Zero Voltage Switching， Class-D amplifier featuring either the 40-V EPC2014 or the 100-V EPC2007 eGaN FET. The source board is configured in an optional half-bridge topology (for single-ended configuration) or default full-bridge topology (for differential configuration), and include the gate driver(s) and oscillator that ensure operation of the system at 6.78 MHz.
These amplifier boards are available separately as EPC9506 and EPC9507 for evaluation in existing customer systems. The source coil, as well as the device coil, are Rezence (A4WP) compliant and have been pre-tuned to operate at 6.78 MHz. The source coil is class 3 and the device coil is category 3 compliant.
The device board includes a high frequency Schottky diode based full-bridge rectifier and output filter to deliver a filtered unregulated dc voltage. The device board comes equipped with two LED’s, one to indicate the power is being received and a second LED, which indicates that the output voltage has reached the maximum and is above 37 V. The device board can also be configured as a half-bridge rectifier that allows for double output voltage operation. EPC9111 and EPC9112 wireless power transfer demonstration systems are priced at $895.00 each and are available for immediate delivery from Digi-Key.
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