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Modern agricultural techniques have been revolutionized by the integration of unmanned aerial- vehicle (UAV) drones, which are low-voltage battery-operated aircrafts. Smaller drones are utilized for terrain mapping and vegetation monitoring, while heavier, more robust variants are employed for tasks such as spraying and distributing fertilizers and insecticides as well as disseminating seeds and feed with payloads up to 50 kg loads. GaN-based inverters prove to be suitable for UAV agricultural drones since they extend the battery life by improving motor efficiency, courtesy of the higher PWM frequency with sinusoidal excitation. In addition to the efficiency considerations, the higher PWM frequency contributes to a reduction in the dimensions of the DC link, thereby reducing the size and weight of the inverter, which is vital in lightweight aircrafts.
Bodo’s Power Systems
EL SEGUNDO, Calif.— March 2023 – Efficient Power Conversion (EPC), the world’s leader in enhancement-mode gallium nitride FETs and ICs, has teamed up with SHARGE Technology (SHARGE) to design a 67 W USB PD charger with a power display screen. The Retro 67 fast charger uses EPC’s 100 V GaN FET, EPC2218, which can deliver 231 A pulsed current in a tiny footprint of 3.5 mm x 1.95 mm offering designers a significantly smaller, more efficient device than silicon MOSFET for USB PD fast chargers.
EPC2218 provides SHARGE’s All-GaN fast charger with higher efficiency, state-of-the-art power density and lower system cost.
EPC and Richtek introduce a reference design that achieves greater than 98% efficiency using the RT6190 buck boost controller and EPC2204 EPC GaN FETs
EL SEGUNDO, Calif.— January 2023 — EPC & Richtek announces the availability of a 4-switches bidirectional buck-boost controller reference design board that converts an input voltage of 12 V - 24 V to a regulated 5 V - 20 V output voltage and delivers up to 5 A continuous current and 6.5 A maximum current. The combination of the new Richtek RT6190 controller with ultra-efficient EPC2204 GaN FETs from EPC shrinks the solution size by greater than 20% compared to traditional solutions for high-power density applications. The solution achieves greater than 98% efficiency for 20 V and 12 V output voltage and can operate without heatsink with maximum rise temperature below 15 degC for 20 V to 5 V, and 55 degC for 12 V to 20 V, at 5 A continuous current.
Richtek, the global leading analog IC design company has teamed up with EPC, the leading provider of gallium nitride (GaN)-based power management technology to launch a new reference design for fast charging applications, achieving high power density and up to 98% efficiency.
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