Title :
Voltage-source charge-pump power-factor-correction AC/DC converters
Author :
Qian, Jinrong ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
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,
Keywords :
AC-DC power convertors; bridge circuits; power factor correction; rectifying circuits; 12 V; 250 W; 83.5 percent; clamping technique; design considerations; half-bridge power convertors; rectifiers; steady-state analysis; unity power factor condition; voltage-source charge-pump power-factor-correction AC/DC power converters; Charge pumps; Circuits; Costs; DC-DC power converters; Power system harmonics; Reactive power; Steady-state; Switches; Switching converters; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
