FR2320657A1 - Multiple decade voltage selector - uses few precision resistors with summing amplifier output for instrumentation use - Google Patents

Multiple decade voltage selector - uses few precision resistors with summing amplifier output for instrumentation use

Info

Publication number
FR2320657A1
FR2320657A1 FR7532193A FR7532193A FR2320657A1 FR 2320657 A1 FR2320657 A1 FR 2320657A1 FR 7532193 A FR7532193 A FR 7532193A FR 7532193 A FR7532193 A FR 7532193A FR 2320657 A1 FR2320657 A1 FR 2320657A1
Authority
FR
France
Prior art keywords
amplifier output
summing amplifier
voltage selector
precision resistors
decade
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.)
Withdrawn
Application number
FR7532193A
Other languages
French (fr)
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of FR2320657A1 publication Critical patent/FR2320657A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

The multiple-decade voltage divider circuit comprises a potential divider network of nine resistors (R1-R9) across a reference voltage supply (Un). Parallel-connected single-pole switches - one for each decade- are used to select the desired combination of resistors. The output of each decade switch is connected to the non-inverting input of an operational amplifier (SP1). Each amplifier acts as a buffer between the switch and the load circuit. The output load resistor for each amplifier is a summing resistor (1/1OR, R, 1OR), the summing point being connected to the inverting input of a further operation amplifier.
FR7532193A 1975-08-06 1975-10-21 Multiple decade voltage selector - uses few precision resistors with summing amplifier output for instrumentation use Withdrawn FR2320657A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752535049 DE2535049B1 (en) 1975-08-06 1975-08-06 MULTI-DECADIC VOLTAGE GENERATOR

Publications (1)

Publication Number Publication Date
FR2320657A1 true FR2320657A1 (en) 1977-03-04

Family

ID=5953325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532193A Withdrawn FR2320657A1 (en) 1975-08-06 1975-10-21 Multiple decade voltage selector - uses few precision resistors with summing amplifier output for instrumentation use

Country Status (2)

Country Link
DE (1) DE2535049B1 (en)
FR (1) FR2320657A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438846A1 (en) * 1978-10-12 1980-05-09 Riken Denshi Co Ltd VALUE RANGE SWITCH FOR ELECTRICAL MEASURING DEVICE

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706431A1 (en) * 1977-02-16 1978-08-17 Hartmann & Braun Ag CIRCUIT ARRANGEMENT FOR LINEARIZATION OF THE CHARACTERISTICS OF ANY MEASURING ENCODER
DE3119342C2 (en) * 1981-05-15 1985-07-04 Novotechnik Kg Offterdinger Gmbh & Co, 7302 Ostfildern Compensation measuring arrangement based on the potentiometer method
DE3826767A1 (en) * 1988-08-06 1990-02-08 Kostal Leopold Gmbh & Co Kg Sensor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438846A1 (en) * 1978-10-12 1980-05-09 Riken Denshi Co Ltd VALUE RANGE SWITCH FOR ELECTRICAL MEASURING DEVICE

Also Published As

Publication number Publication date
DE2535049B1 (en) 1977-01-13

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Legal Events

Date Code Title Description
ST Notification of lapse