FR1009724A - Method and device for thermistor regulation of the output voltage of an amplifier - Google Patents

Method and device for thermistor regulation of the output voltage of an amplifier

Info

Publication number
FR1009724A
FR1009724A FR1009724DA FR1009724A FR 1009724 A FR1009724 A FR 1009724A FR 1009724D A FR1009724D A FR 1009724DA FR 1009724 A FR1009724 A FR 1009724A
Authority
FR
France
Prior art keywords
thermistor
amplifier
regulation
output voltage
voltage
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
Other languages
French (fr)
Inventor
Christian Chalhoub
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 filed Critical
Application granted granted Critical
Publication of FR1009724A publication Critical patent/FR1009724A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • 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
    • H03G1/0041—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using thermistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
FR1009724D 1948-06-19 1948-06-19 Method and device for thermistor regulation of the output voltage of an amplifier Expired FR1009724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1009724T 1948-06-19

Publications (1)

Publication Number Publication Date
FR1009724A true FR1009724A (en) 1952-06-03

Family

ID=9568391

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1009724D Expired FR1009724A (en) 1948-06-19 1948-06-19 Method and device for thermistor regulation of the output voltage of an amplifier
FR59084D Expired FR59084E (en) 1948-06-19 1948-11-25 Method and device for thermistor regulation of the output voltage of an amplifier

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR59084D Expired FR59084E (en) 1948-06-19 1948-11-25 Method and device for thermistor regulation of the output voltage of an amplifier

Country Status (2)

Country Link
FR (2) FR1009724A (en)
GB (1) GB664644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275345A (en) * 1977-11-09 1981-06-23 Tait David A G A.C. Impedance measuring circuit with thermally controlled resistive element

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293546A (en) * 1966-12-20 Self-balancing impedance measuring bridge
US3023358A (en) * 1955-12-12 1962-02-27 Schlumberger Well Surv Corp Control systems
US2996658A (en) * 1955-12-12 1961-08-15 Schlumberger Well Surv Corp Magnetic resonance apparatus
DE1058559B (en) * 1957-11-26 1959-06-04 Philips Nv Control circuit for electric amplifier
US3173110A (en) * 1960-03-15 1965-03-09 Spencer Kennedy Lab Inc Temperature compensating device having a thermistor in the grid-to-cathode biasing circuit of the amplifier
US3218570A (en) * 1963-01-28 1965-11-16 Northern Electric Co Automatic variable attenuator circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275345A (en) * 1977-11-09 1981-06-23 Tait David A G A.C. Impedance measuring circuit with thermally controlled resistive element

Also Published As

Publication number Publication date
GB664644A (en) 1952-01-09
FR59084E (en) 1954-04-22

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