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 amplifierInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- 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
- H03G3/20—Automatic control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
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)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293546A (en) * | 1966-12-20 | Self-balancing impedance measuring bridge | ||
| US2996658A (en) * | 1955-12-12 | 1961-08-15 | Schlumberger Well Surv Corp | Magnetic resonance apparatus |
| US3023358A (en) * | 1955-12-12 | 1962-02-27 | Schlumberger Well Surv Corp | Control systems |
| 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 |
-
1948
- 1948-06-19 FR FR1009724D patent/FR1009724A/en not_active Expired
- 1948-11-25 FR FR59084D patent/FR59084E/en not_active Expired
-
1949
- 1949-06-14 GB GB15849/49A patent/GB664644A/en not_active Expired
Cited By (1)
| 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 |
|---|---|
| FR59084E (en) | 1954-04-22 |
| GB664644A (en) | 1952-01-09 |
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