With the increase in government mandates to combat climate change, automakers are moving quickly to leverage new technology to respond by switching from the internal combustion engine to electric-drive vehicles. This article presents the design of a 2 kW, two-phase 48 V/12 V bi-directional converter using GaN FETs that achieves 96% efficiency and is targeted for the 48 V mild hybrid system.

PSD North America
March, 2023
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An exploration of a GaN-based design of a 2 kW 48V/12V bi-directional power module for 48 V mild hybrid electric vehicles.

Electronics Today
January, 2023
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A bidirectional converter developed by gallium nitride specialist EPC in collaboration with MPS operates at an advertised peak efficiency of 97 percent.

EETimes
February, 2022
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This article presents the design and performance of an automotive buck/reverse-boost converter with GaN for efficient 48 V power distribution.

Electronics Today
December/January Edition
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The EPC9170 is a two-phase, regulated output voltage, 48 V – 14 V bidirectional converter that delivers 2 kW with 96.8% peak efficiency

EL SEGUNDO, Calif.— January 2022 — EPC announces the availability of the EPC9170, a 2 kW, two-phase 48 V – 14 V bidirectional converter that operates with 96.8% peak efficiency in a small footprint. The board features the ePower™ 100 V, 65 A integrated circuit chipset. The chipset includes the EPC23101 eGaN^® IC plus EPC2302 eGaN^® FET for a solution capable of a maximum withstand voltage of 100 V, delivering up to 65 A load current, while capable of switching speeds greater than 1 MHz.

The EPC9163 is a two-phase, 48 V – 12 V bidirectional converter that delivers 2 kW with 96.5% efficiency in small solution size for mild-hybrid cars and battery power backup units.

EL SEGUNDO, Calif.— November, 2021 — EPC announces the availability of the EPC9163, a 2 kW, two-phase 48 V – 12 V bidirectional converter that operates with 96.5 % efficiency in a very small footprint. The design of this demonstration board is scalable; that is, two converters can be paralleled to achieve 4 kW or three converters can be paralleled to achieve 6 kW. The board features eight EPC2218 100 V eGaN^® FETs and is controlled by a module that includes the Microchip dsPIC33CK256MP503 16-bit digital controller.