Reference design for NFC wireless charging is based on Panthronics’ PTX100W

Fabless semiconductor company, Panthronics, has released a reference design for a complete NFC wireless charging system based on its PTX100W NFC wireless charging controller.

Manufacturers can use the reference design to implement the hardware and software for an NFC wireless charging system based on the PTX100W-based poller (charging station) and the listener (device), which features a standard NFC tag. Typical applications are portable and wearable devices such as earbuds, smart watches, activity monitoring wristbands and smart glasses.

OEMs integrating NFC wireless charging capability into new product designs can exploit the 1W received power for the listener, afforded by the PTX100W. According to Panthronics, this is twice that of the nearest competitor. It accelerates battery charging.

Other features of the PTX100W is a high tolerance of antenna displacement, which afford a degree of design flexibility and consistent high charging performance. The simple antenna matching circuitry is designed to allow for optimal transmit/receive (Tx/Rx) antenna matching with little development effort.

The reference design provides hardware schematics and Gerber files for both the poller and listener circuits, and separate software development kits (SDKs) for the poller and listener. The SDKs include source code for the NFC protocol software, and firmware for controlling charging operations.

As well as the PTX100W NFC controller, the reference design also includes microcontrollers from Renesas for system control in the poller and listener circuits, and an Infineon NFC tag on the listener side.

The reference design has passed full system validation tests of both the hardware and software. Panthronics offers a customer support service for the entire system, including 24/7 access to applications engineers, online documentation, a Knowledge Base, and a security-protected portal for registered customers.

Engineers may request the PTX100W NFC charging reference design via the company’s website.

Founded in 2014, Panthronics is a fabless semiconductor company headquartered in Graz, Austria. It develops differentiated wireless solutions from the ground up for security and power applications.

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