JPS55128923A - Driving circuit for switching transistor - Google Patents

Driving circuit for switching transistor

Info

Publication number
JPS55128923A
JPS55128923A JP3629579A JP3629579A JPS55128923A JP S55128923 A JPS55128923 A JP S55128923A JP 3629579 A JP3629579 A JP 3629579A JP 3629579 A JP3629579 A JP 3629579A JP S55128923 A JPS55128923 A JP S55128923A
Authority
JP
Japan
Prior art keywords
current
trqs
trqa
turned
turn
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
JP3629579A
Other languages
Japanese (ja)
Inventor
Tadashi Sugaya
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.)
Kyosan Electric Manufacturing Co Ltd
Original Assignee
Kyosan Electric Manufacturing 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 Kyosan Electric Manufacturing Co Ltd filed Critical Kyosan Electric Manufacturing Co Ltd
Priority to JP3629579A priority Critical patent/JPS55128923A/en
Publication of JPS55128923A publication Critical patent/JPS55128923A/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
    • H03K17/60—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 the devices being bipolar transistors
    • H03K17/601—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 the devices being bipolar transistors using transformer coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To reduce the turn-off time of the switching Tr by applying the forward and backward biases through turn-off of the 1st and 2nd driving transistors Tr respectively. CONSTITUTION:The 1st and 2nd driving TrQa and Qb are turned on and off each for the period of ''H'' of control signal DS. And the collector current of TrQa features Ica, and thus the voltage indicated by the solid line arrows are induced to secondary winding S. At the same time, forward bias current IBF flows between the base and the emitter of switching TrQs, and then TrQs is turned on the give flowing to collector current Ics. On the other hand, TrQa and Qb are turned off and on each when signal DS features ''L''. And thus the collector current of TrQb features Icb, and thus the voltage indicated by the dotted line arrows are induced at winding S and in accordance with the peak current. And backward bias current IBR flows instantaneously in order to negate the storage carrier between the base and the emitter of TrQs. As a result, the turn-off time can be reduced for current Icb.
JP3629579A 1979-03-29 1979-03-29 Driving circuit for switching transistor Pending JPS55128923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3629579A JPS55128923A (en) 1979-03-29 1979-03-29 Driving circuit for switching transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3629579A JPS55128923A (en) 1979-03-29 1979-03-29 Driving circuit for switching transistor

Publications (1)

Publication Number Publication Date
JPS55128923A true JPS55128923A (en) 1980-10-06

Family

ID=12465810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3629579A Pending JPS55128923A (en) 1979-03-29 1979-03-29 Driving circuit for switching transistor

Country Status (1)

Country Link
JP (1) JPS55128923A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197781U (en) * 1981-06-10 1982-12-15
WO1983000591A1 (en) * 1981-08-07 1983-02-17 Hattori, Masayuki Drive circuit for power switching transistor
JPS58116066A (en) * 1981-12-29 1983-07-11 Fujitsu Ltd Drive circuit
JPS58220473A (en) * 1982-06-17 1983-12-22 Nippon Telegr & Teleph Corp <Ntt> Drive circuit for field effect transistor
JPS6277056A (en) * 1985-09-27 1987-04-09 Fujitsu Ltd Dc/dc converter
EP0312606A1 (en) * 1987-04-30 1989-04-26 Fanuc Ltd. Pre-drive circuit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197781U (en) * 1981-06-10 1982-12-15
JPS6116793Y2 (en) * 1981-06-10 1986-05-23
WO1983000591A1 (en) * 1981-08-07 1983-02-17 Hattori, Masayuki Drive circuit for power switching transistor
US4562361A (en) * 1981-08-07 1985-12-31 Fanuc Ltd Power switching transistor drive circuit
JPS58116066A (en) * 1981-12-29 1983-07-11 Fujitsu Ltd Drive circuit
JPH0117610B2 (en) * 1981-12-29 1989-03-31 Fujitsu Ltd
JPS58220473A (en) * 1982-06-17 1983-12-22 Nippon Telegr & Teleph Corp <Ntt> Drive circuit for field effect transistor
JPS6277056A (en) * 1985-09-27 1987-04-09 Fujitsu Ltd Dc/dc converter
JPH0350506B2 (en) * 1985-09-27 1991-08-01 Fujitsu Ltd
EP0312606A1 (en) * 1987-04-30 1989-04-26 Fanuc Ltd. Pre-drive circuit

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