EPC9510 : 100 V ZVS Class-D amplifier board for
wireless power transfer systems
The EPC9510 is a high efficiency, Zero Voltage Switching (ZVS), class-D wireless power amplifier
demonstration board that operates at 6.78 MHz (Lowest ISM band). The purpose of this demonstration system is
to simplify the evaluation process of wireless power amplifier technology using eGaN® FETs by
including all the critical components on a single board that can be easily connected into an existing
system.
The amplifier board features the enhancement-mode, half-bridge field effect transistor (FET), the 100 V rated
EPC2107 eGaN FET with
integrated synchronous bootstrap FET.
The amplifier can be set to operate in either differential mode or single-ended mode and includes the gate
driver/s, oscillator, and feedback controller for the pre-regulator that ensures operation for wireless
power control based on the A4WP standard. This allows for testing compatible to the A4WP class 2 standard
over a load range as high as ±35j Ω. The pre-regulator features the 100 V rated 65 mΩ EPC2036 as the main
switching device for a SEPIC converter.