ES367232A1 - Network having a resistance the temperature coefficient of which is variable at will - Google Patents

Network having a resistance the temperature coefficient of which is variable at will

Info

Publication number
ES367232A1
ES367232A1 ES367232A ES367232A ES367232A1 ES 367232 A1 ES367232 A1 ES 367232A1 ES 367232 A ES367232 A ES 367232A ES 367232 A ES367232 A ES 367232A ES 367232 A1 ES367232 A1 ES 367232A1
Authority
ES
Spain
Prior art keywords
temperature coefficient
network
resistance
transistor
voltage divider
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
ES367232A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES367232A1 publication Critical patent/ES367232A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/462—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
    • G05F1/463—Sources providing an output which depends on temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/18—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using Zener diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

A temperature compensation network having a resistance that exhibits a temperature coefficient that is adjustable substantially independently of the voltage applied to the network. The network includes a resistive voltage divider connected in parallel with the emitter-collector path of a transistor. The base of the transistor is connected to a tapping on the voltage divider. A zener diode having a zero temperature coefficient relative to the transistor temperature coefficient is connected to the voltage divider, whereby the network exhibits a net negative temperature coefficient of resistance.
ES367232A 1968-05-17 1969-05-14 Network having a resistance the temperature coefficient of which is variable at will Expired ES367232A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6806969A NL6806969A (en) 1968-05-17 1968-05-17

Publications (1)

Publication Number Publication Date
ES367232A1 true ES367232A1 (en) 1971-04-01

Family

ID=19803660

Family Applications (1)

Application Number Title Priority Date Filing Date
ES367232A Expired ES367232A1 (en) 1968-05-17 1969-05-14 Network having a resistance the temperature coefficient of which is variable at will

Country Status (7)

Country Link
US (1) US3638049A (en)
BE (1) BE733209A (en)
DE (1) DE1920232B2 (en)
ES (1) ES367232A1 (en)
FR (1) FR2008765A1 (en)
GB (1) GB1250243A (en)
NL (1) NL6806969A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916263A (en) * 1971-12-13 1975-10-28 Honeywell Inf Systems Memory driver circuit with thermal protection
CA995483A (en) * 1973-02-16 1976-08-24 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Transistor anemometer
EP0039215B1 (en) * 1980-04-28 1985-08-07 Fujitsu Limited Temperature compensating voltage generator circuit
DE3019162C2 (en) * 1980-05-20 1985-11-07 Telefunken electronic GmbH, 7100 Heilbronn Transistor ignition circuit
DE3135974A1 (en) * 1981-09-08 1983-03-17 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT WITH A TRANSMITTER, ESPECIALLY WITH A SEMICONDUCTOR PRESSURE SENSOR
US4736126A (en) * 1986-12-24 1988-04-05 Motorola Inc. Trimmable current source
US5099381A (en) * 1989-11-08 1992-03-24 National Semiconductor Corporation Enable circuit with embedded thermal turn-off
WO1993004423A1 (en) * 1991-08-21 1993-03-04 Analog Devices, Incorporated Method for temperature-compensating zener diodes having either positive or negative temperature coefficients
US7132185B2 (en) 2001-12-14 2006-11-07 Ballard Power Systems Inc. Fuel cell system shunt regulator method and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214706A (en) * 1962-01-09 1965-10-26 Burroughs Corp Wide band amplifier with adjustable d.c. output level
US3488529A (en) * 1966-12-14 1970-01-06 Sperry Rand Corp Temperature sensing current source

Also Published As

Publication number Publication date
NL6806969A (en) 1969-05-27
FR2008765A1 (en) 1970-01-23
GB1250243A (en) 1971-10-20
US3638049A (en) 1972-01-25
BE733209A (en) 1969-11-17
DE1920232A1 (en) 1970-09-24
DE1920232B2 (en) 1976-06-10

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