JPS56161722A - Base driving device for transistor - Google Patents

Base driving device for transistor

Info

Publication number
JPS56161722A
JPS56161722A JP6462480A JP6462480A JPS56161722A JP S56161722 A JPS56161722 A JP S56161722A JP 6462480 A JP6462480 A JP 6462480A JP 6462480 A JP6462480 A JP 6462480A JP S56161722 A JPS56161722 A JP S56161722A
Authority
JP
Japan
Prior art keywords
current
base
driving
main
power supply
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
JP6462480A
Other languages
Japanese (ja)
Inventor
Kazuo Kuroki
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 JP6462480A priority Critical patent/JPS56161722A/en
Publication of JPS56161722A publication Critical patent/JPS56161722A/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

Landscapes

  • Dc-Dc Converters (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To make the base current of a main transistor (TR) constant, by providing a control TR which detects and switches the variance in the base current fed to a main TR via a driving TR from a DC power supply. CONSTITUTION:The base current of a main transistor TR2 is fed from a DC power supply 1 via a driving TR3 and returns to the power supply 1 via a current detecting resistor 9. The driving TR3 is conductive by an output I1 of a driving signal circuit and TR2 is conductive with a driving base current I4 to be flowed. When the DC power supply 1 is in variance, the potential across the resistor 9 is increased, and when it exceeds a voltage between the base and emitter of a control TR8, the TR8 is conductive to flow a current I3, and a base current I2 of the TR3 is I2=I1-I3, resulting that the current I2 is decreased and the current I4 is always at a constant current when the I4 is going to increase. A current I5 flows from a driving signal circuit in the emitter base direction to turn off the main TR2. Thus, the base current of the main TR2 can be made stable with a simple constitution.
JP6462480A 1980-05-15 1980-05-15 Base driving device for transistor Pending JPS56161722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6462480A JPS56161722A (en) 1980-05-15 1980-05-15 Base driving device for transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6462480A JPS56161722A (en) 1980-05-15 1980-05-15 Base driving device for transistor

Publications (1)

Publication Number Publication Date
JPS56161722A true JPS56161722A (en) 1981-12-12

Family

ID=13263592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6462480A Pending JPS56161722A (en) 1980-05-15 1980-05-15 Base driving device for transistor

Country Status (1)

Country Link
JP (1) JPS56161722A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61107234U (en) * 1984-12-18 1986-07-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61107234U (en) * 1984-12-18 1986-07-08

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