SE7506779L - Symmetriskt arrangemang for att astadkomma en variabel vexelstromsresistans. - Google Patents

Symmetriskt arrangemang for att astadkomma en variabel vexelstromsresistans.

Info

Publication number
SE7506779L
SE7506779L SE7506779A SE7506779A SE7506779L SE 7506779 L SE7506779 L SE 7506779L SE 7506779 A SE7506779 A SE 7506779A SE 7506779 A SE7506779 A SE 7506779A SE 7506779 L SE7506779 L SE 7506779L
Authority
SE
Sweden
Prior art keywords
region
layer
resistance
june
junction
Prior art date
Application number
SE7506779A
Other languages
Unknown language ( )
English (en)
Other versions
SE413448B (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/sv
Publication of SE413448B publication Critical patent/SE413448B/sv

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

Landscapes

  • Bipolar Transistors (AREA)
  • Bipolar Integrated Circuits (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
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 true SE7506779L (sv) 1975-12-18
SE413448B 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 (sv)
AR (1) AR205571A1 (sv)
AU (1) AU499961B2 (sv)
BR (1) BR7503768A (sv)
CA (1) CA1035468A (sv)
DE (2) DE2560093C3 (sv)
ES (1) ES438562A1 (sv)
FR (1) FR2275070A1 (sv)
GB (1) GB1519831A (sv)
HK (1) HK48679A (sv)
IT (1) IT1036297B (sv)
NL (1) NL161318C (sv)
SE (1) SE413448B (sv)
ZA (1) ZA753735B (sv)

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
IT1036297B (it) 1979-10-30
NL161318B (nl) 1979-08-15
ES438562A1 (es) 1977-05-16
GB1519831A (en) 1978-08-02
NL7408034A (nl) 1975-12-19
AU499961B2 (en) 1979-05-10
DE2526309B2 (de) 1979-09-20
DE2560093C3 (de) 1982-01-28
JPS5329584B2 (sv) 1978-08-22
SE413448B (sv) 1980-05-27
ZA753735B (en) 1977-01-26
FR2275070A1 (fr) 1976-01-09
DE2526309C3 (de) 1980-06-04
DE2526309A1 (de) 1976-01-02
DE2560093B2 (de) 1981-04-23
FR2275070B1 (sv) 1980-03-21
HK48679A (en) 1979-07-27
JPS5116885A (sv) 1976-02-10
CA1035468A (en) 1978-07-25
BR7503768A (pt) 1976-07-06
AU8214675A (en) 1976-12-23
AR205571A1 (es) 1976-05-14
NL161318C (nl) 1980-01-15

Similar Documents

Publication Publication Date Title
MY6900300A (en) Miniature semiconductor devices and methods of producing same
JPS54157092A (en) Semiconductor integrated circuit device
GB1041318A (en) Circuits with field effect transistors
GB967270A (en) Molecular electronics semiconductor device
GB1148417A (en) Integrated circuit structures including controlled rectifiers or their structural equivalents and method of making the same
GB1073551A (en) Integrated circuit comprising a diode and method of making the same
GB1244926A (en) Improvements in or relating to electrical control circuit arrangements
SE7506779L (sv) Symmetriskt arrangemang for att astadkomma en variabel vexelstromsresistans.
JPS5721838A (en) Semiconductor device
GB1334745A (en) Semiconductor devices
GB1502122A (en) Semiconductor devices
GB1182325A (en) Improvements in and relating to Semiconductor devices
GB967365A (en) Semiconductor devices
GB1531811A (en) Complementary transistors and their manufacture
GB1313915A (en) Resistors for integrated circuits
GB1021147A (en) Divided base four-layer semiconductor device
GB1300033A (en) Integrated circuits
GB1481184A (en) Integrated circuits
GB1496306A (en) Semiconductor integrated circuit including an epitaxial base type vertical transistor
JPS5588372A (en) Lateral type transistor
JPS6484733A (en) Semiconductor device
GB1525469A (en) Transistors
JPS5263080A (en) Production of semiconductor integrated circuit device
GB1249812A (en) Improvements relating to semiconductor devices
GB1488732A (en) Integrated circuit devices and to their manufacture

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7506779-3

Effective date: 19950110

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 7506779-3

Format of ref document f/p: F