLC98RX receiver board is available for $113.93, while the STEVAL-WBC2TX50 transmitter board is priced at $109.03. For further information, please refer to the product pages on the STMicroelectronics website or the official press release.

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