GB770056A - Improvements in or relating to gate circuits embodying transistors - Google Patents

Improvements in or relating to gate circuits embodying transistors

Info

Publication number
GB770056A
GB770056A GB1026554A GB1026554A GB770056A GB 770056 A GB770056 A GB 770056A GB 1026554 A GB1026554 A GB 1026554A GB 1026554 A GB1026554 A GB 1026554A GB 770056 A GB770056 A GB 770056A
Authority
GB
United Kingdom
Prior art keywords
pulse
emitter
allow
base
inhibit
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
GB1026554A
Inventor
George Brian Barrie Chaplin
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1026554A priority Critical patent/GB770056A/en
Priority to DEN10462A priority patent/DE1011463B/en
Publication of GB770056A publication Critical patent/GB770056A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/12—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using diode rectifiers

Abstract

770,056. Transistor gating circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 4, 1955 [April 7, 1954], No. 10265/54. Class 40(6) In a transistor gate circuit in which the base potential is maintained higher than the emitter, an input pulse being applied to drive the emitter more positive than the base, means are provided for rendering the input signal ineffective. In the normal condition diodes maintain the emitter near earth potential, the base near plus 2 volts, and the collector near minus 14 volts. The inverse delayed clock pulse and the inverse clock pulse prepare the emitter and base circuit by raising the cathodes of diodes D 2 , D,. If an allow pulse raises the cathode of diode D<SP>1</SP> then the input pulse is fed through to the emitter of transistor T to cause it to conduct and pass to the on state. The inductor L is critically damped and would switch off the transistor but the switching is terminated by the positive edge of the clock pulse. In the absence of an allow pulse any tendency for the emitter to rise is off-set by the inhibit pulse on the base fed in over the cathode of diode D 6 . Even if an allow pulse is present, there is no effect as the inverted delayed clock pulses are shorter than the allow and inhibit pulses. If only the allow or inhibit facilities are required, the corresponding source of inhibit or allow pulses may be omitted. Specification 747,606 is referred to.
GB1026554A 1954-04-07 1954-04-07 Improvements in or relating to gate circuits embodying transistors Expired GB770056A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1026554A GB770056A (en) 1954-04-07 1954-04-07 Improvements in or relating to gate circuits embodying transistors
DEN10462A DE1011463B (en) 1954-04-07 1955-04-05 Transistor coincidence circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1026554A GB770056A (en) 1954-04-07 1954-04-07 Improvements in or relating to gate circuits embodying transistors

Publications (1)

Publication Number Publication Date
GB770056A true GB770056A (en) 1957-03-13

Family

ID=9964665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1026554A Expired GB770056A (en) 1954-04-07 1954-04-07 Improvements in or relating to gate circuits embodying transistors

Country Status (2)

Country Link
DE (1) DE1011463B (en)
GB (1) GB770056A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073543B (en) * 1951-11-06 1960-01-21 Western Electric Company Incorporated, New York N Y (V St A) Pulse amplifier with transistor

Also Published As

Publication number Publication date
DE1011463B (en) 1957-07-04

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