Three phase 130V motor drive reference design

Efficient Power Conversion (EPC has launched a fully configured motor drive inverter reference design for industrial and battery-powered applications.

The EPC91200 is designed for 3-phase brushless DC (BLDC) motor drive applications and features the EPC2305, a 150 V 3.0 mΩ RDS(on) FET built with gallium nitride (GaN). The EPC91200 supports wide voltage ranges from 30 V to 130 V, making it suitable for 80 V and 110 V battery systems commonly used in industrial automation, agricultural machinery, and material handling equipment such as forklifts.

The current capacity of the design supports up to 60 Apk (40 ARMS) maximum output current with a switching frequency of up to 150 kHz. The layout of GaN devices can be challenging, so an optimized PCB layout reduces the resistance and heat generation of the GaN FET for improved performance. The design includes current sensing, voltage monitoring, overcurrent protection, and temperature sensing for robust operation and works with multiple controller boards from leading manufacturers like STMicroelectronics, Texas Instruments, and Microchip.

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The EPC91200 streamlines the development process of a motor drive development with features tailored for quick deployment and evaluation. The 130 x 100 mm design includes a pre-configured shaft encoder/Hall sensor interface and supports Field-Oriented Control (FOC) techniques. Engineers can easily measure critical signals and optimize system performance using built-in test points.

“With the EPC91200, we provide engineers a versatile, off-the-shelf motor drive solution, showcasing the efficiency, reliability, and adaptability of GaN technology in modern power systems,” said Alex Lidow, CEO of EPC.

The EPC91200 reference design boards are priced at $780.00. The EPC2305 is priced at $3.56/ea in 3Ku reels.

The motor drive reference design boards and devices are available for immediate delivery from Digi-Key.