GB1004754A - Control circuits for electronic switches - Google Patents

Control circuits for electronic switches

Info

Publication number
GB1004754A
GB1004754A GB4872462A GB4872462A GB1004754A GB 1004754 A GB1004754 A GB 1004754A GB 4872462 A GB4872462 A GB 4872462A GB 4872462 A GB4872462 A GB 4872462A GB 1004754 A GB1004754 A GB 1004754A
Authority
GB
United Kingdom
Prior art keywords
transistor
conductive
circuit
capacitor
control circuit
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
GB4872462A
Inventor
Paul Glover Lucas
Sidney Sherman Rigby
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.)
Adage Inc
Original Assignee
Adage Inc
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 Adage Inc filed Critical Adage Inc
Priority to GB4872462A priority Critical patent/GB1004754A/en
Publication of GB1004754A publication Critical patent/GB1004754A/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
    • H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/06—Programming arrangements, e.g. plugboard for interconnecting functional units of the computer; Digital programming
    • 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
    • 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
    • H03K17/6257—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means

Landscapes

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

Abstract

1,004,754. Electronic switching circuits; pulse multiplex circuits. ADAGE Inc. Dec. 27, 1962, No. 48724/62. Headings H3P, H3T and H4L. An electronic switch or gate is controlled by an energy storage device which, when a control signal is of one polarity, charges and when the signal is of opposite polarity discharges through the switch to render it conductive, diodes being provided to isolate the capacitor from the control signal source during the conductive period of the switch. Fig. 1 shows a transistor 12 operating in the inverse manner (i.e. with the functions of emitter and collector interchanged) to connect input signal terminals 11, 11<SP>1</SP> to output terminals 21, 21<SP>1</SP>. When the output from a bistable control circuit 15 is positive a capacitor 14 is charged through a circuit 16, 17, 22 and the transistor is non-conductive. When the signal from the control circuit is negative diode 16 is cut-off to isolate the control circuit from the transistor and the capacitor discharges through the base-collector circuit of the transistor rendering the transistor conductive until the control circuit changes over again. When the transistor is conductive diode 22 remains conductive but is of high impedance. In Fig. 3, isolation of the input terminals from the transistor is provided during both " on " and " off " periods. When the control voltage from 62 is positive the capacitor 72 charges through the circuit 70, 78, 74, 68, and the transistor is non-conducting and diodes 86 and 88 isolate the control circuit from the transistor. When the control voltage from 62 is negative, diodes 68 and 70 are non-conductive and the capacitor discharges through the circuit 76, 86, the collector-base path of the transistor 88 and 80, rendering the transistor conducting. In Fig. 4 (not shown) the transistor circuit is replaced by a diode bridge gate. A pulse multiplex system may utilize a number of the gates to connect a plurality of analogue signals in turn through an amplifier to a common output line, negative feed-back being provided between the output of the amplifier and the input of each gate (Fig. 2, not shown).
GB4872462A 1962-12-27 1962-12-27 Control circuits for electronic switches Expired GB1004754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4872462A GB1004754A (en) 1962-12-27 1962-12-27 Control circuits for electronic switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4872462A GB1004754A (en) 1962-12-27 1962-12-27 Control circuits for electronic switches

Publications (1)

Publication Number Publication Date
GB1004754A true GB1004754A (en) 1965-09-15

Family

ID=10449686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4872462A Expired GB1004754A (en) 1962-12-27 1962-12-27 Control circuits for electronic switches

Country Status (1)

Country Link
GB (1) GB1004754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139835A (en) * 1983-05-11 1984-11-14 Tadiran Israel Elect Ind Ltd Rf power switches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139835A (en) * 1983-05-11 1984-11-14 Tadiran Israel Elect Ind Ltd Rf power switches

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