POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To reduce power consumption in a rectifying and smoothing circuit.SOLUTION: A power supply device having a rectifying section 3 for rectifying an AC voltage, and a smoothing section 4 for smoothing the voltage rectified by the rectifying section 3 includes: a switch section 2 w...

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Bibliographic Details
Main Author MUROFUSHI MITSUHIDE
Format Patent
LanguageEnglish
Japanese
Published 20.08.2015
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CINEMATOGRAPHY
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
GENERATION
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To reduce power consumption in a rectifying and smoothing circuit.SOLUTION: A power supply device having a rectifying section 3 for rectifying an AC voltage, and a smoothing section 4 for smoothing the voltage rectified by the rectifying section 3 includes: a switch section 2 which supplies/cuts off an AC voltage to be supplied to the rectifying section 3; a power voltage charging section 8 which is charged with a voltage corresponding to the AC voltage; and a switch control section 9 which controls the switch section 2, according to the voltage charged on the power voltage charging section 8. 【課題】整流平滑回路における消費電力を低減すること。【解決手段】交流電圧を整流する整流部３と、整流部３により整流された電圧を平滑する平滑部４と、を備える電源装置であって、整流部３に交流電圧の供給を接続又は切断するスイッチ部２と、交流電圧に応じた電圧により充電される電源電圧充電部８と、電源電圧充電部８に充電されている電圧に応じてスイッチ部２を制御するスイッチ制御部９と、を有する。【選択図】図２
Bibliography:Application Number: JP20140022546