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Title:
POWER CONVERTER CIRCUIT AND AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2012235632
Kind Code:
A
Abstract:

To exhibit a function of a power switch in a converter circuit without use of an electromagnetic relay.

A control section 300A, which controls switching of switching elements Trp, Ttp, Trn, Ttn mounted on upper and lower arms of at least two phases of a converter circuit 10A connected with a three-phase AC power supply E3 and a capacitor C and switching of an opening/closing relay 84C, controls switching of each of the switching elements Trp, Trn, Ttp, Ttn so that the opening/closing relay (84C) becomes a closing state, the upper and lower arms of one phase become a conduction state and the remaining upper and lower arms becomes a non-conduction state until an inrush current can be suppressed after starting energization to the converter circuit 10A.


Inventors:
ISHIZEKI SHINICHI
SATO TOSHIAKI
Application Number:
JP2011103230A
Publication Date:
November 29, 2012
Filing Date:
May 02, 2011
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
H02M7/12; F24F11/02; H02M7/48
Domestic Patent References:
JP2004072846A2004-03-04
JP2009207300A2009-09-10
JP2004072846A2004-03-04
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Tamagushi Yukihisa



 
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