JPH03222677A - Air-conditioner - Google Patents

Air-conditioner

Info

Publication number
JPH03222677A
JPH03222677A JP2018138A JP1813890A JPH03222677A JP H03222677 A JPH03222677 A JP H03222677A JP 2018138 A JP2018138 A JP 2018138A JP 1813890 A JP1813890 A JP 1813890A JP H03222677 A JPH03222677 A JP H03222677A
Authority
JP
Japan
Prior art keywords
judging
pause time
judgment
time
shortest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2018138A
Other languages
Japanese (ja)
Other versions
JP2644355B2 (en
Inventor
Takatomo Matsumi
Yasunari Uramoto
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP2018138A priority Critical patent/JP2644355B2/en
Publication of JPH03222677A publication Critical patent/JPH03222677A/en
Application granted granted Critical
Publication of JP2644355B2 publication Critical patent/JP2644355B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To suppress fluctuation of torque of a motor compressor by decreasing the pause time in a control signal by a predetermined value at a time from an initial value when means for judging existence of short circuit spike current makes a negative judgment, and then setting a shortest pause time at which the judging means does not make an affirmative judgment.
CONSTITUTION: DC current at an inverter section 3 is detected through a current detecting circuit 4 and provided, as a detection signal, to the judging means 15 in a control circuit 6. The judging means 15 makes a judgment whether the inputted detection signals contain a short circuit spike current indicating simultaneous turn ON of any one pair of switching elements 9-14. When the judging means 15 makes a negative judgment, the shortest pause time setting means in the control circuit 6 decreases the pause time in a control signal by a predetermined value at a time and determines a shortest pause time at which the judging means 15 does not make an affirmative judgment, and then the pause time in the control signal is set at thus determined shortest pause time.
COPYRIGHT: (C)1991,JPO&Japio
JP2018138A 1990-01-29 1990-01-29 Air conditioner Expired - Fee Related JP2644355B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018138A JP2644355B2 (en) 1990-01-29 1990-01-29 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018138A JP2644355B2 (en) 1990-01-29 1990-01-29 Air conditioner

Publications (2)

Publication Number Publication Date
JPH03222677A true JPH03222677A (en) 1991-10-01
JP2644355B2 JP2644355B2 (en) 1997-08-25

Family

ID=11963245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018138A Expired - Fee Related JP2644355B2 (en) 1990-01-29 1990-01-29 Air conditioner

Country Status (1)

Country Link
JP (1) JP2644355B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008029060A (en) * 2006-07-18 2008-02-07 Mitsubishi Electric Corp Semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008029060A (en) * 2006-07-18 2008-02-07 Mitsubishi Electric Corp Semiconductor device

Also Published As

Publication number Publication date
JP2644355B2 (en) 1997-08-25

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees