EP0443238A3 - Precision switched current source - Google Patents

Precision switched current source Download PDF

Info

Publication number
EP0443238A3
EP0443238A3 EP19900309885 EP90309885A EP0443238A3 EP 0443238 A3 EP0443238 A3 EP 0443238A3 EP 19900309885 EP19900309885 EP 19900309885 EP 90309885 A EP90309885 A EP 90309885A EP 0443238 A3 EP0443238 A3 EP 0443238A3
Authority
EP
European Patent Office
Prior art keywords
current source
switched current
precision switched
precision
source
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Withdrawn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
EP19900309885
Other versions
EP0443238A2 (en
Inventor
Douglas S. Smith
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.)
Precision Monolithics Inc
Original Assignee
Precision Monolithics Inc
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 Precision Monolithics Inc filed Critical Precision Monolithics Inc
Publication of EP0443238A2 publication Critical patent/EP0443238A2/en
Publication of EP0443238A3 publication Critical patent/EP0443238A3/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Withdrawn legal-status Critical Current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
EP19900309885 1990-02-20 1990-09-10 Precision switched current source Withdrawn EP0443238A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48231990A 1990-02-20 1990-02-20
US482319 1990-02-20

Publications (2)

Publication Number Publication Date
EP0443238A2 EP0443238A2 (en) 1991-08-28
EP0443238A3 true EP0443238A3 (en) 1992-01-08

Family

ID=23915600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900309885 Withdrawn EP0443238A3 (en) 1990-02-20 1990-09-10 Precision switched current source

Country Status (2)

Country Link
EP (1) EP0443238A3 (en)
JP (1) JPH03252217A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10193507B1 (en) 2017-07-31 2019-01-29 Analog Devices Global Current switching circuit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973215A (en) * 1975-08-04 1976-08-03 Rca Corporation Current mirror amplifier
JPS58186817A (en) * 1982-04-24 1983-10-31 Nippon Denso Co Ltd Constant current control circuit
GB2131640A (en) * 1982-12-01 1984-06-20 Plessey Co Plc Switching circuit
US4518921A (en) * 1982-10-18 1985-05-21 At&T Bell Laboratories Track and hold circuit
US4544878A (en) * 1983-10-04 1985-10-01 At&T Bell Laboratories Switched current mirror
US4814644A (en) * 1985-01-29 1989-03-21 K. Ushiku & Co. Basic circuitry particularly for construction of multivalued logic systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656036A (en) * 1979-10-12 1981-05-16 Hitachi Ltd Pulse driving circuit
JPH01128616A (en) * 1987-11-13 1989-05-22 Fujitsu Ltd Current switch circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973215A (en) * 1975-08-04 1976-08-03 Rca Corporation Current mirror amplifier
JPS58186817A (en) * 1982-04-24 1983-10-31 Nippon Denso Co Ltd Constant current control circuit
US4518921A (en) * 1982-10-18 1985-05-21 At&T Bell Laboratories Track and hold circuit
GB2131640A (en) * 1982-12-01 1984-06-20 Plessey Co Plc Switching circuit
US4544878A (en) * 1983-10-04 1985-10-01 At&T Bell Laboratories Switched current mirror
US4814644A (en) * 1985-01-29 1989-03-21 K. Ushiku & Co. Basic circuitry particularly for construction of multivalued logic systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 33 (P-254)(1470) 14 February 1984 & JP-A-58 186 817 ( NIPPON DENSO K.K. ) 31 October 1983 *

Also Published As

Publication number Publication date
EP0443238A2 (en) 1991-08-28
JPH03252217A (en) 1991-11-11

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