Enhancing Motor Drives Performance in High-Voltage Battery Applications with GaN Technology

The GaN-based EPC91200 delivers a versatile reference design with an optimized PCB layout, tailored for motor drive applications spanning a wide input voltage range.

Efficient Power Conversion Corporation (EPC), a global leader in enhancement-mode gallium nitride (eGaN®) power devices, has unveiled the EPC91200, an advanced motor drive inverter reference design. This fully configured GaN-based solution is engineered to deliver outstanding performance and adaptability for a wide range of industrial and battery-powered applications.

Specifically designed for 3-phase brushless DC (BLDC) motor drive systems, the EPC91200 features the EPC2305, a state-of-the-art 150 V GaN FET with an ultra-low RDS(on) of 3.0 mΩ. Supporting an extensive input voltage range from 30 V to 130 V, the EPC91200 is well-suited for 80 V and 110 V battery systems commonly found in industrial automation, agricultural machinery, and material handling equipment such as forklifts.

Key features and benefits include:

High Current Capability: Provides up to 60 Apk (40 ARMS) maximum output current with a switching frequency of up to 150 kHz, meeting demanding performance requirements.
Superior Efficiency: Employs advanced GaN technology and an optimized PCB layout to minimize resistance, reduce heat generation, and maximize overall system efficiency.
Integrated Protection and Monitoring: Includes essential features like current sensing, voltage monitoring, overcurrent protection, and temperature sensing to ensure reliable and safe operation.
Broad Compatibility: Compatible with various controller boards from leading manufacturers, including STMicroelectronics, Texas Instruments, and Microchip, enabling seamless integration.

Engineered for rapid development and evaluation, the EPC91200 simplifies the design process with features tailored for ease of use. Its compact form factor (130 x 100 mm) includes a pre-configured shaft encoder/Hall sensor interface and supports advanced control techniques such as Field-Oriented Control (FOC). The integrated test points allow engineers to monitor critical signals and fine-tune system performance effortlessly.

With its exceptional combination of performance, versatility, and ease of integration, the EPC91200 is an ideal solution for engineers developing next-generation motor drive systems in diverse applications.