GB762526A - Improvements in or relating to transistor circuit arrangements - Google Patents

Improvements in or relating to transistor circuit arrangements

Info

Publication number
GB762526A
GB762526A GB1183254A GB1183254A GB762526A GB 762526 A GB762526 A GB 762526A GB 1183254 A GB1183254 A GB 1183254A GB 1183254 A GB1183254 A GB 1183254A GB 762526 A GB762526 A GB 762526A
Authority
GB
United Kingdom
Prior art keywords
transistor
potential
base
circuit
capacitor
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
GB1183254A
Inventor
William Lawrence Stephenson
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve Co 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 Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Priority to GB1183254A priority Critical patent/GB762526A/en
Publication of GB762526A publication Critical patent/GB762526A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/52—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor using two semiconductor devices so coupled that the input of each one is derived from the output of the other, e.g. multivibrator
    • 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
    • H03K3/282—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 astable
    • H03K3/2823—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 astable using two active transistor of the same conductivity type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/56—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

762,526. Sawtooth and pulse transistor circuits. MULLARD RADIO VALVE CO., Ltd., March 29, 1955 [April 23, 1954], No. 11832/54. Class 40(6) In a circuit having a capacitor connected between the collector circuit and the base of a first transistor to provide negative feed back of the Miller type, a second and third transistor are arranged in a trigger circuit including the capacitor, the second transistor also being included in the collector circuit of the first to interrupt the negative feed back in response to a signal applied to the base. Assuming transistor 2 to commence conduction, the potential at A rises applying over the Miller capacitor 5 a potential rise to the base of transistor 3, the diode 6 preventing transistor 3 from being completely cut off. The fall in potential of the collector of transistor 3, curve C, is fed over coupling capacitor 4 and resistor 7 to the base of transistor 2, curve D to complete a positive feed back loop so that transistor 2 is held in saturation. During the forward stroke the current passed by the emitter of transistor 3 increases, the potential rising curve B and the current through transistor 1 also rising correspondingly. At the end of the forward stroke, transistor 1 bottoms with the result that the collector of transistor 2 cannot rise further in potential. The base of transistor 3 therefore commences to fall and due to the positive feed-back loop transistor 2 cuts off as the potential of point A falls, and the base, curve D, rises. The circuit remains in this condition until the charge on capacitor 4 has changed sufficiently for transistor 2 to conduct again and the cycle repeats. The R.C. coupling 4, 7 may be replaced by D.C. coupling so that the circuit has a single stable stage and when triggered passes through a cycle and back to its original state. A sawtooth output may be derived from the join of transistors 1, 2 at the point E.
GB1183254A 1954-04-23 1954-04-23 Improvements in or relating to transistor circuit arrangements Expired GB762526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1183254A GB762526A (en) 1954-04-23 1954-04-23 Improvements in or relating to transistor circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1183254A GB762526A (en) 1954-04-23 1954-04-23 Improvements in or relating to transistor circuit arrangements

Publications (1)

Publication Number Publication Date
GB762526A true GB762526A (en) 1956-11-28

Family

ID=9993539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1183254A Expired GB762526A (en) 1954-04-23 1954-04-23 Improvements in or relating to transistor circuit arrangements

Country Status (1)

Country Link
GB (1) GB762526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999174A (en) * 1959-01-30 1961-09-05 Sperry Rand Corp Sweep generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999174A (en) * 1959-01-30 1961-09-05 Sperry Rand Corp Sweep generator

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