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GB980200A - A transistor pulse generator circuit - Google Patents

A transistor pulse generator circuit

Info

Publication number
GB980200A
GB980200A GB1346262A GB1346262A GB980200A GB 980200 A GB980200 A GB 980200A GB 1346262 A GB1346262 A GB 1346262A GB 1346262 A GB1346262 A GB 1346262A GB 980200 A GB980200 A GB 980200A
Authority
GB
United Kingdom
Prior art keywords
transistor
current
capacitor
circuit
april
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
GB1346262A
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.)
Siemens Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens Corp
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 Siemens Schuckertwerke AG, Siemens Corp filed Critical Siemens Schuckertwerke AG
Publication of GB980200A publication Critical patent/GB980200A/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
    • H03K3/28—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM

Landscapes

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

Abstract

980, 200. Electric selective signalling systems. SIEMENS-SCHUCKERTWERKE A. G. April 6, 1962 [April 6, 1961], No.13462/62. Heading G4H. [Also in Division H3] A circuit for producing pulses the frequency of which is related to the value of a current, more particularly for use in an integrating system, comprises a capacitor 1 connected in parallel with the series combination of a first transistor 2 and a resistor 3 and also in parallel with a second transistor 4 and the primary winding 5 of a transformer the secondary of which is connected to the input circuit of the first transistor this electrode also being connected to a Zener diode the circuit being such that the current Je charges the capacitor until the Zener diode becomes conductive and renders the first transistor conducting, the current through this transistor causing the second transistor 4 also to conduct so that the capacitor is rapidly discharged. The circuit shown oscillates at a frequency depending upon the current charging the capacitor producing output pulses which may be applied to a counter to indicate the integral of the input current.
GB1346262A 1961-04-06 1962-04-06 A transistor pulse generator circuit Expired GB980200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES73343A DE1161048B (en) 1961-04-06 1961-04-06 Facility for digital integration

Publications (1)

Publication Number Publication Date
GB980200A true GB980200A (en) 1965-01-13

Family

ID=7503845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1346262A Expired GB980200A (en) 1961-04-06 1962-04-06 A transistor pulse generator circuit

Country Status (3)

Country Link
CH (1) CH388642A (en)
DE (1) DE1161048B (en)
GB (1) GB980200A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102347606A (en) * 2010-07-07 2012-02-08 成都芯源系统有限公司 Discharging circuit for capacitor and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102347606A (en) * 2010-07-07 2012-02-08 成都芯源系统有限公司 Discharging circuit for capacitor and method thereof
CN102347606B (en) * 2010-07-07 2014-08-27 成都芯源系统有限公司 Discharging circuit for capacitor and method thereof

Also Published As

Publication number Publication date
CH388642A (en) 1965-02-28
DE1161048B (en) 1964-01-09

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