Research on multi-module parallel current equalization technology for high-power phase shifting full-bridge converters

DC/DC converter parallel power systems are widely used in high-power applications. However, the hardware parameter differences and communication time between modules can cause problems for current equalization of multiple modules. This paper summarizes analyzes several methods based on phase-shifted full-bridge circuits The working principles these analyzed, their respective advantages disadvantages given. Meanwhile, traditional three-loop method, an improved control method is proposed, which improves dynamic response system ensures operation efficiency supply precision effectiveness also verified by simulation.