EPC EPC91132 3-Phase Motor Drive Inverter Eval Board
Efficient Power Conversion (EPC) EPC91132 Evaluation Board is a three-phase BLDC motor drive inverter board that features the EPC33110 three-phase co-packaged module. The module integrates three monolithic gallium nitride (GaN) half-bridges, each with integrated gate drivers, level shifters, and bootstrap circuits. The EPC91132 board provides an optimized form factor ideal for 23mm drone motors and for the small joints used in humanoid robots. The EPC33110 delivers up to 16Apk (11ARMS) steady-state output current and up to 21Apk (15ARMS) pulsed output while inserted inside the motor chassis. The EPC91132 inverter eval board from EPC includes all the necessary critical function circuits to support a complete motor-drive inverter, such as housekeeping power supplies, accurate voltage and current sense, NTC temperature sensing, microcontroller, motor shaft angular sensor, SWD connector, and RS485 interface.
Features
- Three-phase inverter based on EPC33110 three half-bridges co-packaged with wide input DC voltage range of 10V to 60V
- Housekeeping power supplies for 5.2V and 3.3V
- Dimensions
- 23mm diameter inverter
- 55mm x 50mm with external PCB ring
- 44mV/A phase current sense gain
- 50.87mV/V DC bus voltage sense gain
- 1024 pulses per revolution (PPR) encoder default resolution with Z index
- SPI communication with encoder
- Onboard NTC temperature sensing
- RS485 communication interface
- PWM ESC control
Applications
- BLDC motor drives
- E-mobility
- Drones
- Robotics, including humanoid wrist joints
Block Diagram
Additional Resources
Related ICs
EPC EPC33110 3-Phase ePower™ Stage IC
Co-packaged with integrated gate drivers, level shifters, and bootstraps for compact motor control.