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Patent Searching and Data


Title:
MOTOR DRIVE DEVICE AND AIR CONDITIONER USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/146020
Kind Code:
A1
Abstract:
This motor drive device (80) is connected to a motor (30) by means of a first connection line (41), a second connection line (42), and a third connection line (43) which respectively correspond to a first phase, a second phase and a third phase, and drives the motor (30), the motor drive device being provided with: an inverter (20) which converts a DC voltage to a three-phase AC voltage and outputs the three-phase AC voltage to the motor (30); a voltage detection circuit (50) which detects a first voltage based on the potential difference between the potential of the first connection line (41) and a reference potential; and a control unit (70) which calculates a voltage value of the DC voltage using the first voltage and controls the operation of the inverter (20) using the voltage value.

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Inventors:
TSUCHIYA ATSUSHI (JP)
UEMURA KEISUKE (JP)
HATAKEYAMA KAZUNORI (JP)
Application Number:
PCT/JP2018/002149
Publication Date:
August 01, 2019
Filing Date:
January 24, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/06
Domestic Patent References:
WO2016027357A12016-02-25
Foreign References:
JP2010057216A2010-03-11
JP2014081193A2014-05-08
CN103178756A2013-06-26
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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