JPS5612126A - Driving circuit - Google Patents

Driving circuit

Info

Publication number
JPS5612126A
JPS5612126A JP8744779A JP8744779A JPS5612126A JP S5612126 A JPS5612126 A JP S5612126A JP 8744779 A JP8744779 A JP 8744779A JP 8744779 A JP8744779 A JP 8744779A JP S5612126 A JPS5612126 A JP S5612126A
Authority
JP
Japan
Prior art keywords
transistor
signal
forward voltage
transformer
voltage
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
JP8744779A
Other languages
Japanese (ja)
Other versions
JPS6049377B2 (en
Inventor
Toshihiro Maruyama
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
Fuji Facom Corp
Original Assignee
Fuji Electric Co Ltd
Fuji Facom 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 Fuji Electric Co Ltd, Fuji Facom Corp filed Critical Fuji Electric Co Ltd
Priority to JP54087447A priority Critical patent/JPS6049377B2/en
Publication of JPS5612126A publication Critical patent/JPS5612126A/en
Publication of JPS6049377B2 publication Critical patent/JPS6049377B2/en
Expired 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
    • H03K17/687—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 field-effect transistors
    • H03K17/689—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 field-effect transistors with galvanic isolation between the control circuit and the output circuit
    • H03K17/691—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 field-effect transistors with galvanic isolation between the control circuit and the output circuit using transformer coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Digital Transmission (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent the generation of noises by reducing electric power consumption by providing a switching circuit and diode controlling the generation of reverse pulses at a primary side of the transformer of an insulating driving circuit and a capacitor holding a forward voltage at a secondary side. CONSTITUTION:Between time t1 and t3, transistors 9 and 10 turn on with signal TM2 and between time t1 and t2, transistor 8 turns on with signal TM1. However, a reverse voltage developed following a forward voltage between points A0-B0 on a primary side of transformer 13 is small, capacitor C is quickly charged with a forward voltage developed across a secondary winding, and the constant voltage Vc is applied via resistance R2 to FET12, which turns on. When signal TM1 is applied between t4 and t5, transistor 8 conducts and signal TM2 is not applied. Consequently, transformer 13 generates a large back-swing voltage following the forward voltage while transistor 8 is off and then transistor 11 conducts to discharge capacitor C instantaneously via a secondary winding, turning off transistor 12.
JP54087447A 1979-07-12 1979-07-12 drive circuit Expired JPS6049377B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54087447A JPS6049377B2 (en) 1979-07-12 1979-07-12 drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54087447A JPS6049377B2 (en) 1979-07-12 1979-07-12 drive circuit

Publications (2)

Publication Number Publication Date
JPS5612126A true JPS5612126A (en) 1981-02-06
JPS6049377B2 JPS6049377B2 (en) 1985-11-01

Family

ID=13915104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54087447A Expired JPS6049377B2 (en) 1979-07-12 1979-07-12 drive circuit

Country Status (1)

Country Link
JP (1) JPS6049377B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053709A2 (en) * 1980-12-04 1982-06-16 Siemens Aktiengesellschaft Circuitry for driving at least one power FET
JP2000252886A (en) * 1999-03-02 2000-09-14 Fujitsu Ltd Transmission line interface module and transmission system
JP2006187192A (en) * 2004-11-30 2006-07-13 Smc Corp Linear electromagnetic actuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053709A2 (en) * 1980-12-04 1982-06-16 Siemens Aktiengesellschaft Circuitry for driving at least one power FET
JP2000252886A (en) * 1999-03-02 2000-09-14 Fujitsu Ltd Transmission line interface module and transmission system
JP2006187192A (en) * 2004-11-30 2006-07-13 Smc Corp Linear electromagnetic actuator
US8174344B2 (en) 2004-11-30 2012-05-08 Smc Kabushiki Kaisha Linear electromagnetic actuator

Also Published As

Publication number Publication date
JPS6049377B2 (en) 1985-11-01

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