Title:
交流/直流変換電源装置
Document Type and Number:
Japanese Patent JP4478799
Kind Code:
B2
Abstract:
To provide an AC/DC converting power supply for improving a waveform of an input current, having a power factor of 1 or a slightly advanced power factor, and simplifying a control pulse.
A power supply frequency is resonated by connecting a magnetic energy regenerative switch comprising four reversely conducting semiconductor switches and an energy storage capacitor to a reactor and an AC power supply in series and turning on/off the switch in synchronization with an AC voltage. If a resonance voltage is extracted by a diode rectifying circuit, a DC voltage higher than the AC input voltage is obtained, and an input current has less harmonic component and the improved power factor.
COPYRIGHT: (C)2007,JPO&INPIT
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Inventors:
Ryuichi Shimada
Application Number:
JP2005364452A
Publication Date:
June 09, 2010
Filing Date:
December 19, 2005
Export Citation:
Assignee:
National University Corporation Tokyo Institute of Technology
International Classes:
H02M7/12; A01G7/00; H05B37/02; H05B41/282
Domestic Patent References:
| JP10084670A | ||||
| JP2003333852A | ||||
| JP2004319583A | ||||
| JP2000358359A |
Foreign References:
| WO2004017151A1 |
Attorney, Agent or Firm:
Yuzo Agata
Sadayoshi Igarashi
Susumu Kitano
Daisuke Ishii
Sadayoshi Igarashi
Susumu Kitano
Daisuke Ishii