Article By : Efficient Ability Conversion Corp.
The EPC9173 GaN-primarily based inverter reference style boosts motor technique measurement, general performance, variety, precision, torque, all although simplifying design and style for more rapidly time-to-market place.
Productive Electrical power Conversion Corp. (EPC) has introduced the EPC9173, a 3-phase BLDC motor generate inverter using the EPC23101 eGaN IC with embedded gate driver function and a floating power GaN FET with 3.3 mΩ RDS(on). The EPC9173 operates from an enter offer voltage among 20 V and 85 V and can provide up to 50 Apk (35 ARMS). This voltage range and electrical power degree helps make the option great for a range of motor push apps which include e-bikes, scooters, town cars, drones, and robotics.
The EPC9173 consists of all the vital important functionality circuits to guidance a entire motor push inverter which include gate motorists, regulated auxiliary electricity rails for housekeeping supplies, voltage, and temperature sense, accurate latest perception, and safety capabilities.
Big positive aspects of a GaN-based motor drive are exhibited with these reference style boards, which includes considerably less than 30 ns deadtime for very substantial motor + inverter method efficiency for more time variety, lessen distortion for lower acoustic sound, lessen existing ripple for reduced magnetic loss, lower torque ripple for improved precision, and lessen filtering for decrease price tag. The lower weight and measurement of the EPC9173 remedy permits incorporation of the travel into the motor housing and supports low inductance, greater electrical power density motors. When configured for 100 kHz frequency, the enter filter and the selection of capacitors can be drastically diminished, and the electrolytic capacitors can be eradicated from the board.
The use of the EPC23101 integrated GaN-on-silicon unit gives larger performance in a smaller sized footprint with drastically reduced style engineering prerequisites for rapid time to market. The solution allows stage present-day sensing and leg shunt present-day sensing, for most flexibility. EPC offers whole demonstration kits, which contain interface boards that connect the inverter board to the controller board progress software for rapidly prototyping that reduce style cycle times.
The EPC9173 boards evaluate just 130 mm x 100 mm (which include connector). The boards can also be configured for multiphase DC–DC conversion topologies including Buck, Boost, Fifty percent bridge, Full Bridge, or LLC converters.
“Designers can use the GaN IC to make lighter body weight and additional specific battery-operated motor drives for eMotion, robotic arms, and drones,” said Alex Lidow, CEO of EPC. “GaN permits motor devices that are smaller, lighter, significantly less noisy, have much more torque, more variety, and bigger precision.”