Title:
INRUSH CURRENT SUPPRESSION DEVICE AND MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/059262
Kind Code:
A1
Abstract:
This inrush current suppression device is an inrush current suppression device which suppresses an inrush current flowing from a DC power supply through a mechanical switch, and comprises: a first capacitor having one end connected to a positive terminal of the DC power supply through the mechanical switch; a semiconductor switching element connected to the other end of the first capacitor and a negative terminal of the DC power supply 1 between the other end of the first capacitor and the negative terminal of the DC power supply; a resistance element connected in parallel with the semiconductor switching element; and a control circuit which controls the semiconductor switching element. The control circuit has a first output port, and controls the on time and the off time of the semiconductor switching element, by outputting a PWM signal from the first output port to the semiconductor switching element after the mechanical switch is closed.
Inventors:
TUBOUCHI TOSHIKI
ISODA MINEAKI
ISODA MINEAKI
Application Number:
PCT/JP2019/027292
Publication Date:
March 26, 2020
Filing Date:
July 10, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J1/00; H02H9/02; H02M7/48
Foreign References:
| JP2014187768A | 2014-10-02 | |||
| JP2016178730A | 2016-10-06 | |||
| JP2004112954A | 2004-04-08 | |||
| JP2010213473A | 2010-09-24 | |||
| JP2019118236A | 2019-07-18 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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