FULL BRIDGE PHASE SHIFTED POWER SUPPLY WITH SYNCHRONOUS RECTIFICATION AND CURRENT DOUBLER AND METHOD FOR DYNAMICALLY ADJUSTING DELAY PARAMETERS THEREOF

摘要

A full bridge phase shifted power supply with synchronous rectification and current doubler and method for dynamically adjusting delay parameters thereof mainly have multiple delay parameter combinations respectively varying with multiple loads and embedded in a controller of the power supply. The delay parameter combinations serve to determine driving waveforms of two rectification switches of a synchronous rectification and current doubler circuit of the power supply. When the load of the power supply varies, the controller dynamically performs a corresponding delay parameter combination so as to vary the driving waveforms of the rectification switches of the synchronous rectification and current doubler circuit and enhance the operating efficiency of the power supply.