A new single phase power factor correction rectifier/regulator with DC linked energy feedback circuit is proposed, which is capable of achieving zero voltage switching(ZVS) of the boost pre-regulator stage without any auxiliary power semiconductor switch. The proposed rectifier/regulator gives the good power factor correction(PFC), low current harmonic distortion, and tight output regulation. Moreover, with the proposed scheme, a low cost, high efficiency and high power density single phase rectifier/regulator can be designed, superior to that of a conventional ZVS boost pre-regulator followed by ZVS half-bridge DC/DC converter. Operation of the proposed rectifier/regulator is thoroughly analyzed. Control strategy and implementation are provided in detail. The performance of proposed rectifier/regulator is demonstrated through a 200W, 100kHz prototype. This proposed rectifier/regulator with DC link voltage feedback circuit is particularly suited for multi-module distributed power system applications.
