JPS5778223A - Base driving circuit for transistor - Google Patents

Base driving circuit for transistor

Info

Publication number
JPS5778223A
JPS5778223A JP55154304A JP15430480A JPS5778223A JP S5778223 A JPS5778223 A JP S5778223A JP 55154304 A JP55154304 A JP 55154304A JP 15430480 A JP15430480 A JP 15430480A JP S5778223 A JPS5778223 A JP S5778223A
Authority
JP
Japan
Prior art keywords
current
turned
transistor
base
main
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
JP55154304A
Other languages
Japanese (ja)
Inventor
Koichi Ueki
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
Fuji 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP55154304A priority Critical patent/JPS5778223A/en
Publication of JPS5778223A publication Critical patent/JPS5778223A/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

  • Electronic Switches (AREA)

Abstract

PURPOSE:To reduce the power consumption and the number of diodes, by connecting the anode of a collector catcher diode CCD of a main transistor to the base of a transistor of driving the main transistor. CONSTITUTION:When an input signal answers right, an auxiliary transistor (TR)3 of a base driving circuit 9 of a main TR8 is turned on, and a constant current iB8 from DC power sources 10 and 11 is flowed to the base of the main TR8, and the TR8 is turned on. A base current iB3 of the TR3 is equal to a value obtained by dividing the current iB8 by the current amplification factor of the TR3, and excess components of the current iB3 are flowed to the collector of the TR8 through a CCD5 to accelerate turning-off of the TR8. When the input signal is inverted, the TR3 is turned off, and a TR4 is turned on, and a reverse bias current starts flowing, and the TR8 is turned off after the turn-off time. The current flowed to the CCD5 is very minute, and the current iB8 is proportional to an collector current iC8 of the TR8, and thus, the power consumption is not wasted, and the circuit becomes small- size because of the use of only one diode.
JP55154304A 1980-11-01 1980-11-01 Base driving circuit for transistor Pending JPS5778223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55154304A JPS5778223A (en) 1980-11-01 1980-11-01 Base driving circuit for transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154304A JPS5778223A (en) 1980-11-01 1980-11-01 Base driving circuit for transistor

Publications (1)

Publication Number Publication Date
JPS5778223A true JPS5778223A (en) 1982-05-15

Family

ID=15581191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154304A Pending JPS5778223A (en) 1980-11-01 1980-11-01 Base driving circuit for transistor

Country Status (1)

Country Link
JP (1) JPS5778223A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152832U (en) * 1983-03-30 1984-10-13 ダイキン工業株式会社 Power transistor base drive circuit
JPS59183527A (en) * 1983-04-04 1984-10-18 Fuji Electric Co Ltd Base driving circuit of transistor
JPH0467819U (en) * 1990-10-25 1992-06-16

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152832U (en) * 1983-03-30 1984-10-13 ダイキン工業株式会社 Power transistor base drive circuit
JPS59183527A (en) * 1983-04-04 1984-10-18 Fuji Electric Co Ltd Base driving circuit of transistor
JPH0467819U (en) * 1990-10-25 1992-06-16

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