GB2108796A - A constant current source circuit - Google Patents

A constant current source circuit Download PDF

Info

Publication number
GB2108796A
GB2108796A GB08228970A GB8228970A GB2108796A GB 2108796 A GB2108796 A GB 2108796A GB 08228970 A GB08228970 A GB 08228970A GB 8228970 A GB8228970 A GB 8228970A GB 2108796 A GB2108796 A GB 2108796A
Authority
GB
United Kingdom
Prior art keywords
transistor
current
constant current
current source
source circuit
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Withdrawn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
GB08228970A
Other languages
English (en)
Inventor
Atsushi Ogawa
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB2108796A publication Critical patent/GB2108796A/en
Withdrawn legal-status Critical Current

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
    • G05F3/265—Current mirrors using bipolar transistors only

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (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)
GB08228970A 1981-10-15 1982-10-11 A constant current source circuit Withdrawn GB2108796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16472481A JPS5866129A (ja) 1981-10-15 1981-10-15 定電流源回路

Publications (1)

Publication Number Publication Date
GB2108796A true GB2108796A (en) 1983-05-18

Family

ID=15798683

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08228970A Withdrawn GB2108796A (en) 1981-10-15 1982-10-11 A constant current source circuit

Country Status (3)

Country Link
JP (1) JPS5866129A (it)
DE (1) DE3238301A1 (it)
GB (1) GB2108796A (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214377A (en) * 1987-12-24 1989-08-31 Philips Electronic Associated Current amplifier circuit arrangement
US4999567A (en) * 1988-12-21 1991-03-12 Nec Corporation Constant current circuit

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8302458A (nl) * 1983-07-11 1985-02-01 Philips Nv Stroomstabilisatieschakeling.
NL8400636A (nl) * 1984-02-29 1985-09-16 Philips Nv Stroombronschakeling.
JPH0820915B2 (ja) * 1984-12-31 1996-03-04 ロ−ム株式会社 定電流回路
DE3610158A1 (de) * 1986-03-26 1987-10-01 Telefunken Electronic Gmbh Referenzstromquelle
JP2595545B2 (ja) * 1987-07-16 1997-04-02 ソニー株式会社 定電圧回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214377A (en) * 1987-12-24 1989-08-31 Philips Electronic Associated Current amplifier circuit arrangement
US4999567A (en) * 1988-12-21 1991-03-12 Nec Corporation Constant current circuit

Also Published As

Publication number Publication date
DE3238301A1 (de) 1983-05-05
JPH0321927B2 (it) 1991-03-25
JPS5866129A (ja) 1983-04-20

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)