SG84291G - A field effect transistor current source - Google Patents

A field effect transistor current source

Info

Publication number
SG84291G
SG84291G SG842/91A SG84291A SG84291G SG 84291 G SG84291 G SG 84291G SG 842/91 A SG842/91 A SG 842/91A SG 84291 A SG84291 A SG 84291A SG 84291 G SG84291 G SG 84291G
Authority
SG
Singapore
Prior art keywords
current source
field effect
effect transistor
transistor current
source
Prior art date
Application number
SG842/91A
Original Assignee
American Telephone & Telegraph
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
Priority claimed from US06/656,343 external-priority patent/US4645948A/en
Application filed by American Telephone & Telegraph filed Critical American Telephone & Telegraph
Publication of SG84291G publication Critical patent/SG84291G/en

Links

Classifications

    • 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
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • 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
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/262—Current mirrors using field-effect transistors only

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)
  • Amplifiers (AREA)
  • Logic Circuits (AREA)
SG842/91A 1984-10-01 1991-10-11 A field effect transistor current source SG84291G (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/656,343 US4645948A (en) 1984-10-01 1984-10-01 Field effect transistor current source
US68599084A 1984-12-24 1984-12-24
PCT/US1985/001805 WO1986002180A1 (en) 1984-10-01 1985-09-18 A field effect transistor current source

Publications (1)

Publication Number Publication Date
SG84291G true SG84291G (en) 1991-11-22

Family

ID=27097177

Family Applications (1)

Application Number Title Priority Date Filing Date
SG842/91A SG84291G (en) 1984-10-01 1991-10-11 A field effect transistor current source

Country Status (8)

Country Link
EP (1) EP0197965B1 (en)
KR (1) KR880700349A (en)
CA (1) CA1252835A (en)
DE (1) DE3581399D1 (en)
ES (1) ES8700502A1 (en)
HK (1) HK44692A (en)
SG (1) SG84291G (en)
WO (1) WO1986002180A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868416A (en) * 1987-12-15 1989-09-19 Gazelle Microcircuits, Inc. FET constant reference voltage generator
US5608314A (en) * 1994-04-11 1997-03-04 Advanced Micro Devices, Inc. Incremental output current generation circuit
FR2866724B1 (en) * 2004-02-20 2007-02-16 Atmel Nantes Sa DEVICE FOR GENERATING AN IMPROVED PRECISION REFERENCE ELECTRICAL VOLTAGE AND CORRESPONDING ELECTRONIC INTEGRATED CIRCUIT
US10205313B2 (en) 2015-07-24 2019-02-12 Symptote Technologies, LLC Two-transistor devices for protecting circuits from sustained overcurrent
KR101954213B1 (en) 2015-09-21 2019-03-05 심프토트 테크놀로지스 엘엘씨 Single-transistor device for circuit protection and autocatalytic voltage conversion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009432A (en) * 1975-09-04 1977-02-22 Rca Corporation Constant current supply
US4051392A (en) * 1976-04-08 1977-09-27 Rca Corporation Circuit for starting current flow in current amplifier circuits

Also Published As

Publication number Publication date
HK44692A (en) 1992-06-26
EP0197965A1 (en) 1986-10-22
EP0197965B1 (en) 1991-01-16
CA1252835A (en) 1989-04-18
KR880700349A (en) 1988-02-22
DE3581399D1 (en) 1991-02-21
ES8700502A1 (en) 1986-10-16
WO1986002180A1 (en) 1986-04-10
ES547346A0 (en) 1986-10-16

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