FR1510702A - Circuit à atténuation variable - Google Patents
Circuit à atténuation variableInfo
- Publication number
- FR1510702A FR1510702A FR94323A FR94323A FR1510702A FR 1510702 A FR1510702 A FR 1510702A FR 94323 A FR94323 A FR 94323A FR 94323 A FR94323 A FR 94323A FR 1510702 A FR1510702 A FR 1510702A
- Authority
- FR
- France
- Prior art keywords
- attenuation circuit
- variable attenuation
- variable
- circuit
- attenuation
- 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
- 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
-
- 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
-
- 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
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US531626A US3412340A (en) | 1966-03-03 | 1966-03-03 | Variable attenuation circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1510702A true FR1510702A (fr) | 1968-01-19 |
Family
ID=24118403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR94323A Expired FR1510702A (fr) | 1966-03-03 | 1967-02-09 | Circuit à atténuation variable |
Country Status (4)
Country | Link |
---|---|
US (1) | US3412340A (fr) |
DE (1) | DE1512671B1 (fr) |
FR (1) | FR1510702A (fr) |
GB (1) | GB1151285A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539826A (en) * | 1967-09-01 | 1970-11-10 | Ibm | Active variable impedance device for large signal applications |
US3617774A (en) * | 1970-03-04 | 1971-11-02 | Ibm | Automatic phase control circuit |
US3763382A (en) * | 1972-03-01 | 1973-10-02 | Sony Corp | Amplitude control circuit |
DE2448446A1 (de) * | 1974-10-10 | 1976-04-22 | Budapesti Radiotechnikai Gyar | Geraeuscharmer breitband-vorverstaerker fuer tonfrequenzeinrichtungen mit hoher verstaerkungsaenderung, insbesondere zur automatischen pegelregelung |
DE2655320C3 (de) * | 1976-12-07 | 1987-02-12 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Steuerbarer elektronischer Widerstand |
DE102004012248A1 (de) * | 2004-03-12 | 2005-09-29 | Siemens Ag | Kernspintomographiegerät mit verbesserter Anbindung von Versorgungsleitungen beim Einsatz von Insert-Gradientenspulen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1003801B (de) * | 1952-11-19 | 1957-03-07 | Siemens Ag | Verstaerker hoher Linearitaet mit Verstaerkungsregelung durch Beeinflussen einer Gegenkopplung |
AT188752B (de) * | 1953-12-15 | 1957-02-11 | Siemens Ag | Aus mehreren Verstärkerstufen bestehende Verstärkereinheit |
US2873387A (en) * | 1956-12-17 | 1959-02-10 | Rca Corp | Controllable transistor clipping circuit |
DE1071136B (fr) * | 1957-05-24 | |||
DE1047844B (de) * | 1957-12-09 | 1958-12-31 | Koerting Radio Werke G M B H | Niederfrequenzverstaerker mit Dynamikregelung, insbesondere mit Dynamikerweiterung |
DE1247405B (de) * | 1960-06-09 | 1967-08-17 | Telefunken Patent | In einem weiten Bereich regelbarer einstufiger Transistorverstaerker |
FR1357880A (fr) * | 1962-04-11 | 1964-04-10 | Philips Nv | Dispositif de réglage de niveau, en particulier de signaux électriques |
US3231755A (en) * | 1962-09-10 | 1966-01-25 | Northern Electric Co | Remote volume control |
US3268828A (en) * | 1962-11-02 | 1966-08-23 | Burroughs Corp | Amplifier with constant amplitude output |
NL132570C (fr) * | 1963-03-07 |
-
1966
- 1966-03-03 US US531626A patent/US3412340A/en not_active Expired - Lifetime
-
1967
- 1967-02-06 GB GB5605/67A patent/GB1151285A/en not_active Expired
- 1967-02-08 DE DE19671512671 patent/DE1512671B1/de active Pending
- 1967-02-09 FR FR94323A patent/FR1510702A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3412340A (en) | 1968-11-19 |
DE1512671B1 (de) | 1971-02-11 |
GB1151285A (en) | 1969-05-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH456689A (de) | Logischer Schaltkreis | |
AT257989B (de) | Dividierschaltung | |
AT283004B (de) | Kaleidoskop | |
FR1510702A (fr) | Circuit à atténuation variable | |
FR1488779A (fr) | Circuit de conférence | |
AT278436B (de) | Milbenbekämpfungsmittel | |
CH483757A (de) | Entzerrerschaltung | |
CH448224A (de) | Regelschaltung | |
FR1432631A (fr) | Transmission | |
AT294006B (de) | Fälzelgerät | |
FR1536887A (fr) | Circuit anti-local | |
FR1531709A (fr) | Pâte à tartiner | |
YU28343B (cs) | Elektronski bezbedni tajmer | |
FR1472549A (fr) | Poulie variable | |
AT301006B (de) | Kettsamtbahn | |
FR1536594A (fr) | Transmission variable à courroie trapézoïdale | |
FR1513753A (fr) | Circuit de télévision | |
AT274425B (de) | Diawechselvorrichtung | |
FR1480295A (fr) | Inverseur bain-douche | |
BR6791441D0 (pt) | Imidazois | |
CH461063A (de) | Bauelement | |
FR1454090A (fr) | Sélecteur de circuit | |
AT277537B (de) | Biegesteifes Bauelement | |
FR1471195A (fr) | Table à rallonge | |
FR1509570A (fr) | Four à réverbère perfectionné |