JPS6482709A - Driving circuit for igbt - Google Patents

Driving circuit for igbt

Info

Publication number
JPS6482709A
JPS6482709A JP62240430A JP24043087A JPS6482709A JP S6482709 A JPS6482709 A JP S6482709A JP 62240430 A JP62240430 A JP 62240430A JP 24043087 A JP24043087 A JP 24043087A JP S6482709 A JPS6482709 A JP S6482709A
Authority
JP
Japan
Prior art keywords
output
time
collector
resistance
limit element
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
JP62240430A
Other languages
Japanese (ja)
Inventor
Hiroshi Miki
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP62240430A priority Critical patent/JPS6482709A/en
Publication of JPS6482709A publication Critical patent/JPS6482709A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/567—Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To preclude a deviation from a safe operation area by providing a circuit which puts an output transistor(TR) in an active area and a time-limit element which enables its operation only for a specific time when an IGBT turns on. CONSTITUTION:The circuit which turns on a TR 5 for forward bias voltage application between output TRs 5 and 6 and the time-limit element which operates it only for the specific time are provided. Namely, the emitter of a PNP TR 4 is connected to the plus side of a power source 7, and the collector of the NPN TR 14 is connected to the base of the TR 5 through a constant voltage diode 15; and the differentiating circuit composed of a resistance 12 and a capacitor 11 is interposed as the time-limit element between the collector of the output TR of a photocoupler 1 and the base of the Th 14 and the connection point between the resistance 12 and capacitor 11 is connected to the collector of the output TR of the photocoupler 1 through a resistance 2. Then the output TR 5 is put in operation in the active area under constant conditions in the beginning of turn-on operation to apply a relatively low voltage between the gate and emitter. Consequently, the deviation from the safe operation area is precluded.
JP62240430A 1987-09-24 1987-09-24 Driving circuit for igbt Pending JPS6482709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62240430A JPS6482709A (en) 1987-09-24 1987-09-24 Driving circuit for igbt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62240430A JPS6482709A (en) 1987-09-24 1987-09-24 Driving circuit for igbt

Publications (1)

Publication Number Publication Date
JPS6482709A true JPS6482709A (en) 1989-03-28

Family

ID=17059371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62240430A Pending JPS6482709A (en) 1987-09-24 1987-09-24 Driving circuit for igbt

Country Status (1)

Country Link
JP (1) JPS6482709A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002300019A (en) * 2001-04-02 2002-10-11 Fuji Electric Co Ltd Drive circuit for power converter
JP2004236469A (en) * 2003-01-31 2004-08-19 Kansai Electric Power Co Inc:The Instantaneous high power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002300019A (en) * 2001-04-02 2002-10-11 Fuji Electric Co Ltd Drive circuit for power converter
JP2004236469A (en) * 2003-01-31 2004-08-19 Kansai Electric Power Co Inc:The Instantaneous high power supply

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