Title:
MOTOR DRIVE DEVICE, ELECTRIC VACUUM CLEANER, AND HAND DRYER
Document Type and Number:
WIPO Patent Application WO/2019/180967
Kind Code:
A1
Abstract:
This motor drive device (2) is provided with an inverter (11) for outputting AC voltage to a single-phase motor (12) and a control unit (25) for controlling the AC voltage output by the inverter (11). The control unit (25) causes a square wave voltage to be output to the inverter (11) both when the single-phase motor (12) is starting up and when in a low-speed rotation range. The control unit (25) causes a sine wave voltage to be output to the inverter when the single-phase motor (12) is in a medium-speed rotation range. The control unit (25) causes a trapezoidal wave voltage to be output to the inverter (11) when the single-phase motor (12) is in a high-speed range.
Inventors:
HATAKEYAMA KAZUNORI (JP)
TAKAYAMA YUJI (JP)
MATSUO HARUKA (JP)
TAKAYAMA YUJI (JP)
MATSUO HARUKA (JP)
Application Number:
PCT/JP2018/011932
Publication Date:
September 26, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/06
Domestic Patent References:
| WO2017077574A1 | 2017-05-11 | |||
| WO2018047274A1 | 2018-03-15 |
Foreign References:
| JPH11215876A | 1999-08-06 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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