The EPC91104 provides a versatile reference design, with optimized PCB layout, for wide input voltage range motor drive applications
EL SEGUNDO, Calif.— January 2025 — Efficient Power Conversion Corporation (EPC), the world leader in enhancement-mode
gallium nitride (eGaN®) power devices announces the launch of the EPC91104, a high-performance 3-phase
BLDC motor drive inverter reference design. This innovative design is ideal for powering compact, precision motors in humanoid robots, such as those used for
wrist, finger, and toe movements.
Tailored for Humanoid Robotics and Beyond
The EPC91104 evaluation board uses the EPC23104 ePower™ Stage IC, offering a maximum RDS(on) of 11 mΩ and
supporting DC bus voltages up to 80 V. The design supports up to 14 Apk steady-state and 20 Apk pulsed current, ensuring reliable performance for humanoid
robot applications that require fine motor control and precision.
Key Features of the EPC91104
- Wide Voltage Range: Operates between 14 V and 80 V, accommodating a variety of battery systems
- Compact Design: Suitable for space-constrained robotics
- Advanced Protection: Includes overcurrent and input undervoltage protection, ensuring reliability in demanding applications
- Optimized Efficiency: Low-distortion switching reduces torque ripple and motor noise
Humanoid robots demand motors with precision and compactness, and the EPC91104 is specifically designed to meet those needs for applications like small joint actuation,
said Alex Lidow, CEO of EPC
EPC9176 for Higher Power Applications
For higher-current requirements, such as elbow and knee motors in humanoid robots, EPC offers the EPC9176 board in the
same family. With enhanced current capacity, the EPC9176 complements the EPC91104 to cover a full range of motor drive applications in humanoid robotics.
Ready for Development
The EPC91104 is compatible with controller boards from leading manufacturers, including Microchip, Texas Instruments, STMicroelectronics, and Renesas, offering engineers
flexibility in development. It is equipped with comprehensive sensing and protection features, ensuring rapid prototyping and testing.
Price and Availability
The EPC91104 reference design boards are priced at $780.00.
The EPC23104 is priced at $2.50/ea in 3Ku reels.
Reference design boards and devices are available for immediate delivery from Digi-Key at www.digikey.com/en/supplier-centers/epc
About EPC
EPC is the leader in enhancement mode gallium nitride (eGaN®) based power management. eGaN FETs and integrated circuits provide performance many times greater than the
best silicon power MOSFETs in applications such as DC-DC converters,
remote sensing technology (lidar), motor drives for eMobility,
robotics, and drones, and low-cost satellites.
Visit our website: epc-co.com
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eGaN is a registered trademark of Efficient Power Conversion Corporation, Inc.
Press contact
Efficient Power Conversion:
Renee Yawger
Tel: +1.908.619.9678
Email: [email protected]