eGaN wireless demo boards operate at 6.78 MHz

The EPC9506 and EPC9507 amplifier demonstration boards suit wireless power transfer for a zero voltage switching (ZVS) Class-D topology. The boards use the high frequency switching capability of gallium nitride (GaN) transistors to facilitate wireless power systems with >75% efficiency. The demo boards target portable device charging with end applications for mobile device charging, to life-extending medical implementations, to safety-critical hazardous environments.

The amplifier demo boards are A4WP compliant, wireless power transfer amplifier (source) boards capable of delivering up to 35 W into a dc-load while operating at up to 6.78 MHz. The boards feature the 40 V EPC2014 (EPC9506) and the 100 V EPC2007 (EPC9507) eGaN FETs. Both boards are configured to operate in either a half-bridge topology (for single-ended configuration) or full-bridge topology (for differential configuration), and include the gate driver(s) and oscillator that ensure operation of the boards at a fixed frequency.