Title:
POWER CONVERSION DEVICE AND POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/013887
Kind Code:
A1
Abstract:
This power conversion device according to an aspect of the present invention comprises: a first power terminal that has two connecting terminals; a voltage sensor that is able to detect the voltage between the two connecting terminals; a switching circuit that is connected to the first power terminal; a transformer that has a first winding that is connected to the switching circuit, and a second winding; a rectifying circuit that is connected to the second winding; a smoothing circuit that is connected to the rectifying circuit; a second power terminal that is connected to the smoothing circuit; and a control circuit that is able to control the operations of the switching circuit and the rectifying circuit. The control circuit is able to cause the rectifying circuit to operate so as to supply power from the second power terminal toward the first power terminal in a second period before a first period for supplying power from the first power terminal toward the second power terminal, and is able to detect a short circuit between the two connecting terminals by performing a comparison operation for comparing the voltage detected by the voltage sensor and a predetermined threshold voltage within the period of the second period.
Inventors:
HARIYA AKINORI (JP)
TERADA KENTA (JP)
TERADA KENTA (JP)
Application Number:
PCT/JP2022/027581
Publication Date:
January 18, 2024
Filing Date:
July 13, 2022
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H02M3/28
Domestic Patent References:
| WO2022131121A1 | 2022-06-23 |
Foreign References:
| JP2005192324A | 2005-07-14 | |||
| JP4529851B2 | 2010-08-25 | |||
| JP2018129977A | 2018-08-16 | |||
| JP2008289326A | 2008-11-27 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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