Wireless charging will be a fast-growing segment of the power electronics industry in 2013. Significant developments began accelerating last year. The “Top 10” developments selected by the PowerPulse editors highlight important trends in wireless charging that will continue in 2013 and beyond.

EPC announced a high efficiency wireless power demonstration system utilizing the high frequency switching capability of gallium nitride transistors. eGaN® FETs from EPC are well suited for these systems because of their ability to operate efficiently at high frequency, voltage, and power. This wireless power demonstration system jointly developed by EPC and WiTricity is a class-D power system operating at 6.78 MHz, and capable of delivering up to 15 W to a load. The purpose of this demonstration system is to simplify the evaluation process of the wireless power technology. The system includes all the critical components in a single system that can be easily connected to demonstrate the powering of a device with wireless energy transfer.

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