GB1078997A - Electronic signal selector - Google Patents

Electronic signal selector

Info

Publication number
GB1078997A
GB1078997A GB21078/65A GB2107865A GB1078997A GB 1078997 A GB1078997 A GB 1078997A GB 21078/65 A GB21078/65 A GB 21078/65A GB 2107865 A GB2107865 A GB 2107865A GB 1078997 A GB1078997 A GB 1078997A
Authority
GB
United Kingdom
Prior art keywords
signal
current
point
diodes
largest
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
GB21078/65A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB21078/65A priority Critical patent/GB1078997A/en
Priority to US548620A priority patent/US3461315A/en
Publication of GB1078997A publication Critical patent/GB1078997A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)

Abstract

1,078,997. Selecting the largest or smallest signal. A NATHAN. May 12, 1966 [May 18, 1965, No. 21078/65. Heading H3T. [Also in Division G4] In a circuit for selecting the largest or smallest of a number of input signals and suitable for use in a cascade multiplier, the signals are applied to a common point through respective unidirectional conductors and a current is supplied to the common point which is so varied by the potential at the point that the current through the unidirectional conductors is independent of the signal level. In Fig. 3 the signals are fed through diodes to point 3 so that the potential at 3 follows the largest signal. The diodes are biased from constant current sources 21, 22, and the output from the point is fed to a phase reversing operational amplifier 15. Part of the output of the amplifier is used to so vary the current bias from 22 that the diode circuit current remains constant notwithstanding the increasing current drawn by the operational amplifier as the signal amplitude increases. Diode 19 provides voltage compensation and an input terminal 24 receives an " offset " signal. For selecting the smallest signal the diodes are reversed, Fig. 2 (not shown).
GB21078/65A 1965-05-18 1965-05-18 Electronic signal selector Expired GB1078997A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB21078/65A GB1078997A (en) 1965-05-18 1965-05-18 Electronic signal selector
US548620A US3461315A (en) 1965-05-18 1966-05-09 Electronic signal selector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21078/65A GB1078997A (en) 1965-05-18 1965-05-18 Electronic signal selector

Publications (1)

Publication Number Publication Date
GB1078997A true GB1078997A (en) 1967-08-09

Family

ID=10156833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21078/65A Expired GB1078997A (en) 1965-05-18 1965-05-18 Electronic signal selector

Country Status (2)

Country Link
US (1) US3461315A (en)
GB (1) GB1078997A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2431487A1 (en) * 1973-06-30 1975-01-16 Lucas Industries Ltd CIRCUIT WITH FUNCTIONAL AMPLIFIER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740652A (en) * 1971-11-17 1973-06-19 Monsanto Co Signal selector circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031142A (en) * 1958-05-06 1962-04-24 Acf Ind Inc Minimum quantity selector
US3228002A (en) * 1961-02-02 1966-01-04 Ibm Parallel input extreme signal indicator having a control impedance in a common current path
US3166679A (en) * 1961-04-24 1965-01-19 Link Division Of General Prec Self-regenerative, latching, semiconductor voltage selection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2431487A1 (en) * 1973-06-30 1975-01-16 Lucas Industries Ltd CIRCUIT WITH FUNCTIONAL AMPLIFIER

Also Published As

Publication number Publication date
US3461315A (en) 1969-08-12

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