EPC Introduces Wireless charging Demo System
Efficient Power Conversion Corporation (EPC) has announced a complete demonstration multi-mode wireless power charging kit, the EPC9121. The purpose of the kit is to simplify the evaluation process of using eGaN FETs and ICs for highly efficient multi-mode wireless power charging systems that can cut across any standard used in the receiving units.
There are two emerging wireless power standards to which end products are being built - the Wireless Power Consortium (Qi) standard and the AirFuel Alliance standard.
The Qi standard, based on inductive coupling technology, uses a low frequency (<300 kHz) approach, whereas the AirFuel standard uses a magnetic resonant technology and has both low frequency (100 kHz through 315 kHz) and high frequency (6.78 MHz) requirements.
The 10 W EPC9121 demonstration system has four components: a multi-mode capable EPC9511 source (transmitter or power amplifier) board specifically designed to be compatible with all the wireless standards (it can operate at either high or low frequency); a multi-mode source coil (transmit coil) compatible with both the AirFuel Class 2 standard and Qi (A6)/PMA standards; an AirFuel compatible Category 3 AirFuel device coil (receive coil) with rectifier and DC output; and a Wireless Power Consortium (Qi) and Power Matters Alliance (now AirFuel) compatible device coil (receive coil) with rectifier and DC output.
EPC9121 wireless power charging demonstration system is priced at $907.20 and is available from Digi-Key.
