Isolated DC-DC Converters for xEVs Minimize Noise Design Countermeasures

ROHM Semiconductor introduced the BD7Fx05EFJ-C isolated flyback DC-DC converter (BD7F105EFJ-C, BD7F205EFJ-C) optimized for gate drive power supplies in xEV applications, such as electric compressors and PTC heaters. In recent years, xEVs such as hybrid and electric vehicles have become increasingly popular as the industry moves towards achieving a sustainable society. xEVs, which primarily use electricity as their energy source, are equipped with unique applications such as electric compressors for AC, and PTC heaters to raise the cabin temperature.

ROHM’s new product uses a circuit configuration that achieves stable switching frequency characteristics without requiring a photocoupler, decreasing application size together with the workload needed for noise design countermeasures.