EP0231872A3 - Switching current source - Google Patents

Switching current source Download PDF

Info

Publication number
EP0231872A3
EP0231872A3 EP87101174A EP87101174A EP0231872A3 EP 0231872 A3 EP0231872 A3 EP 0231872A3 EP 87101174 A EP87101174 A EP 87101174A EP 87101174 A EP87101174 A EP 87101174A EP 0231872 A3 EP0231872 A3 EP 0231872A3
Authority
EP
European Patent Office
Prior art keywords
current source
switching current
branches
source transistor
switching transistors
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.)
Granted
Application number
EP87101174A
Other languages
German (de)
Other versions
EP0231872B1 (en
EP0231872A2 (en
Inventor
Rudolf Dr. Koch
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT87101174T priority Critical patent/ATE77180T1/en
Publication of EP0231872A2 publication Critical patent/EP0231872A2/en
Publication of EP0231872A3 publication Critical patent/EP0231872A3/en
Application granted granted Critical
Publication of EP0231872B1 publication Critical patent/EP0231872B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Nonlinear Science (AREA)
  • Control Of Electrical Variables (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Semiconductor Lasers (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

A switched current source includes at least two branches, at least one MOS current source transistor connected in common to each of the at least two branches, and at least two MOS switching transistors each being connected in a respective one of the branches and simultaneously forming an additional current source transistor, the at least one current source transistor being connected as a respective cascode with each of the at least two switching transistors.
EP87101174A 1986-02-03 1987-01-28 Switching current source Expired - Lifetime EP0231872B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101174T ATE77180T1 (en) 1986-02-03 1987-01-28 SWITCHED POWER SOURCE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3603241 1986-02-03
DE3603241 1986-02-03

Publications (3)

Publication Number Publication Date
EP0231872A2 EP0231872A2 (en) 1987-08-12
EP0231872A3 true EP0231872A3 (en) 1989-03-22
EP0231872B1 EP0231872B1 (en) 1992-06-10

Family

ID=6293251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101174A Expired - Lifetime EP0231872B1 (en) 1986-02-03 1987-01-28 Switching current source

Country Status (6)

Country Link
US (1) US4841222A (en)
EP (1) EP0231872B1 (en)
JP (1) JP2782436B2 (en)
KR (1) KR950010132B1 (en)
AT (1) ATE77180T1 (en)
DE (1) DE3779666D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315296C2 (en) * 1993-05-07 2000-03-02 Siemens Ag Current source arrangement for generating multiple reference currents
BE1008031A3 (en) * 1994-01-20 1995-12-12 Philips Electronics Nv Interference DEVICE FOR GENERATING SET FLOW.
GB9404013D0 (en) * 1994-03-02 1994-04-20 Inmos Ltd Current generating unit
EP0735677B1 (en) * 1995-03-31 1999-12-22 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno Oscillator circuit having oscillation frequency independent from the supply voltage value
US5990753A (en) * 1996-01-29 1999-11-23 Stmicroelectronics, Inc. Precision oscillator circuit having a controllable duty cycle and related methods
JP4667781B2 (en) * 2004-07-21 2011-04-13 ルネサスエレクトロニクス株式会社 Current source circuit and differential amplifier
US10193507B1 (en) 2017-07-31 2019-01-29 Analog Devices Global Current switching circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345604A (en) * 1976-01-22 1982-08-24 Vitafin N.V. Long life cardiac pacer with switching power
US4504779A (en) * 1983-03-11 1985-03-12 Hewlett-Packard Company Electrical load drive and control system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244427A (en) * 1975-10-03 1977-04-07 Koyo Kensetsu Kougiyou Kk Fourrway switch cock for gases
JPS56500108A (en) * 1979-03-13 1981-02-05
JPS5990412A (en) * 1982-11-15 1984-05-24 Nec Corp Bidirectional constant current driving circuit
JPS59139723A (en) * 1983-01-31 1984-08-10 Fujitsu Ltd Differential switch circuit
JPS5984930U (en) * 1983-10-26 1984-06-08 富士通株式会社 level shift circuit device
US4525682A (en) * 1984-02-07 1985-06-25 Zenith Electronics Corporation Biased current mirror having minimum switching delay
US4684831A (en) * 1984-08-21 1987-08-04 Applied Micro Circuits Corporation Level shift circuit for interfacing between two different voltage levels using a current mirror circuit
US4684880A (en) * 1986-12-09 1987-08-04 Trw Inc. Reference current generator circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345604A (en) * 1976-01-22 1982-08-24 Vitafin N.V. Long life cardiac pacer with switching power
US4504779A (en) * 1983-03-11 1985-03-12 Hewlett-Packard Company Electrical load drive and control system

Also Published As

Publication number Publication date
ATE77180T1 (en) 1992-06-15
KR950010132B1 (en) 1995-09-07
JPS62184516A (en) 1987-08-12
KR870008242A (en) 1987-09-25
JP2782436B2 (en) 1998-07-30
EP0231872B1 (en) 1992-06-10
EP0231872A2 (en) 1987-08-12
DE3779666D1 (en) 1992-07-16
US4841222A (en) 1989-06-20

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