GB1226433A - - Google Patents

Info

Publication number
GB1226433A
GB1226433A GB1226433DA GB1226433A GB 1226433 A GB1226433 A GB 1226433A GB 1226433D A GB1226433D A GB 1226433DA GB 1226433 A GB1226433 A GB 1226433A
Authority
GB
United Kingdom
Prior art keywords
sign
conducting
signal
input signal
input
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
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 filed Critical
Publication of GB1226433A publication Critical patent/GB1226433A/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
    • H03K17/687—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 field-effect transistors
    • H03K17/6871—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 field-effect transistors the output circuit comprising more than one controlled field-effect transistor
    • H03K17/6874—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 field-effect transistors the output circuit comprising more than one controlled field-effect transistor in a symmetrical configuration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/08—Circuits for altering the measuring range
    • 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
    • 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
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/25—Arrangements for performing computing operations, e.g. operational amplifiers for discontinuous functions, e.g. backlash, dead zone, limiting absolute value or peak value
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

1,226,433. Transistor polarity insensitive amplifiers. MESSERSCHMITT - BOLKOWBLOHM G.m.b.H. 17 Oct., 1968 [24 Oct., 1967], No. 49258/68. Heading H3T. [Also in Division G4] A negative feedback differential amplifier has the input signal switched to one or other of the input terminals depending upon sign of the signal so that the output signal is always of the same sign. In the circuit shown, when the input signal is of one sign T 1 and T 3 are conducting and T 2 and T 4 non-conducting so that the input signal Uin is applied to input terminal E and negative feedback applied through R 2 . When the signal is of the other sign T 2 and T 4 are conducting and T 1 and T 3 non-conducting so that the input signal is applied to #E, the input terminal is earthed through T 4 and negative feedback is applied through R 4 to point 6. In each case the effective gain is unity. The field-effect switches T 1 -T 4 are controlled by a differential switch T 5 , T 6 in turn controlled at A in dependence upon the sign of the input signal.
GB1226433D 1967-10-24 1968-10-17 Expired GB1226433A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1280306 1967-10-24
DEB95109A DE1280306B (en) 1967-10-24 1967-10-24 Electronic switching arrangement for switching the polarity of an input voltage

Publications (1)

Publication Number Publication Date
GB1226433A true GB1226433A (en) 1971-03-31

Family

ID=25751593

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226433D Expired GB1226433A (en) 1967-10-24 1968-10-17

Country Status (3)

Country Link
DE (1) DE1280306B (en)
FR (1) FR1587204A (en)
GB (1) GB1226433A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944852A (en) * 1970-01-27 1976-03-16 Motor Finance Corporation Electrical switching device and modulator using same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090104B1 (en) * 1982-03-26 1988-01-13 International Business Machines Corporation Dual polarity switchable operational amplifier circuit
EP0711033B1 (en) * 1994-10-31 1998-09-09 STMicroelectronics S.r.l. An operational amplifier which can be switched to different configurations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944852A (en) * 1970-01-27 1976-03-16 Motor Finance Corporation Electrical switching device and modulator using same

Also Published As

Publication number Publication date
DE1280306B (en) 1968-10-17
DE1280306C2 (en) 1970-01-02
FR1587204A (en) 1970-03-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees