GB858280A - Improvements in or relating to transistor trigger circuits - Google Patents

Improvements in or relating to transistor trigger circuits

Info

Publication number
GB858280A
GB858280A GB1244856A GB1244856A GB858280A GB 858280 A GB858280 A GB 858280A GB 1244856 A GB1244856 A GB 1244856A GB 1244856 A GB1244856 A GB 1244856A GB 858280 A GB858280 A GB 858280A
Authority
GB
United Kingdom
Prior art keywords
transistor
input
pulse
circuit
edge
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
GB1244856A
Inventor
William John Talbot
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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
Priority to DENDAT1067060D priority Critical patent/DE1067060B/en
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1244856A priority patent/GB858280A/en
Publication of GB858280A publication Critical patent/GB858280A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K3/30—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 a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)
  • Details Of Television Scanning (AREA)

Abstract

858,280. Transistor pulse circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 9, 1957 [April 24,1956], No. 12448/56. Class 40(6). A circuit for switching a transistor between its twc states of conductivity comprises a second transistor having its input circuit ir parallel with the input circuit of the first transistor and a transiently regenerative circuit connected between the output and input circuit of the second transistor to superimpose impulses on the input wave to assist the transient portions of the input wave. The input edge of a pulse at (a) causes current to build up in transistors T1 and T2, feedback through transformer T and capacitor C2 adding a voltage spike to the pulse edge to speed the build-up in transistor T2. A similar spike of opposing polarity is produced at the trailing edge of the input pulse to assist in clearing stored charge carriers from the base of transistor T2. Bias is supplied through a resistor R5 to ensure that transistor T1 is cut off in the absence of an input pulse and resistor R4 ensures that transistor T1 is only lightly bottomed when conducting so that it will switch off quickly. The circuit L1, R6, D1 prevents ringing in the transformer T.
GB1244856A 1956-04-24 1956-04-24 Improvements in or relating to transistor trigger circuits Expired GB858280A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DENDAT1067060D DE1067060B (en) 1956-04-24 Transistor circuit
GB1244856A GB858280A (en) 1956-04-24 1956-04-24 Improvements in or relating to transistor trigger circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1244856A GB858280A (en) 1956-04-24 1956-04-24 Improvements in or relating to transistor trigger circuits

Publications (1)

Publication Number Publication Date
GB858280A true GB858280A (en) 1961-01-11

Family

ID=10004784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1244856A Expired GB858280A (en) 1956-04-24 1956-04-24 Improvements in or relating to transistor trigger circuits

Country Status (2)

Country Link
DE (1) DE1067060B (en)
GB (1) GB858280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141672B (en) * 1961-03-08 1962-12-27 Elektro App Werke J W Stalin V Transistor trigger circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141672B (en) * 1961-03-08 1962-12-27 Elektro App Werke J W Stalin V Transistor trigger circuit

Also Published As

Publication number Publication date
DE1067060B (en) 1959-10-15

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