EP0202764A3 - Potentiometer - Google Patents

Potentiometer Download PDF

Info

Publication number
EP0202764A3
EP0202764A3 EP86302820A EP86302820A EP0202764A3 EP 0202764 A3 EP0202764 A3 EP 0202764A3 EP 86302820 A EP86302820 A EP 86302820A EP 86302820 A EP86302820 A EP 86302820A EP 0202764 A3 EP0202764 A3 EP 0202764A3
Authority
EP
European Patent Office
Prior art keywords
track
film
potentiometer
networks
terminals
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Withdrawn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
EP86302820A
Other languages
German (de)
French (fr)
Other versions
EP0202764A2 (en
Inventor
George Howard Hester
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.)
Crystalate Electronics Ltd
Original Assignee
Crystalate Electronics 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 Crystalate Electronics Ltd filed Critical Crystalate Electronics Ltd
Publication of EP0202764A2 publication Critical patent/EP0202764A2/en
Publication of EP0202764A3 publication Critical patent/EP0202764A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/106—Detection of demand or actuation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/305—Adjustable resistors the contact sliding along resistive element consisting of a thick film
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
    • H01C10/36—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path structurally combined with switching arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/23—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by opening or closing resistor geometric tracks of predetermined resistive values, e.g. snapistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Adjustable Resistors (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

A potentiometer, particularly suitable for use in automo­ tive engine management systems, comprises a film resist­ ance track (1) on a substrate (2) and terminals (10, 11) for connection to a voltage source. A wiper (3,7) traverses the track (1) and a conductive collector (8) which is connected to a terminal (6) at which an output voltage is obtained. A film resistor network (9A, 9B) is provided at one or both ends of the track (1) in series with the track (1) and the terminals (10, 11), or in parallel with a portion (1A) of the track (1) at one or both ends thereof. The networks (9A, 9B) comprise intercon­ nected resistance elements formed by application of conduc­ tive film links (14A, 14B) to a single film resistance element (12A, 12B), the links (14A, 14B) being selectively severable to allow adjustment, to a predetermined value, of the resistance of the network(s) (9A, 9B) in series with the track (1) or in parallel with the portion (1A) of the track (1). The networks (9A, 9B) allow the output voltage characteristics of the potentiometer with respect to the wiper position, to be adjusted.
EP86302820A 1985-04-17 1986-04-16 Potentiometer Withdrawn EP0202764A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08509773A GB2173955B (en) 1985-04-17 1985-04-17 Potentiometer
GB8509773 1985-04-17

Publications (2)

Publication Number Publication Date
EP0202764A2 EP0202764A2 (en) 1986-11-26
EP0202764A3 true EP0202764A3 (en) 1988-04-20

Family

ID=10577764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302820A Withdrawn EP0202764A3 (en) 1985-04-17 1986-04-16 Potentiometer

Country Status (2)

Country Link
EP (1) EP0202764A3 (en)
GB (1) GB2173955B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214305B (en) * 1987-12-29 1992-01-08 Crystalate Electronics Pedal return arrangement
GB2233506A (en) * 1989-06-21 1991-01-09 Crystalate Electronics Potentiometer
DE4037998A1 (en) * 1990-11-29 1992-06-04 Bosch Gmbh Robert POTENTIOMETER FOR DETERMINING THE POSITION OF A MOVABLE PART
DE10017511C2 (en) * 2000-04-10 2002-04-04 Sirona Dental Systems Gmbh Variable resistance and voltage divider, circuit board and dental device
EP1273889A1 (en) * 2001-07-02 2003-01-08 CTS Corporation Rotational sensor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724759A (en) * 1954-03-04 1955-11-22 Vari Ohm Corp Precision wire wound resistors
GB1500394A (en) * 1976-04-27 1978-02-08 Welwyn Electric Ltd Electrical resistor network
US4134096A (en) * 1977-11-10 1979-01-09 Allen-Bradley Company Trimmable resistor
DE2812928A1 (en) * 1978-03-23 1979-10-04 Agfa Gevaert Ag Adjustment device for voltage divider resistors - involves use of parallel resistive traces which can be cut by laser beam to raise resistance value
DE3405934A1 (en) * 1984-02-18 1985-08-22 Vdo Adolf Schindling Ag, 6000 Frankfurt Potentiometer circuit and a method for trimming an indicator potentiometer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI52780C (en) * 1974-06-18 1977-11-10 Paramic Ab Oy Resistance network with adjustable resistance.
US4172249A (en) * 1977-07-11 1979-10-23 Vishay Intertechnology, Inc. Resistive electrical components
US4378549A (en) * 1977-07-11 1983-03-29 Vishay Intertechnology, Inc. Resistive electrical components
US4201970A (en) * 1978-08-07 1980-05-06 Rca Corporation Method and apparatus for trimming resistors
DE3013830A1 (en) * 1979-10-20 1981-05-14 Duk Man Seoul Moon METHOD FOR PRODUCING A FLEXIBLE RESISTANCE FILM FOR MULTIPLE VOLUME CONTROLS AND MULTIPLE VOLUME CONTROLLER MANUFACTURED WITH THIS METHOD
US4386460A (en) * 1981-05-14 1983-06-07 Bell Telephone Laboratories, Incorporated Method of making multi-megohm thin film resistors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724759A (en) * 1954-03-04 1955-11-22 Vari Ohm Corp Precision wire wound resistors
GB1500394A (en) * 1976-04-27 1978-02-08 Welwyn Electric Ltd Electrical resistor network
US4134096A (en) * 1977-11-10 1979-01-09 Allen-Bradley Company Trimmable resistor
DE2812928A1 (en) * 1978-03-23 1979-10-04 Agfa Gevaert Ag Adjustment device for voltage divider resistors - involves use of parallel resistive traces which can be cut by laser beam to raise resistance value
DE3405934A1 (en) * 1984-02-18 1985-08-22 Vdo Adolf Schindling Ag, 6000 Frankfurt Potentiometer circuit and a method for trimming an indicator potentiometer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 13, no. 5, October 1970, page 1105, New York, US; A. BROSS et al.: "Modular resistor array" *

Also Published As

Publication number Publication date
GB2173955A (en) 1986-10-22
GB8509773D0 (en) 1985-05-22
GB2173955B (en) 1988-12-21
EP0202764A2 (en) 1986-11-26

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Inventor name: HESTER, GEORGE HOWARD