News Article
EPC demos GaN wireless powering system
The superior switching speeds of EPC’s gallium nitride FETs increases the efficiency of power electronics for highly resonant wireless power transfer
Efficient Power Conversion Corporation (EPC) is offering a high efficiency wireless power demonstration system utilising the high frequency switching capability of gallium nitride transistors.
The firm's eGaN FETs are an ideal solution for these systems because of their ability to operate efficiently at high frequency, voltage, and power.
Highly resonant wireless power transfer was invented by the founders of WiTricity. WiTricity licenses its intellectual property to companies seeking to build products based on this new technology.
Capable of transferring power over long distances, WiTricity technology enables a wide range of consumer, medical, industrial and automotive applications. Products using highly resonant wireless power transfer can meet stringent regulatory guidelines, and are safe for people and animals.
Many wireless charging products now in the market use traditional magnetic induction coils with operating frequencies between 100-300 kHz, and Class E, F and S amplifier converter topologies Recently, organisations such as the Consumer Electronics Association and A4WP (Alliance for Wireless Power) have called for a higher frequency standard (6.78 MHz) for wireless charging systems.
At higher frequencies, traditional silicon-based power transistors (MOSFETs) approach the limit of their switching capability. EPC’s eGaN FETs offer higher efficiency compared to MOSFETs at these higher frequencies.
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 demonstration system simplifies 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.
The firm's eGaN FETs are an ideal solution for these systems because of their ability to operate efficiently at high frequency, voltage, and power.
Highly resonant wireless power transfer was invented by the founders of WiTricity. WiTricity licenses its intellectual property to companies seeking to build products based on this new technology.
Capable of transferring power over long distances, WiTricity technology enables a wide range of consumer, medical, industrial and automotive applications. Products using highly resonant wireless power transfer can meet stringent regulatory guidelines, and are safe for people and animals.
Many wireless charging products now in the market use traditional magnetic induction coils with operating frequencies between 100-300 kHz, and Class E, F and S amplifier converter topologies Recently, organisations such as the Consumer Electronics Association and A4WP (Alliance for Wireless Power) have called for a higher frequency standard (6.78 MHz) for wireless charging systems.
At higher frequencies, traditional silicon-based power transistors (MOSFETs) approach the limit of their switching capability. EPC’s eGaN FETs offer higher efficiency compared to MOSFETs at these higher frequencies.
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 demonstration system simplifies 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.
