CA1015401A - Controllable current source - Google Patents

Controllable current source

Info

Publication number
CA1015401A
CA1015401A CA180,194A CA180194A CA1015401A CA 1015401 A CA1015401 A CA 1015401A CA 180194 A CA180194 A CA 180194A CA 1015401 A CA1015401 A CA 1015401A
Authority
CA
Canada
Prior art keywords
current source
controllable current
controllable
source
current
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
Application number
CA180,194A
Inventor
Dirk Boer
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1015401A publication Critical patent/CA1015401A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using a variable impedance controlled by one of the input signals, variable amplification or transfer function
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
CA180,194A 1972-09-09 1973-09-04 Controllable current source Expired CA1015401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7212293A NL7212293A (en) 1972-09-09 1972-09-09

Publications (1)

Publication Number Publication Date
CA1015401A true CA1015401A (en) 1977-08-09

Family

ID=19816901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA180,194A Expired CA1015401A (en) 1972-09-09 1973-09-04 Controllable current source

Country Status (7)

Country Link
JP (1) JPS5412619B2 (en)
CA (1) CA1015401A (en)
DE (1) DE2342325A1 (en)
FR (1) FR2199145B1 (en)
GB (1) GB1444765A (en)
IT (1) IT993882B (en)
NL (1) NL7212293A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM383162U (en) * 2009-12-16 2010-06-21 Macroblock Inc Analog multiplier

Also Published As

Publication number Publication date
JPS5412619B2 (en) 1979-05-24
NL7212293A (en) 1974-03-12
JPS4968249A (en) 1974-07-02
AU6005073A (en) 1975-03-06
GB1444765A (en) 1976-08-04
IT993882B (en) 1975-09-30
FR2199145A1 (en) 1974-04-05
FR2199145B1 (en) 1978-11-10
DE2342325A1 (en) 1974-03-21

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