Title :
A unified controlled power factor corrected DC/DC topology using magnetizing energy to reduce DC bus voltage
Author :
Xie, Xiaogao ; Zhang, J.M. ; Cai, Yongjun ; Zhaoming Qian
Author_Institution :
Power Electron. Res. Inst., Zhejiang Univ., China
Abstract :
A simple two-stage converter with unified controller is proposed in this paper. The magnetizing current of DC/DC transformer can be used to help reduce the DC bus voltage in light-load conditions. Detailed theoretical analysis is presented. A 240 W prototype based on the proposed topology is built up and experiment results verify the analysis.
Keywords :
DC-DC power convertors; power factor correction; voltage control; 240 W; DC bus voltage reduction; DC-DC topology; light-load conditions; magnetizing energy; unified controlled power factor correction; Capacitors; Circuit topology; Delay effects; Magnetic analysis; Magnetic separation; Power factor correction; Power system harmonics; Reactive power; Switches; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1355555
