JPS60245493A - Protecting device of inverter for air conditioner - Google Patents

Protecting device of inverter for air conditioner

Info

Publication number
JPS60245493A
JPS60245493A JP59099503A JP9950384A JPS60245493A JP S60245493 A JPS60245493 A JP S60245493A JP 59099503 A JP59099503 A JP 59099503A JP 9950384 A JP9950384 A JP 9950384A JP S60245493 A JPS60245493 A JP S60245493A
Authority
JP
Japan
Prior art keywords
inverter
timer
comparator
outputs
controller
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.)
Pending
Application number
JP59099503A
Other languages
Japanese (ja)
Inventor
Hiroyuki Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP59099503A priority Critical patent/JPS60245493A/en
Publication of JPS60245493A publication Critical patent/JPS60245493A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration

Abstract

PURPOSE:To efficiently operate a power inverter and to effectively protect against thermal damage by stepwisely detecting a current and operating a controller by a time limit inversely proportional to the current. CONSTITUTION:When a current flowed to a power inverter 6 gradually increases, it is input to the second timer 18 over a reference voltage of the second comparator 15, and when the set time of the timer is elapsed, the timer 18 outputs an output signal to a controller 10, which outputs an interruption command. When a large current flows to the inverter 6 for a short time, even if the output of the second comparator 15 is produced, the timer 18 operates for a short time. Thus, when exceeding the reference voltage of the first comparator 11, the first timer 14 operating for a short time operates, the controller 10 outputs an interruption command to the inverter 6 by the output to protect the output element of the inverter 6 against thermal damage.
JP59099503A 1984-05-17 1984-05-17 Protecting device of inverter for air conditioner Pending JPS60245493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59099503A JPS60245493A (en) 1984-05-17 1984-05-17 Protecting device of inverter for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59099503A JPS60245493A (en) 1984-05-17 1984-05-17 Protecting device of inverter for air conditioner

Publications (1)

Publication Number Publication Date
JPS60245493A true JPS60245493A (en) 1985-12-05

Family

ID=14249071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59099503A Pending JPS60245493A (en) 1984-05-17 1984-05-17 Protecting device of inverter for air conditioner

Country Status (1)

Country Link
JP (1) JPS60245493A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217805A (en) * 1986-03-19 1987-09-25 Nissan Motor Co Ltd Control unit for ac motor
JPS63114528A (en) * 1986-10-31 1988-05-19 Honda Motor Co Ltd Inverter generator
JPS63114526A (en) * 1986-10-31 1988-05-19 Honda Motor Co Ltd Inverter generator
JPS63131536U (en) * 1987-02-17 1988-08-29
JPS63191832U (en) * 1987-05-26 1988-12-09
JPH037015A (en) * 1989-06-02 1991-01-14 Fuji Electric Co Ltd Power ic
JPH04288432A (en) * 1990-11-20 1992-10-13 Samsung Electronics Co Ltd Apparatus and method for controlling current for air conditioning equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563579A (en) * 1978-11-04 1980-05-13 Fanuc Ltd Protective device for electric motor driving inverter circuit
JPS57208895A (en) * 1981-06-16 1982-12-22 Fanuc Ltd Controlling system of induction motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563579A (en) * 1978-11-04 1980-05-13 Fanuc Ltd Protective device for electric motor driving inverter circuit
JPS57208895A (en) * 1981-06-16 1982-12-22 Fanuc Ltd Controlling system of induction motor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217805A (en) * 1986-03-19 1987-09-25 Nissan Motor Co Ltd Control unit for ac motor
JPS63114528A (en) * 1986-10-31 1988-05-19 Honda Motor Co Ltd Inverter generator
JPS63114526A (en) * 1986-10-31 1988-05-19 Honda Motor Co Ltd Inverter generator
JPS63131536U (en) * 1987-02-17 1988-08-29
JPS63191832U (en) * 1987-05-26 1988-12-09
JPH037015A (en) * 1989-06-02 1991-01-14 Fuji Electric Co Ltd Power ic
JPH04288432A (en) * 1990-11-20 1992-10-13 Samsung Electronics Co Ltd Apparatus and method for controlling current for air conditioning equipment

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