Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/181513
Kind Code:
A1
Abstract:
[Problem] To provide a technology of improving efficiency of a power supply device that supplies a load with direct current power. [Solution] A control circuit (140) turns on a switching element (T131) in a set cycle. Consequently, a capacitor (C132) discharges electricity via a parallel circuit of an inductor (L131), a capacitor (C131), and a load (120). Furthermore, the control circuit (140) turns off the switching element (T131) when a current flowing in the switching element (T131) becomes higher than a threshold interlocking with the magnitude of a direct current voltage. Consequently, a reflux current flows via a diode (D131) and a parallel circuit of the inductor (L131), the capacitor (C131), and the load (120). Furthermore, while the switching element (T131) is turned off, the capacitor (C132) is charged via an inductor (L132). The inductance of the inductor (L132) is set to a value larger than the inductance of the inductor (L131).
Inventors:
OHSHIMA SHUNZOU (JP)
Application Number:
PCT/JP2015/063683
Publication Date:
November 17, 2016
Filing Date:
May 12, 2015
Export Citation:
Assignee:
OHSHIMA SHUNZOU (JP)
International Classes:
H02M3/155
Domestic Patent References:
| WO2013128509A1 | 2013-09-06 |
Foreign References:
| JP2013026079A | 2013-02-04 | |||
| JP2014029763A | 2014-02-13 | |||
| JP2011091942A | 2011-05-06 | |||
| JP2012169183A | 2012-09-06 | |||
| US7759881B1 | 2010-07-20 |
Attorney, Agent or Firm:
IKEDA Toshiyuki et al. (JP)
Toshiyuki Ikeda (JP)
Toshiyuki Ikeda (JP)
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