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Patent Searching and Data


Title:
MOTOR DRIVING DEVICE, ELECTRIC BLOWER, ELECTRIC VACUUM CLEANER, AND HAND DRYER
Document Type and Number:
WIPO Patent Application WO/2022/085050
Kind Code:
A1
Abstract:
A motor driving device (2) comprises: an inverter (11) that converts a DC voltage into an AC voltage and that applies the converted AC voltage to a single-phase motor (12); and a voltage detector (21) that detects a motor induced voltage induced on the single-phase motor (12). In reactivation control for reactivating the single-phase motor (12) from a free running state, the absolute value of an average value of a motor applied voltage applied to the single-phase motor (12) by the inverter (11) is greater than the absolute value of an average value of a motor applied voltage when the single-phase motor (12) is activated from a stopped state.

Inventors:
TAKAYAMA YUJI (JP)
HATAKEYAMA KAZUNORI (JP)
Application Number:
PCT/JP2020/039275
Publication Date:
April 28, 2022
Filing Date:
October 19, 2020
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P6/18; H02P6/26
Domestic Patent References:
WO2016046992A12016-03-31
WO2018073869A12018-04-26
Foreign References:
JP2008263733A2008-10-30
JP2017158354A2017-09-07
JP2007236081A2007-09-13
JP2013081375A2013-05-02
JP2011172382A2011-09-01
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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