400W GaN motor reference design for e-mobility

May 05, 2021 // By Nick Flaherty
400W GaN motor reference design for e-mobility
The EPC9146 GaN power reference design from EPC is aimed at three-phase motor drives

EPC has developed a 400W three phase motor drive reference design using its monolithic gallium nitride (GaN) transistors for higher efficiency and smaller size.

The EPC9146 is aimed at three-phase motor drive designs for robotics, drones and e-mobility applications such as electric scooters as well as multiphase interleaving buck converters and full bridge converter.

The design consist of the EPC9146 power board with three independently controlled half-bridge GaN circuits that can be paired with individually designed mating boards allowing the user to control the power board directly through various mainstream microcontroller boards for faster development times.

The power board uses the EPC2152 monolithic GaN ePower Stage with integrated gate driver, 80 V maximum device voltage, 15 A (10 A RMS) maximum output current with rise and fall times down to 1 ns. The inverter board measures just 81 mm x 75 mm and achieves an efficiency of greater than 98.4 percent at 400 W output power.

A full kit, EPC9146KITA, which also includes the microcontroller mating board featuring Microchip’s dsPIC33EP- MC digital signal controller (DSC), is available for immediate shipment.


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