GB2346749B - High precision current output circuit - Google Patents

High precision current output circuit

Info

Publication number
GB2346749B
GB2346749B GB0012832A GB0012832A GB2346749B GB 2346749 B GB2346749 B GB 2346749B GB 0012832 A GB0012832 A GB 0012832A GB 0012832 A GB0012832 A GB 0012832A GB 2346749 B GB2346749 B GB 2346749B
Authority
GB
United Kingdom
Prior art keywords
output circuit
high precision
current output
precision current
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.)
Expired - Fee Related
Application number
GB0012832A
Other versions
GB2346749A (en
GB0012832D0 (en
Inventor
Kazunari Tsubaki
Norio Ueno
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Priority claimed from JP30027995A external-priority patent/JP3593396B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB0012832D0 publication Critical patent/GB0012832D0/en
Publication of GB2346749A publication Critical patent/GB2346749A/en
Application granted granted Critical
Publication of GB2346749B publication Critical patent/GB2346749B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G05F3/262—Current mirrors using field-effect transistors only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/345—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
GB0012832A 1995-11-17 1996-11-11 High precision current output circuit Expired - Fee Related GB2346749B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30027995A JP3593396B2 (en) 1995-11-17 1995-11-17 Current output circuit
GB9623438A GB2308031B (en) 1995-11-17 1996-11-11 High precision current output circuit

Publications (3)

Publication Number Publication Date
GB0012832D0 GB0012832D0 (en) 2000-07-19
GB2346749A GB2346749A (en) 2000-08-16
GB2346749B true GB2346749B (en) 2000-12-27

Family

ID=26310377

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0012980A Expired - Fee Related GB2347524B (en) 1995-11-17 1996-11-11 High precision current output circuit
GB0012832A Expired - Fee Related GB2346749B (en) 1995-11-17 1996-11-11 High precision current output circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0012980A Expired - Fee Related GB2347524B (en) 1995-11-17 1996-11-11 High precision current output circuit

Country Status (1)

Country Link
GB (2) GB2347524B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8786359B2 (en) 2007-12-12 2014-07-22 Sandisk Technologies Inc. Current mirror device and method
CN115173854B (en) * 2022-09-06 2022-11-29 英彼森半导体(珠海)有限公司 Self-adaptive MOS transistor threshold voltage reduction circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0642072A1 (en) * 1993-09-03 1995-03-08 Siemens Aktiengesellschaft Current mirror

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0642072A1 (en) * 1993-09-03 1995-03-08 Siemens Aktiengesellschaft Current mirror
US5598094A (en) * 1993-09-03 1997-01-28 Siemens Aktiengesellschaft Current mirror

Also Published As

Publication number Publication date
GB2347524A (en) 2000-09-06
GB2346749A (en) 2000-08-16
GB2347524B (en) 2001-01-24
GB0012980D0 (en) 2000-07-19
GB0012832D0 (en) 2000-07-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20111111