GaN Talk a blog dedicated to crushing silicon
Term: Boost Converter
2 post(s) found

How to Design a 2 kW 48 V/12 V Bi-Directional Power Module with GaN FETs for 48 V Mild Hybrid Electric Vehicles

How to Design a 2 kW 48 V/12 V Bi-Directional Power Module with GaN FETs for 48 V Mild Hybrid Electric Vehicles
Aug 25 2022

Environmental pressures are creating pressure to quickly adopt newer, cleaner, and more efficient transportation options.  In 2025, 1 in 10 vehicles sold are expected to be a more fuel efficient 48 V mild hybrid.  These systems will require a 48V – 12V bidirectional converter, with power ranging from 1.5 kW to 6 kW. The design priorities for these systems are size, cost, and high reliability. GaN power conversion solutions are perfect to support a 48 V to 12 V bidirectional converter used in these newer models.

A new reference design demo board, the EPC9165, is available to help jump start the design of a 2 kW bi-directional converter.  The EPC9165 is a synchronous buck/boost converter with other supporting circuitry including current sensors and temperature sensor.  The EPC9528 controller board ships with the EPC9165 to incorporate digital control and housekeeping power supply; this board uses the dsPIC33CK256MP503 digital controller from Microchip.

How to Design a 12V-to-60V Boost Converter with Low Temperature Rise Using eGaN FETs

How to Design a 12V-to-60V Boost Converter with Low Temperature Rise Using eGaN FETs
Oct 25 2021

Modern displays, such as laptops and PC monitors, typically require a low power boost converter. In this application, the screen intensity is low to moderate and the converter is operated at light load most of the time, so the light-load efficiency is very important. The low switching loss of eGaN FETs can help address this challenge. This GaN Talk will examine the design of a 12 V to 60 V, 50 W DC/DC power module with low temperature rise using eGaN FETs in the simple and low-cost synchronous boost topology.