GB1482290A - Switching means - Google Patents

Switching means

Info

Publication number
GB1482290A
GB1482290A GB3446174A GB3446174A GB1482290A GB 1482290 A GB1482290 A GB 1482290A GB 3446174 A GB3446174 A GB 3446174A GB 3446174 A GB3446174 A GB 3446174A GB 1482290 A GB1482290 A GB 1482290A
Authority
GB
United Kingdom
Prior art keywords
summing
switching means
earth
impedances
capacitances
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
GB3446174A
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.)
Hewlett Packard Ltd
Original Assignee
Hewlett Packard 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 Hewlett Packard Ltd filed Critical Hewlett Packard Ltd
Priority to GB3446174A priority Critical patent/GB1482290A/en
Publication of GB1482290A publication Critical patent/GB1482290A/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
    • H03K17/6257—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G08C15/08—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division the signals being represented by amplitude of current or voltage in transmission link
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Picture Signal Circuits (AREA)

Abstract

1482290 Summing circuits HEWLETT PACKARD Ltd 5 Aug 1974 34461/74 Heading G4G [Also in Division H3] The effect of capacitances Cs of transistor or other switches is reduced by connecting their outputs to the vertical earth terminal of a negative feedback amplifier and connecting the back contacts to earth. The circuit may be used for summing or scanning and the gain and frequency response may be determined by selecting the ratio of impedances Ri to Rf.
GB3446174A 1974-08-05 1974-08-05 Switching means Expired GB1482290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3446174A GB1482290A (en) 1974-08-05 1974-08-05 Switching means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3446174A GB1482290A (en) 1974-08-05 1974-08-05 Switching means

Publications (1)

Publication Number Publication Date
GB1482290A true GB1482290A (en) 1977-08-10

Family

ID=10365948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3446174A Expired GB1482290A (en) 1974-08-05 1974-08-05 Switching means

Country Status (1)

Country Link
GB (1) GB1482290A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409636A1 (en) * 1977-11-21 1979-06-15 Solartron Electronic Group CHARGING AMPLIFIER SCAN
EP0037268A1 (en) * 1980-03-29 1981-10-07 Victor Company Of Japan, Limited Switching circuit for effecting selection from a plurality of input analog signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409636A1 (en) * 1977-11-21 1979-06-15 Solartron Electronic Group CHARGING AMPLIFIER SCAN
EP0037268A1 (en) * 1980-03-29 1981-10-07 Victor Company Of Japan, Limited Switching circuit for effecting selection from a plurality of input analog signals

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee