Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/067051
Kind Code:
A1
Abstract:
Obtained is a power supply device capable of discharging an input capacitor while being reduced in size. The power supply device according to the present invention is provided with: a switching circuit capable of performing a switching operation on the basis of the voltage of an input capacitor; a rectifier circuit capable of performing a rectifying operation on the basis of the output voltage of the switching circuit; a smoothing circuit capable of smoothing the output voltage of the rectifier circuit; a discharge circuit having one or a plurality of first resistive elements and a first switch, said resistive elements being connected in series in a path between an output node of the smoothing circuit and a reference node thereof; and a control circuit capable of, in a first operation mode, causing the switching circuit to perform the switching operation and bringing the first switch into an on-state.
Inventors:
HARA YOHEI (JP)
TSUJIMOTO KENGO (JP)
NAKANISHI HIROYUKI (JP)
ISHINO YUSUKE (JP)
TSUJIMOTO KENGO (JP)
NAKANISHI HIROYUKI (JP)
ISHINO YUSUKE (JP)
Application Number:
PCT/JP2019/037343
Publication Date:
April 02, 2020
Filing Date:
September 24, 2019
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H02M3/28
Foreign References:
| JP2015104299A | 2015-06-04 | |||
| JP2014079130A | 2014-05-01 | |||
| JP2001286135A | 2001-10-12 | |||
| JP2014161160A | 2014-09-04 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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