Wireless Power Receiver Compliant with WPC

The RT1653T is a wireless power receiver compliant with WPC V1.2.4 standard. The RT1653T integrates a synchronous full-bridge rectifier, a low dropout regulator, and a Micro Controller Unit (MCU) for control and communication. The device receives AC power from a WPC compatible wireless transmitter and provides output power up to 15W, which could be used as a power supply for a charger of mobile or consumer devices.

The MCU-based controller can support bi-direction channel communication including Frequency Shift Keying (FSK) demodulation for power signal from the transmitter and Amplitude Shift Keying (ASK) modulation for power signal to the transmitter. The Foreign Object Detection (FOD) function is implemented in the RT1653T, and this function is certified by WPC V1.2.4 standard. It communicates with the transmitter for the received power to determine if a foreign object is present within the magnetic interface. This provides a higher level of safety.

The RT1653T provides a programmable dynamic rectifier voltage control function to improve power efficiency, a programmable power management control for maximum power delivery, a programmable current limit for suitable load setting, a programmable temperature setting with external NTC for thermoregulation, and proper protection functions such as UVLO, OVP, and OTP.