Title:
POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2016073102
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that in a conventional power supply device having a secondary battery, rush current occurs when the secondary battery is connected, thereby, a switch for connecting the secondary battery to a load is deteriorated or destroyed.SOLUTION: A power source device for supplying power to a load from a secondary battery when an external power supply is stopped includes: a plurality of switching devices arranged in parallel having different tolerated dose between the secondary battery and the load; and a connection circuit for turning ON the plurality of switching devices on different timings when the external power supply is stopped.SELECTED DRAWING: Figure 4
Inventors:
SHIMIZU HIROAKI
AOKI ISAMU
WATANABE HIROKI
MOCHIZUKI SHUN
AOKI ISAMU
WATANABE HIROKI
MOCHIZUKI SHUN
Application Number:
JP2014200594A
Publication Date:
May 09, 2016
Filing Date:
September 30, 2014
Export Citation:
Assignee:
FDK CORP
International Classes:
H02J1/00; H02J9/06
Domestic Patent References:
| JP2009183139A | 2009-08-13 | |||
| JP2007236012A | 2007-09-13 | |||
| JPH09322396A | 1997-12-12 | |||
| JPH0946925A | 1997-02-14 | |||
| JP2010178501A | 2010-08-12 | |||
| JP2013135564A | 2013-07-08 |
Attorney, Agent or Firm:
Furuya Fumio
Toshihide Mori
Toshihide Mori