GB808331A - Transistor driver circuit - Google Patents

Transistor driver circuit

Info

Publication number
GB808331A
GB808331A GB15373/57A GB1537357A GB808331A GB 808331 A GB808331 A GB 808331A GB 15373/57 A GB15373/57 A GB 15373/57A GB 1537357 A GB1537357 A GB 1537357A GB 808331 A GB808331 A GB 808331A
Authority
GB
United Kingdom
Prior art keywords
base
pulse
collector
transistor
resistor
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
GB15373/57A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB808331A publication Critical patent/GB808331A/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
    • 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
    • H03K17/0422—Anti-saturation measures
    • 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
    • H03K19/01—Modifications for accelerating switching
    • H03K19/013—Modifications for accelerating switching in bipolar transistor circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Electronic Switches (AREA)

Abstract

808,331. Transistor pulse amplifying circuits. NATIONAL CASH REGISTER CO. May 15, 1957 [June 8, 1956], No. 15373/57. Class 40 (6). In a circuit employing a transistor 11 to the base of which an input pulse 23 is applied, a feedback circuit 16 is arranged to prevent current flowing in the base circuit from exceeding a certain value. By connecting the diode 16 to the collector and a tapping on the base resistor 19, the collector is prevented from rising to such a potential that saturation of the transistor occurs. The resistor 19 is shunted by a capacitor 21 to ensure the maintenance of a sharp leading pulse edge. When the input pulse 23 occurs at time t1, Fig. 2, the collector potential rises rapidly to near earth but is prevented from entering the saturation region due to diode 16 becoming conductive to pass current through part of resistor 19, thereby preventing any further rise in base and collector current. At the end of the pulse, t2, the positive-going edge is fed over capacitor 21 to the base to drive out minority carriers, thereby terminating the output pulse 24. The waveform 36 is that which would result in the absence of feedback diode 16.
GB15373/57A 1956-06-08 1957-05-15 Transistor driver circuit Expired GB808331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US808331XA 1956-06-08 1956-06-08

Publications (1)

Publication Number Publication Date
GB808331A true GB808331A (en) 1959-02-04

Family

ID=22159901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15373/57A Expired GB808331A (en) 1956-06-08 1957-05-15 Transistor driver circuit

Country Status (4)

Country Link
BE (1) BE558188A (en)
DE (1) DE1049912B (en)
FR (1) FR1178512A (en)
GB (1) GB808331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654486A (en) * 1965-04-30 1972-04-04 Sperry Rand Corp Transistor logic circuit with upset feedback

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL258753A (en) * 1959-12-07
FR1282993A (en) * 1960-03-12 1962-01-27 Hand-adaptable light signaling device, particularly suitable for cyclists and motorcyclists
IT699936A (en) * 1962-06-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654486A (en) * 1965-04-30 1972-04-04 Sperry Rand Corp Transistor logic circuit with upset feedback

Also Published As

Publication number Publication date
FR1178512A (en) 1959-05-12
DE1049912B (en) 1959-02-05
BE558188A (en)

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