Based on STWBC-EP digital controller, using BOOST boost input, half-bridge drive design. Comply with Qi1.2.3 specification, can transmit power up to 15W, support 5V, 9V, 12V input. STWBC-EP can implement all the necessary functions for Qi Extended Power Profile transmission power. In addition to effective receiver detection and power control, it also supports extended foreign object detection (FOD) through two-way communication with the receiver, suitable for smartphones, tablets, and portable devices. STWBC-EP provides a plug-and-play firmware to help customers easily integrate into finished products. In addition, it has complete documentation and GUI to support the design.