Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/073866
Kind Code:
A1
Abstract:
This motor control device (1) comprises: a rectifier circuit (7); a switch (4) disposed between an AC power supply (2) and the rectifier circuit (7); an inverter circuit (8) that supplies AC power to a motor (3); a control unit (10) that outputs signals for controlling conduction and non-conduction of a switching element of the inverter circuit (8), and outputs signals that switch between conduction and non-conduction of the switch (4); a voltage-generating circuit (31) that draws in the voltage of each phase wiring in a power supply voltage supply cable (5) that connects the AC power supply (2) and the switch (4) and generates an insulation resistance voltage that corresponds to the insulation resistance; and a voltage detection circuit (32) that detects the insulation resistance voltage generated by the voltage-generating circuit (31).
Inventors:
OWAKI RYOMA (JP)
HAYASHI YOSHITOMO (JP)
OGURA SHOGO (JP)
HAYASHI YOSHITOMO (JP)
OGURA SHOGO (JP)
Application Number:
PCT/JP2021/039836
Publication Date:
May 04, 2023
Filing Date:
October 28, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K11/00
Foreign References:
| JP2006025529A | 2006-01-26 | |||
| JP2009204600A | 2009-09-10 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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