New synchronizing circuit for switching power module with automatic interleaving operation

摘要

New synchronizing circuit with automatic interleaving operation for parelleled converter system is proposed. The synchronizing circuit automatically detects the number of converters and adjusts phases between converter modules equally. It is simple analog circuit, which is easily implemented to conventional PWM controller IC. Principle of the synchronizing circuit is introduced, and influence of non-ideal circuit parameters on interleaving operation are discussed. Experimental results are given to confirm analytical results.