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News Article

High efficiency wireless power transfer demo boards

Featuring high frequency enhanced mode GaN fets
Efficient Power Conversion Corporation (EPC) has introduced two demo boards for resonant wireless power transfer. The EPC9506 and EPC9507 amplifier boards are based on the company's high frequency gallium nitride transistors, which enable wireless power systems with greater than 75 percent efficiency.

The EPC9506 and EPC9507 are A4WP compliant, Zero Voltage Switching (ZVS), Voltage Mode Class-D wireless power transfer amplifier boards capable of delivering up to 35W into a DC load while operating at up to 6.78MHz. The boards feature the 40V EPC2014 (EPC9506) and the 100V 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.

EPC makes enhancement-mode gallium-nitride-on-silicon (eGaN) FETs as power MOSFET replacements in applications such as DC-DC converters , wireless power transfer , envelope tracking, RF transmission, solar micro inverters, remote sensing technology (LiDAR), and class-D audio amplifiers.�


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