JPS55107331A - Drive circuit for transistor - Google Patents

Drive circuit for transistor

Info

Publication number
JPS55107331A
JPS55107331A JP1526379A JP1526379A JPS55107331A JP S55107331 A JPS55107331 A JP S55107331A JP 1526379 A JP1526379 A JP 1526379A JP 1526379 A JP1526379 A JP 1526379A JP S55107331 A JPS55107331 A JP S55107331A
Authority
JP
Japan
Prior art keywords
winding
transistor
transformer
current flowing
interruption
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
JP1526379A
Other languages
Japanese (ja)
Inventor
Yoshihiko Fukuhara
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1526379A priority Critical patent/JPS55107331A/en
Publication of JPS55107331A publication Critical patent/JPS55107331A/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
    • H03K17/04—Modifications for accelerating switching
    • H03K17/042—Modifications for accelerating switching by feedback from the output circuit to the control circuit
    • H03K17/0424—Modifications for accelerating switching by feedback from the output circuit to the control circuit by the use of a transformer

Abstract

PURPOSE:To enable high speed switching of transistor (Tr), by connecting the variable impedance element to the primary winding of the three winding transformer and driving the transistor (Tr) so that the current flowing to the third winding can be in positive feedback to the secondary winding. CONSTITUTION:The variable impedance element consisting of Tr13, resistor 11 and capacitor C12 is connected to the primary winding n1 of the three winding transformer 10, one of the secondary winding n2 is connected to the base and collector of Tr1 via the diodes 2, 3, and another end is connected to the emitter of Tr1. The third winding n3 of the transformer 10 is connected to the emitter and load of Tr1. When switching current flows to Tr1, since the polarity of the current flowing to the winding n3 is made so that it can be positive fed back to the winding n2, Tr1 is instantly conductive. When Tr13 is conducted at the interruption of Tr1, a voltage is fed to the winding n1 with C12 with low impedance state in high frequency, the current flowing to the windings n2, n3 is cancelled in a short time, and the interruption of Tr1 is made in a short time.
JP1526379A 1979-02-13 1979-02-13 Drive circuit for transistor Pending JPS55107331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1526379A JPS55107331A (en) 1979-02-13 1979-02-13 Drive circuit for transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1526379A JPS55107331A (en) 1979-02-13 1979-02-13 Drive circuit for transistor

Publications (1)

Publication Number Publication Date
JPS55107331A true JPS55107331A (en) 1980-08-18

Family

ID=11883960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1526379A Pending JPS55107331A (en) 1979-02-13 1979-02-13 Drive circuit for transistor

Country Status (1)

Country Link
JP (1) JPS55107331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503455A1 (en) * 1981-04-01 1982-10-08 Lucas Industries Ltd TRANSISTOR DRIVE CIRCUIT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503455A1 (en) * 1981-04-01 1982-10-08 Lucas Industries Ltd TRANSISTOR DRIVE CIRCUIT

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