Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/143102
Kind Code:
A1
Abstract:
A power supply device is provided with: a resistor 11 for limiting the current supplied from an AC power supply 2; a switching unit 12 connected in parallel with the resistor 11; a rectifier circuit unit 13 connected at a stage subsequent to the resistor 11 and the switching unit 12 and rectifying the AC voltage of the AC power supply 2; a booster circuit unit 14 for boosting the rectified DC voltage; a DC voltage detection unit 15 for detecting the DC voltage output from the booster circuit unit 14; an AC voltage detection unit 19 for detecting the AC voltage of the AC power supply 2; a protection setting unit 16 for comparing a first protection voltage calculated on the basis of the boost level obtained by the booster circuit unit 14 with a second protection voltage calculated on the basis of the AC voltage detected by the AC voltage detection unit 19 and setting one of the first and second protection voltages as a protection voltage; and a control unit 17 for, when the DC voltage becomes less than the protection voltage set by the protection setting unit 16, opening the switching unit 12 to stop boosting by the booster circuit unit 14. This makes it possible to suppress the rush current occurring during the restoration of power.
Inventors:
MAKINO YASUSHI (JP)
OWADA KENTA (JP)
OWADA KENTA (JP)
Application Number:
PCT/JP2015/057198
Publication Date:
September 15, 2016
Filing Date:
March 11, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M7/06; H02M3/155
Foreign References:
| JP2012095511A | 2012-05-17 | |||
| JP2004153890A | 2004-05-27 | |||
| JP2007068338A | 2007-03-15 | |||
| JP2008252966A | 2008-10-16 | |||
| JPH05316640A | 1993-11-26 |
Other References:
See also references of EP 3091651A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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