Title:
Electric power unit
Document Type and Number:
Japanese Patent JP6254868
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a power supply capable of improving power conversion efficiency at a light load time according to the voltage fluctuation of an AC current input while securing a blackout retention time.SOLUTION: A power supply includes: a rectification part for rectifying an AC input; a power factor improvement part for improving a power factor of power rectified by the rectification part; a power conversion part for converting the power supplied through the power factor improvement part into desired power; an input voltage monitoring part for monitoring the magnitude of a voltage fluctuation of the AC input; an output load monitoring part for monitoring the load; and a control part for controlling the voltage of the power supplied to the power conversion part through the power factor improvement part, on the basis of the monitoring result of the input voltage monitoring part and the monitoring result of the output load monitoring part.
Inventors:
Toshiyuki Watanabe
Kanemaru Shingo
Kanemaru Shingo
Application Number:
JP2014027762A
Publication Date:
December 27, 2017
Filing Date:
February 17, 2014
Export Citation:
Assignee:
Shindengen Industry Co., Ltd.
International Classes:
H02M7/12; H02M3/28
Domestic Patent References:
| JP2013021861A | ||||
| JP2013038850A | ||||
| JP2001069748A | ||||
| JP2012249363A | ||||
| JP2013063003A |
Foreign References:
| WO2010109694A1 |
Attorney, Agent or Firm:
Sumio Tanai
Yasushi Matsunuma
Toshio Komuro
Yasushi Matsunuma
Toshio Komuro