GB972611A - Improvements in or relating to transistor switching circuits - Google Patents

Improvements in or relating to transistor switching circuits

Info

Publication number
GB972611A
GB972611A GB214560A GB214560A GB972611A GB 972611 A GB972611 A GB 972611A GB 214560 A GB214560 A GB 214560A GB 214560 A GB214560 A GB 214560A GB 972611 A GB972611 A GB 972611A
Authority
GB
United Kingdom
Prior art keywords
transistor
collector
switching
switching circuits
relating
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.)
Expired
Application number
GB214560A
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.)
Texas Instruments Ltd
Original Assignee
Texas Instruments 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 Texas Instruments Ltd filed Critical Texas Instruments Ltd
Priority to GB214560A priority Critical patent/GB972611A/en
Publication of GB972611A publication Critical patent/GB972611A/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
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
    • H03K17/0826—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in bipolar transistor switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/284—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator monostable

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)

Abstract

972,611. Transistor switching circuits. TEXAS INSTRUMENTS Ltd., and D. GRIFFIN. Jan. 20, 1961 [Jan. 20, 1960], No. 2145/60. Heading H3T. A switching circuit' comprising a transistor VT1 with an inductive load, e.g. a relay L, connected in series with its collector is provided with a feedback network R2, C1 connected from the collector electrode to the switch input, the feedback being such that the amplitude of the transient output pulse produced at the termination of an input pulse is less than the collectoremitter breakdown voltage. As shown, Fig. 3, the switching transistor is preceded by an input stage VT2, the emitter of which is connected directly to the base of the switching transistor VT1. In a modification, Fig. 1 (not shown), the input stage is omitted, and the feedback network is connected directly between the base and collector of transistor VT1.
GB214560A 1960-01-20 1960-01-20 Improvements in or relating to transistor switching circuits Expired GB972611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB214560A GB972611A (en) 1960-01-20 1960-01-20 Improvements in or relating to transistor switching circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB214560A GB972611A (en) 1960-01-20 1960-01-20 Improvements in or relating to transistor switching circuits

Publications (1)

Publication Number Publication Date
GB972611A true GB972611A (en) 1964-10-14

Family

ID=9734401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB214560A Expired GB972611A (en) 1960-01-20 1960-01-20 Improvements in or relating to transistor switching circuits

Country Status (1)

Country Link
GB (1) GB972611A (en)

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