GB2317719B - Reference current circuit and reference voltage circuit - Google Patents

Reference current circuit and reference voltage circuit

Info

Publication number
GB2317719B
GB2317719B GB9725550A GB9725550A GB2317719B GB 2317719 B GB2317719 B GB 2317719B GB 9725550 A GB9725550 A GB 9725550A GB 9725550 A GB9725550 A GB 9725550A GB 2317719 B GB2317719 B GB 2317719B
Authority
GB
United Kingdom
Prior art keywords
circuit
reference voltage
reference current
voltage circuit
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
GB9725550A
Other versions
GB2317719A (en
GB9725550D0 (en
Inventor
Katsuiji Kimura
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.)
NEC Corp
Original Assignee
NEC Corp
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 JP5308162A external-priority patent/JPH07160347A/en
Priority claimed from JP33660493A external-priority patent/JP2734964B2/en
Application filed by NEC Corp filed Critical NEC Corp
Priority claimed from GB9424651A external-priority patent/GB2285152B/en
Publication of GB9725550D0 publication Critical patent/GB9725550D0/en
Publication of GB2317719A publication Critical patent/GB2317719A/en
Application granted granted Critical
Publication of GB2317719B publication Critical patent/GB2317719B/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
    • G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities

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)
  • Control Of Electrical Variables (AREA)
GB9725550A 1993-12-08 1994-12-07 Reference current circuit and reference voltage circuit Expired - Fee Related GB2317719B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5308162A JPH07160347A (en) 1993-12-08 1993-12-08 Reference current circuit and reference voltage circuit
JP33660493A JP2734964B2 (en) 1993-12-28 1993-12-28 Reference current circuit and reference voltage circuit
GB9424651A GB2285152B (en) 1993-12-08 1994-12-07 Reference current circuit and reference voltage circuit

Publications (3)

Publication Number Publication Date
GB9725550D0 GB9725550D0 (en) 1998-02-04
GB2317719A GB2317719A (en) 1998-04-01
GB2317719B true GB2317719B (en) 1998-06-10

Family

ID=27267504

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9725549A Expired - Fee Related GB2317718B (en) 1993-12-08 1994-12-07 Reference current circuit and reference voltage circuit
GB9725550A Expired - Fee Related GB2317719B (en) 1993-12-08 1994-12-07 Reference current circuit and reference voltage circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9725549A Expired - Fee Related GB2317718B (en) 1993-12-08 1994-12-07 Reference current circuit and reference voltage circuit

Country Status (1)

Country Link
GB (2) GB2317718B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263794A (en) * 1992-01-29 1993-08-04 Nec Corp Reference voltage circuit employing bipolar transistors
EP0620515A1 (en) * 1993-04-14 1994-10-19 Texas Instruments Deutschland Gmbh Band gap reference voltage source

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2007055B (en) * 1977-10-21 1982-08-18 Plessey Co Ltd Circuit arrangement
CA2066929C (en) * 1991-08-09 1996-10-01 Katsuji Kimura Temperature sensor circuit and constant-current circuit
US5373226A (en) * 1991-11-15 1994-12-13 Nec Corporation Constant voltage circuit formed of FETs and reference voltage generating circuit to be used therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263794A (en) * 1992-01-29 1993-08-04 Nec Corp Reference voltage circuit employing bipolar transistors
EP0620515A1 (en) * 1993-04-14 1994-10-19 Texas Instruments Deutschland Gmbh Band gap reference voltage source

Also Published As

Publication number Publication date
GB9725549D0 (en) 1998-02-04
GB2317719A (en) 1998-04-01
GB2317718A (en) 1998-04-01
GB9725550D0 (en) 1998-02-04
GB2317718B (en) 1998-06-10

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Legal Events

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