BE898832A - CURRENT DIVIDER - Google Patents

CURRENT DIVIDER

Info

Publication number
BE898832A
BE898832A BE2/60326A BE2060326A BE898832A BE 898832 A BE898832 A BE 898832A BE 2/60326 A BE2/60326 A BE 2/60326A BE 2060326 A BE2060326 A BE 2060326A BE 898832 A BE898832 A BE 898832A
Authority
BE
Belgium
Prior art keywords
output
resistor
ratio
current divider
operational amplifier
Prior art date
Application number
BE2/60326A
Other languages
French (fr)
Inventor
P S Bridger
Original Assignee
Int Standard Electric 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
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of BE898832A publication Critical patent/BE898832A/en

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • 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
    • H03F3/347—Dc amplifiers in which all stages are dc-coupled with semiconductor devices only in integrated circuits

Abstract

Une borne de sortie 1 est connectée par une résistance R1 à une source de courant CS. Une autre borne de sortie 2 est connectée par le chemin collecteur-émetteur d'un transistor Q1 et une résistance R2. La borne 1 est aussi connectée à l'entrée directe d'un amplificateur opérationnel OA1, dont l'entrée inverseuse est connectée à l'émetteur de Q1. La sortie de l'amplificateur opérationnel OA1 commande la condition électrique à la base de Q1. Le rapport des deux courants de sortie I1 et I2 est défini par le rapport des résistances.An output terminal 1 is connected by a resistor R1 to a current source CS. Another output terminal 2 is connected by the collector-emitter path of a transistor Q1 and a resistor R2. Terminal 1 is also connected to the direct input of an operational amplifier OA1, whose inverting input is connected to the transmitter of Q1. The output of the operational amplifier OA1 controls the electrical condition at the base of Q1. The ratio of the two output currents I1 and I2 is defined by the ratio of the resistors.

BE2/60326A 1983-02-04 1984-02-03 CURRENT DIVIDER BE898832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08303130A GB2135846B (en) 1983-02-04 1983-02-04 Current splitter

Publications (1)

Publication Number Publication Date
BE898832A true BE898832A (en) 1984-08-03

Family

ID=10537477

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60326A BE898832A (en) 1983-02-04 1984-02-03 CURRENT DIVIDER

Country Status (2)

Country Link
BE (1) BE898832A (en)
GB (1) GB2135846B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1213095B (en) * 1986-05-20 1989-12-07 S G S Microelettrica S P A HIGH CAPACITY CURRENT MIRROR.!
US4897555A (en) * 1988-11-23 1990-01-30 Minnesota Mining And Manufacturing Company Current split circuit having a digital to analog converter
WO2006040739A1 (en) * 2004-10-13 2006-04-20 Koninklijke Philips Electronics, N.V. All n-type transistor high-side current mirror
JP7241565B2 (en) * 2019-02-25 2023-03-17 エイブリック株式会社 current generation circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1266886A (en) * 1968-10-03 1972-03-15
US3536986A (en) * 1968-12-18 1970-10-27 Eastman Kodak Co Low level costant current source
DE2147179C3 (en) * 1971-09-22 1984-11-08 Robert Bosch Gmbh, 7000 Stuttgart Monolithically integrated power source
GB1429338A (en) * 1973-05-17 1976-03-24 Rank Organisation Ltd Electrical supply circuit for a hollow cathode lamp
DE2338215B2 (en) * 1973-07-27 1975-07-31 Robert Bosch Gmbh, 7000 Stuttgart Circuit arrangement for controlling
GB1602296A (en) * 1977-11-15 1981-11-11 Gen Electric Co Ltd Current sources

Also Published As

Publication number Publication date
GB8303130D0 (en) 1983-03-09
GB2135846A (en) 1984-09-05
GB2135846B (en) 1986-03-12

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: INTERNATIONAL STANDARD ELECTRIC CORP.

Effective date: 19870228