Low-cost, high-end motor drive performance for e-bikes, drones and robotics with EPC’s GaN FETs | Business

EL SEGUNDO, Calif.–(BUSINESS WIRE)–February 23, 2022–

CPE announces the availability of EPC9167a three-phase BLDC motor drive inverter using the EPC2065 eGaN® FET. The EPC9167 operates from an input supply voltage between 14 V and 60 V (nominal 48 V) and has two configurations – a standard unit and a high current version:

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EPC9167 GaN-Based Inverter Reference Design (Graphic: Business Wire)

  • The EPC9167 standard reference design board is a three-phase BLDC motor drive inverter board with the EPC2065 eGaN FET rated at 3.6 mΩ maximum R DS(on), 80 V maximum device voltage. This configuration standard uses unique FETs for each switch position and can provide a maximum output current of 20 A RMS.
  • A high-current configuration, the EPC9167HC, version of the reference design uses two FETs in parallel per switch position with the ability to supply up to 42 Apk (30 A RMS) of maximum output current.

Both versions of the EPC9167 contain all the critical function circuitry needed to support a complete motor drive inverter, including grid drivers, regulated auxiliary power rails for maintenance supplies, voltage and temperature detection, accurate current detection and protection functions. The boards also feature the ST Microelectronics, STDRIVEG600intelligent motor drive GaN half-bridge driver.

The EPC9167 boards are only 130mm x 100mm (including connector). The boards can also be configured for multi-phase DC-DC conversion and support phase and leg shunt current sensing.

Main advantages of a GaN motor drive are featured with these reference design boards, including lower distortion for lower acoustic noise, lower current ripple for reduced magnetic loss, lower torque ripple for improved accuracy, and lower filtering for a lower cost. The reduced weight and size of the EPC9167 boards allow the drive to be incorporated into the motor housing and support lower inductance and higher power density motors.

EPC provides complete demo kits, which include interface boards that connect the inverter board to the controller board development tool for rapid prototyping that reduces design cycle times.

The default setting of the GaN-based motor driver kit is a switching frequency of 100 kHz and a dead time of 14 ns. While the kit is designed to be programmed for different frequencies and dead times, high frequency operation around 100 kHz allows the elimination of electrolytic capacitors and the use of lower capacitance, and reduces motor losses. Running the boards with a very low dead time of around 14 ns allows for higher torque per amp. The joint effect is to improve the system efficiency of the inverter and motor by more than 7% compared to a silicon MOSFET solution which typically operates at 20 kHz and 500 ns dead time.

“GaN-based inverters increase motor efficiency while reducing cost and delivering the same performance as an expensive motor using a silicon MOSFET-based inverter,” said Alex Lidow, CEO of EPC. “This allows for smaller, lighter, quieter motor systems with more torque, more range and greater precision.”

Price and availability

The EPC9167 reference design board is priced at $611.58 and the EPC9167HC reference design is priced at $678.78. Both are available for immediate delivery from Digi-Key at https://www.digikey.com/en/supplier-centers/epc

About EPC

EPC is the leader in gallium nitride (eGaN ® ) power management. eGaN FETs and ICs provide far superior performance to the best silicon power MOSFETs in applications such as DC-DC converters, remote sensing technology (lidar), engines for eMobility, robotics and drones, and low cost satellites.

Visit our website: www.epc-co.com

Follow EPC on social media: LinkedIn, Youtube, Facebook, Twitter, instagram, YouKu

eGaN is a registered trademark of Efficient Power Conversion Corporation, Inc.

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CONTACT: Effective Power Conversion:

Renee Yawger

Phone. : +1.908.619.9678

email:[email protected]



SOURCE: efficient power conversion

Copyright BusinessWire 2022.

PUBLISHED: 02/23/2022 09:00 AM / DISK: 02/23/2022 09:02 AM


Copyright BusinessWire 2022.

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