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Voltage-source charge-pump power-factor-correction AC/DC converters

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2 Author(s)
Jinrong Qian ; Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA ; Lee, F.C.

Voltage-source charge-pump power-factor-correction (VS-CPPFC) AC/DC power converters are proposed in this paper. The PFC converter using the CP concept is first derived. The unity power factor condition is derived and analyzed. The clamping technique is used to satisfy the unity power factor condition. Based on the steady-state analysis, design considerations for the CPPFC stage are discussed. A family of VS-CPPFC topologies is also presented. The proposed VS-CPPFC AC/DC power converter was implemented and tested. The experimental results show that 83.5% efficiency and 0.996 power factor can be achieved for a half-bridge CPPFC AC/DC converter with 250-W and 12-V output,

Published in:

Power Electronics, IEEE Transactions on  (Volume:14 ,  Issue: 2 )