POWER SUPPLY CONTROL DEVICE

Title:

POWER SUPPLY CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2013/118574

Kind Code:

A1

Abstract:

The purpose of the invention is to provide a power supply control device that reliably stops the operation of a compressor when an abnormality occurs in the compressor. A compressor inverter (28) has a plurality of transistors (Q28a to Q28f) and turns on or off the transistors (Q28a to Q28f) to generate driving voltages (SU1 to SW1) for driving a compressor motor (M2) and output the driving voltages (SU1 to SW1) to the compressor motor (M2). A compressor microcomputer (30) controls the compressor inverter (28). A switching power supply unit (24) generates a first power supply (V1) supplied to the compressor microcomputer (30). When an abnormality occurs in a compressor, a power supply control switch (S25) stops the switching power supply unit (24) from generating the first power supply (V1), thereby stopping the control by the compressor microcomputer (30).

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Inventors:

NAKASHITA YUUKO
YAGI SATOSHI

Application Number:

PCT/JP2013/051195

Publication Date:

August 15, 2013

Filing Date:

January 22, 2013

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

H02P29/02

Foreign References:

JP2005143210A	2005-06-02
JP2010252567A	2010-11-04
JP2011114920A	2011-06-09
JP2007198143A	2007-08-09
JP2009247207A	2009-10-22
JP4738129B2	2011-08-03

Other References: