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GaN-Based Low-Voltage Inverter for Electric Scooter Drive System

GaN-Based Low-Voltage Inverter for Electric Scooter Drive System

This paper deals with the application of the latest generation low voltage (up to 80 V) Gallium Nitride (GaN) devices for motor drive applications in the field of electric micro-mobility. A two-level inverter topology oriented to light electric traction (such as electric scooters) with a power rate of 1500 W has been considered. An experimental board using two GaN FETs in parallel connection for each switch of an inverter leg has been arranged. The intrinsic parameters spread of the device, as well as the leakage inductances of both the circuit and the PCB, to evaluate the impact on the current share during both the transient phase and in the steady state have been investigated. In the paper, several simulation runs have been carried out and described. Furthermore, the inverter experimental board has been used to evaluate the phase voltages and currents at different load conditions. Finally, the temperature limits versus phase current variation have been evaluated.

IEEE 2022 AEIT International Annual Conference (AEIT)
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EPC Launches a New Generation of eGaN Technology that Doubles Performance

EPC Launches a New Generation of eGaN Technology that Doubles Performance

Efficient Power Conversion (EPC) introduces the 80 V, 4 mOhm EPC2619 GaN FET in tiny 1.5 mm x 2.5 mm footprint, offering higher performance and smaller solution size than traditional MOSFETs for high power density applications, including DC-DC conversion, motor drives, and synchronous rectification for 12 V – 20 V.

EL SEGUNDO, Calif.— November 2022 — EPC, the world’s leader in enhancement-mode gallium nitride (GaN) power FETs and ICs, launches the 80 V, 4 mOhm EPC2619. This is the lead product for a new generation of eGaN devices that have double the power density compared to EPC’s prior-generation products.

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Podcast: How is GaN Powering Wireless Charging Advances?

Podcast: How is GaN Powering Wireless Charging Advances?

Join host Dr. Sanjay Gupta and guest Alex Lidow, CEO of Efficient Power Conversion – or EPC – in episode 5 as they explore the ways GaN is advancing the future of wireless charging. As wireless power increases in maturity and adoption, the industry needs solutions that improve performance, efficiency, and user experience. Gallium Nitride is essential to enabling higher power applications than can be achieved with traditional silicon, opening the door for charging multiple devices and more diverse devices, such as laptops, drones, robots, power tools, eBikes, and industrial equipment. Wireless charging circuits employing GaN transistors are also five to ten times smaller than silicon devices able to handle the same power levels.

AirFuel Alliance
May, 2022
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GaN ICs Shrink Motor Drives for eBikes and Drones

GaN ICs Shrink Motor Drives for eBikes and Drones

The EPC9173 GaN-based inverter reference design enhances motor system size, performance, range, precision, torque, all while simplifying design for faster time-to-market. The extremely small size of this inverter allows integration into the motor housing resulting in the lowest EMI, highest density, and lowest weight.

EL SEGUNDO, Calif.— June, 2022 — EPC announces the availability of the EPC9173, a 3-phase BLDC motor drive 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 input supply voltage between 20 V and 85 V and can deliver up to 50 Apk (35 ARMS). This voltage range and power level makes the solution ideal for a variety of motor drive applications including e-bikes, scooters, city cars, drones, and robotics.

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Benchmark Power Density Achieved Using “All-GaN” Design for Universal Input USB PD3.1 Ultra-Fast Charger Reference Design Delivering 240 W

Benchmark Power Density Achieved Using “All-GaN” Design for Universal Input USB PD3.1 Ultra-Fast Charger Reference Design Delivering 240 W

The EPC9171 evaluation board converts 90 – 265 V universal AC input to a DC output voltage adjustable over a wide range of 15 V through 48 V. This reference design can supply 240 W maximum output power at 48 V output voltage and 5 A load current. 

EL SEGUNDO, Calif.— March, 2022 — EPC announces the availability of the EPC9171, a 90 V – 260 V universal AC input to 15 V – 48 V DC output power supply designed for USB PD3.1 ultra-fast chargers. This reference design can deliver 240 W maximum output power at 48 V output voltage and 5 A load

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Premium Motor Drive Performance at Low Cost for e-bikes, Drones, and Robotics with GaN FETs from EPC

Premium Motor Drive Performance at Low Cost for e-bikes, Drones, and Robotics with GaN FETs from EPC

The EPC9167 GaN-based inverter reference design enhances motor system performance, range, precision, torque, all while lowering overall system cost. The extremely small size of this inverter allows integration into the motor housing resulting in the lowest EMI, highest density, and lowest weight.

EL SEGUNDO, Calif.— February, 2022 — EPC announces the availability of the EPC9167, a 3-phase BLDC motor drive inverter using the EPC2065 eGaN® FET. The EPC9167 operates from an input supply voltage between 14 V and 60 V (nominal 48 V) and has two configurations – a standard unit and a high current version:

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Low-Cost Motors Match Premium Motor Drive Performance with eGaN FETs for eBikes, eMotion, Drones, and Robots

Low-Cost Motors Match Premium Motor Drive Performance with eGaN FETs for eBikes, eMotion, Drones, and Robots

The EPC9145 GaN-based inverter enhances the performance of the motor for range, precision, torque, and, as a bonus, eliminates the electrolytic capacitors for lower overall system cost and higher reliability. The extremely small size allows integration into the motor housing for the lowest EMI, highest density, and lowest weight.

EL SEGUNDO, Calif.— November, 2021 — EPC announces the availability of the EPC9145, a 1 kW, 3-phase BLDC motor drive inverter using the EPC2206 eGaN® FET

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