Title:
突入電流低減回路及び電力変換装置
Document Type and Number:
Japanese Patent JP6699929
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rush current reduction circuit which can suppress the damage of a relay while suppressing an increase of a required time for precharging a capacitor.SOLUTION: A pair of input nodes is connected to a DC power supply. One electrode of a capacitor is connected to one of the input nodes, whereas the other input node is connected to the other electrode of the capacitor through a main relay. A plurality of branch circuits are connected in parallel to the main relay. Each of the plurality of shunt circuits is composed of a charging resistance element and a relay for precharge which are mutually connected in series.SELECTED DRAWING: Figure 1
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Inventors:
Yamaguchi Hidemasa
Kubo Kohei
Kubo Kohei
Application Number:
JP2016064228A
Publication Date:
May 27, 2020
Filing Date:
March 28, 2016
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
H02J1/00; H02H9/02; H02M3/155
Domestic Patent References:
| JP52107337U | ||||
| JP2009201266A | ||||
| JP2014165951A |
Foreign References:
| CN103840448A | ||||
| CN101064428A |
Attorney, Agent or Firm:
Mikio Kuruyama