JPS57154940A - Driving circuit of output switching transistor - Google Patents

Driving circuit of output switching transistor

Info

Publication number
JPS57154940A
JPS57154940A JP2772682A JP2772682A JPS57154940A JP S57154940 A JPS57154940 A JP S57154940A JP 2772682 A JP2772682 A JP 2772682A JP 2772682 A JP2772682 A JP 2772682A JP S57154940 A JPS57154940 A JP S57154940A
Authority
JP
Japan
Prior art keywords
side winding
pulse
transformer
current
turned
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
JP2772682A
Other languages
Japanese (ja)
Inventor
Katsuji Hosoda
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2772682A priority Critical patent/JPS57154940A/en
Publication of JPS57154940A publication Critical patent/JPS57154940A/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
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/665—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only
    • H03K17/666—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to one load terminal only the output circuit comprising more than one controlled bipolar transistor

Landscapes

  • Power Conversion In General (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent a malfunction although the superposition of time occurs in a driving pulse, by avoiding the generation of an output at the secondary side in case two pulse transformers are driven at one time. CONSTITUTION:When the driving pulse is applied to a terminal 14 or 24, a transistor TR is turned on to flow the current to the primary side winding of a pulse transformer. As a result, a TR15 or TR25 with the base terminal connected to the secondary side winding is turned on. When the driving pulse is applied to both terminals 14 and 24 at one time, the current flows to the primary side winding of both pulse transformers 10 and 20. In this case, both the current flowing to the 3rd side winding 13 of the transformer 10 and the 3rd side winding of the transformer 20 are turned forward. As a result, the impedance of the 3rd side winding becomes zero when it is viewed from the primary side winding to flow no current to the secondary side winding.
JP2772682A 1982-02-23 1982-02-23 Driving circuit of output switching transistor Pending JPS57154940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2772682A JPS57154940A (en) 1982-02-23 1982-02-23 Driving circuit of output switching transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2772682A JPS57154940A (en) 1982-02-23 1982-02-23 Driving circuit of output switching transistor

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49125951A Division JPS5744261B2 (en) 1974-10-31 1974-10-31

Publications (1)

Publication Number Publication Date
JPS57154940A true JPS57154940A (en) 1982-09-24

Family

ID=12229018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2772682A Pending JPS57154940A (en) 1982-02-23 1982-02-23 Driving circuit of output switching transistor

Country Status (1)

Country Link
JP (1) JPS57154940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121969A (en) * 1983-11-14 1985-06-29 タンデム　コンピユーターズ　インコーポレーテツド Constant current drive unit for switching power supply source
JP2006109733A (en) * 2004-10-13 2006-04-27 Yoka Ind Co Ltd Discharged straw-treating device of combine harvester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60121969A (en) * 1983-11-14 1985-06-29 タンデム　コンピユーターズ　インコーポレーテツド Constant current drive unit for switching power supply source
JPH06106023B2 (en) * 1983-11-14 1994-12-21 タンデム コンピユーターズ インコーポレーテツド Switching device for switching power supply
JP2006109733A (en) * 2004-10-13 2006-04-27 Yoka Ind Co Ltd Discharged straw-treating device of combine harvester

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