Title:
MOTOR DRIVE DEVICE, ELECTRIC BLOWER, ELECTRIC VACUUM CLEANER, AND HAND DRYER
Document Type and Number:
WIPO Patent Application WO/2020/208786
Kind Code:
A1
Abstract:
A motor drive device (2) drives a single-phase motor (12) that has asymmetrical teeth (12e). The motor drive device (2) comprises an inverter (11) that supplies AC power to the single-phase motor (12). When starting up the single-phase motor (12) by applying the output voltage of the inverter (11) to the single-phase motor (12), if the absolute value of the current flowing in the inverter (11) or the single-phase motor (12) exceeds a first threshold value (Vth1), the application of the output voltage is stopped, and then the polarity of the output voltage is inverted.
Inventors:
TAKAYAMA YUJI (JP)
MATSUO HARUKA (JP)
HATAKEYAMA KAZUNORI (JP)
TSUCHIDA KAZUCHIKA (JP)
MATSUO HARUKA (JP)
HATAKEYAMA KAZUNORI (JP)
TSUCHIDA KAZUCHIKA (JP)
Application Number:
PCT/JP2019/015852
Publication Date:
October 15, 2020
Filing Date:
April 11, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P25/04
Domestic Patent References:
| WO2017077599A1 | 2017-05-11 |
Foreign References:
| JP2013188135A | 2013-09-19 | |||
| JP2017189093A | 2017-10-12 | |||
| JPS5281512A | 1977-07-08 | |||
| JPH01308192A | 1989-12-12 |
Other References:
See also references of EP 3955455A4
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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