SE413448B - Symetrisk anordning for att bilda ett variabelt vexelstromsmotstand - Google Patents

Symetrisk anordning for att bilda ett variabelt vexelstromsmotstand

Info

Publication number
SE413448B
SE413448B SE7506779A SE7506779A SE413448B SE 413448 B SE413448 B SE 413448B SE 7506779 A SE7506779 A SE 7506779A SE 7506779 A SE7506779 A SE 7506779A SE 413448 B SE413448 B SE 413448B
Authority
SE
Sweden
Prior art keywords
symetric
create
variable
resistance
symetric device
Prior art date
Application number
SE7506779A
Other languages
English (en)
Swedish (sv)
Other versions
SE7506779L (sv
Inventor
N J Baars
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of SE7506779L publication Critical patent/SE7506779L/
Publication of SE413448B publication Critical patent/SE413448B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
SE7506779A 1974-06-17 1975-06-13 Symetrisk anordning for att bilda ett variabelt vexelstromsmotstand SE413448B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7408034.A NL161318C (nl) 1974-06-17 1974-06-17 Symmetrische inrichting voor het vormen van een regel- bare wisselstroomweerstand.

Publications (2)

Publication Number Publication Date
SE7506779L SE7506779L (sv) 1975-12-18
SE413448B true SE413448B (sv) 1980-05-27

Family

ID=19821555

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7506779A SE413448B (sv) 1974-06-17 1975-06-13 Symetrisk anordning for att bilda ett variabelt vexelstromsmotstand

Country Status (14)

Country Link
JP (1) JPS5329584B2 (xx)
AR (1) AR205571A1 (xx)
AU (1) AU499961B2 (xx)
BR (1) BR7503768A (xx)
CA (1) CA1035468A (xx)
DE (2) DE2560093C3 (xx)
ES (1) ES438562A1 (xx)
FR (1) FR2275070A1 (xx)
GB (1) GB1519831A (xx)
HK (1) HK48679A (xx)
IT (1) IT1036297B (xx)
NL (1) NL161318C (xx)
SE (1) SE413448B (xx)
ZA (1) ZA753735B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52153651A (en) * 1976-06-17 1977-12-20 Sony Corp Gain changing circuit
US4345214A (en) 1980-04-23 1982-08-17 Rca Corporation Variable emitter degeneration gain-controlled amplifier
US4833422A (en) * 1987-09-24 1989-05-23 Burr-Brown Corporation Programmable gain instrumentation amplifier
DE19713571C1 (de) * 1997-04-02 1998-10-01 Telefunken Microelectron Steuerbare Widerstandsanordnung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1320027A (fr) 1961-10-19 1963-03-08 Westinghouse Electric Corp Potentiomètre à semi-conducteur

Also Published As

Publication number Publication date
ES438562A1 (es) 1977-05-16
AU499961B2 (en) 1979-05-10
BR7503768A (pt) 1976-07-06
FR2275070B1 (xx) 1980-03-21
DE2526309A1 (de) 1976-01-02
JPS5116885A (xx) 1976-02-10
DE2560093B2 (de) 1981-04-23
DE2526309B2 (de) 1979-09-20
DE2526309C3 (de) 1980-06-04
CA1035468A (en) 1978-07-25
NL7408034A (nl) 1975-12-19
HK48679A (en) 1979-07-27
DE2560093C3 (de) 1982-01-28
IT1036297B (it) 1979-10-30
AR205571A1 (es) 1976-05-14
NL161318C (nl) 1980-01-15
FR2275070A1 (fr) 1976-01-09
ZA753735B (en) 1977-01-26
SE7506779L (sv) 1975-12-18
JPS5329584B2 (xx) 1978-08-22
GB1519831A (en) 1978-08-02
AU8214675A (en) 1976-12-23
NL161318B (nl) 1979-08-15

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