GB860685A - Improvements in or relating to electronic switching devices - Google Patents

Improvements in or relating to electronic switching devices

Info

Publication number
GB860685A
GB860685A GB28771/57A GB2877157A GB860685A GB 860685 A GB860685 A GB 860685A GB 28771/57 A GB28771/57 A GB 28771/57A GB 2877157 A GB2877157 A GB 2877157A GB 860685 A GB860685 A GB 860685A
Authority
GB
United Kingdom
Prior art keywords
collector
circuit
resistor
potential
base
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
GB28771/57A
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.)
Societe dElectronique et dAutomatisme SA
Original Assignee
Societe dElectronique et dAutomatisme SA
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 Societe dElectronique et dAutomatisme SA filed Critical Societe dElectronique et dAutomatisme SA
Publication of GB860685A publication Critical patent/GB860685A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6285—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several outputs only combined with selecting means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6271—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several outputs only and without selecting means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/047—Distributors with transistors or integrated circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/14—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electronic Switches (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

860,685. Transistor pulse-discriminating circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Sept. 12, 1957 [Sept. 24, 1956], No. 28771/57. Class 40 (6). [Also in Group XL (b)] A circuit is arranged with a high resistor 31 in the collector circuit of the transistor 1, Fig. 1, so that the potential of the collector V a remains near earth potential except when the base current is near zero. Curve 1, Fig. 5, shows normal resistor and curve 4 the effect of using a much larger resistor 31, A being the gain of the stage. When the emitter-base circuit is biased forwardly the potential drop across the resistor 31 is sufficient to hold the collector near earth potential, and when the base emitter junction is negatively biased the collector potential is near the supply. A number of transistors 1 ...4 may be arranged with varying biases on them so that a saw-tooth wave V c is effective at terminal 61 to cause the transistors to conduct in turn, Fig. 6, to allow the circuit to operate as a distributer of an input signal 60 (see Group XL (b)).
GB28771/57A 1956-09-24 1957-09-12 Improvements in or relating to electronic switching devices Expired GB860685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1158630T 1956-09-24

Publications (1)

Publication Number Publication Date
GB860685A true GB860685A (en) 1961-02-08

Family

ID=9651158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28771/57A Expired GB860685A (en) 1956-09-24 1957-09-12 Improvements in or relating to electronic switching devices

Country Status (3)

Country Link
DE (1) DE1049425B (en)
FR (1) FR1158630A (en)
GB (1) GB860685A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246162A (en) * 1965-03-24 1966-04-12 Rca Corp Electroluminescent device having a field-effect transistor addressing system
US3254267A (en) * 1960-10-25 1966-05-31 Westinghouse Electric Corp Semiconductor-controlled, direct current responsive electroluminescent phosphors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170070A (en) * 1959-10-19 1965-02-16 S H Couch Company Inc Current detecting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254267A (en) * 1960-10-25 1966-05-31 Westinghouse Electric Corp Semiconductor-controlled, direct current responsive electroluminescent phosphors
US3246162A (en) * 1965-03-24 1966-04-12 Rca Corp Electroluminescent device having a field-effect transistor addressing system

Also Published As

Publication number Publication date
FR1158630A (en) 1958-06-17
DE1049425B (en) 1959-01-29

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