New gallium nitride chips increase efficiency of wireless power systems
DOI: 10.1063/PT.5.029045
MIT Technology Review : Earlier this week, microchip maker Efficient Power Conversion (EPC) announced a new line of microprocessors made using gallium nitride transistors. The new chips are specifically designed for wireless power transfer systems such as those used for charging mobile devices. Wireless power transfer has been available for several years now, but the market is split between two standards and is limited by cost and efficiency of the systems currently available. EPC’s chips are designed for just one of the two standards, Rezence, which uses magnetic resonance to transfer power from the charger to a portable device. Because gallium nitride semiconductors are more efficient than traditional silicon chips, the number of components in the transfer devices can be reduced, which will lead to smaller devices and lower costs.
