Title:
CONVERTER DEVICE, AND MOTOR DRIVE DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/179771
Kind Code:
A1
Abstract:
Provided is a rectifier circuit for a three-phase AC power supply, which has a rectifier circuit system capable of freely controlling voltage variation of different kinds ranging from the voltage in full-wave rectification to the voltage in voltage-multiplying rectification, and with which both a further improvement in efficiency and a more expansive driving range, in comparison to conventional systems, can be achieved. A converter device is equipped with: a switching means which is provided between an AC side of a three-phase diode bridge and a midpoint between smoothing capacitors connected in series, and which performs switching so as to activate each phase of the three-phase AC power supply; and a controller for controlling the switching means. The controller controls the switching means such that a phase of the three-phase power supply is activated for a time period in which said phase has the highest or lowest voltage, said voltage being detected by a detection means.
Inventors:
NOTOHARA YASUO (JP)
ANDO TATSUO (JP)
ANDO TATSUO (JP)
Application Number:
PCT/JP2013/060577
Publication Date:
December 05, 2013
Filing Date:
April 08, 2013
Export Citation:
Assignee:
HITACHI APPLIANCES INC (JP)
International Classes:
H02M7/12; H02P27/06
Foreign References:
| JP2004166359A | 2004-06-10 | |||
| JPH048175A | 1992-01-13 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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