EPC9508 : ZVS Class-D amplifier board for wireless
power transfer systems
EPC9508 is the amplifier (source) board for a ZVS Class-D wireless power transfer system.
The EPC9508 amplifer board features the 65 V rated EPC8009 and the 100 V EPC2007 eGaN FETs in a half bridge topology (for single ended configuration) or full bridge topology (for differential configuration), and includes the gate driver/s and oscillator that ensures operation of the system at 6.78 MHz. The amplfier board can also be operated using an external oscillator.
The amplfier board is equipped with a pre-regulator that limits the current of the supply to the amplifier. The pre-regulator also monitors the temperature of the main amplifier FETs and will reduce current if the temperature exceeds 85°C. The pre-regulator can be bypassed to allow testing with custom control hardware. The board further allows easy access to critical measurement nodes that allow accurate power measurement instrumentation hookup.
Use EPC9512 for new designs