DK140648C - - Google Patents
Info
- Publication number
- DK140648C DK140648C DK233272A DK233272A DK140648C DK 140648 C DK140648 C DK 140648C DK 233272 A DK233272 A DK 233272A DK 233272 A DK233272 A DK 233272A DK 140648 C DK140648 C DK 140648C
- Authority
- DK
- Denmark
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
- H03G1/0017—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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7106620.A NL166162C (nl) | 1971-05-14 | 1971-05-14 | Versterkerschakeling met regelbare versterking. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK140648B DK140648B (da) | 1979-10-15 |
| DK140648C true DK140648C (nl) | 1980-03-03 |
Family
ID=19813154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK233272AA DK140648B (da) | 1971-05-14 | 1972-05-10 | Forstærkerkreds med indstillelig forstærkning. |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3921091A (nl) |
| JP (1) | JPS5213903B1 (nl) |
| AU (1) | AU467518B2 (nl) |
| BE (1) | BE783419A (nl) |
| CA (1) | CA951386A (nl) |
| DE (1) | DE2223244C3 (nl) |
| DK (1) | DK140648B (nl) |
| ES (1) | ES402652A1 (nl) |
| FR (1) | FR2139535A5 (nl) |
| GB (1) | GB1376059A (nl) |
| IT (1) | IT958845B (nl) |
| NL (1) | NL166162C (nl) |
| SE (1) | SE385756B (nl) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3891937A (en) * | 1972-12-21 | 1975-06-24 | Philips Corp | Circuit arrangement for electronic gain/control, in particular electronic volume control circuit |
| US4030042A (en) * | 1975-06-09 | 1977-06-14 | Rca Corporation | Feedback amplifiers |
| US3991272A (en) * | 1975-09-08 | 1976-11-09 | Tarr Lloyd A | Audio AGC amplifier |
| US4114499A (en) * | 1977-01-27 | 1978-09-19 | Von Valtier Eric | Method and apparatus for securing vibrato and tremolo effects |
| US4335361A (en) * | 1977-09-01 | 1982-06-15 | Honeywell Inc. | Variable gain amplifier |
| US4155047A (en) * | 1978-01-11 | 1979-05-15 | Baskind David Lee | Voltage controlled attenuator |
| US4187472A (en) * | 1978-01-30 | 1980-02-05 | Beltone Electronics Corporation | Amplifier employing matched transistors to provide linear current feedback |
| NL7802973A (nl) * | 1978-03-20 | 1979-09-24 | Philips Nv | Versterkerschakeling met regelbare versterkings- factor. |
| NL7803561A (nl) * | 1978-04-04 | 1979-10-08 | Philips Nv | Regelschakeling. |
| US4284945A (en) * | 1978-12-26 | 1981-08-18 | Rca Corporation | Current dividers using emitter-coupled transistor pairs |
| US4259642A (en) * | 1978-12-29 | 1981-03-31 | Bell Telephone Laboratories, Incorporated | Repeater feedback circuit |
| JPS5646312A (en) * | 1979-09-21 | 1981-04-27 | Toshiba Corp | Variable gain circuit |
| NL8602409A (nl) * | 1986-09-24 | 1988-04-18 | Philips Nv | Regelbare versterker. |
| DE3729656A1 (de) * | 1987-09-04 | 1989-03-23 | Thomson Brandt Gmbh | Schaltungsanordnung zur unterdrueckung von stoergeraeuschen |
| US4816772A (en) * | 1988-03-09 | 1989-03-28 | Rockwell International Corporation | Wide range linear automatic gain control amplifier |
| JPH0250607A (ja) * | 1988-08-12 | 1990-02-20 | Sanyo Electric Co Ltd | 利得制御増幅回路 |
| US4878031A (en) * | 1989-03-06 | 1989-10-31 | Motorola, Inc. | Class B variable gain control circuit |
| US6798291B2 (en) * | 2002-11-12 | 2004-09-28 | Koninklijke Philips Electronics N.V. | Variable gain current amplifier with a feedback loop including a differential pair |
| US7977931B2 (en) * | 2008-03-18 | 2011-07-12 | Qualcomm Mems Technologies, Inc. | Family of current/power-efficient high voltage linear regulator circuit architectures |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3323078A (en) * | 1964-05-01 | 1967-05-30 | Ampex | Transistorized bounce compensated remote variable gain control |
| US3502997A (en) * | 1965-10-24 | 1970-03-24 | Motorola Inc | Integrated semiconductor cascode amplifier |
| US3512096A (en) * | 1967-05-31 | 1970-05-12 | Hitachi Ltd | Transistor circuit having stabilized output d.c. level |
| DE1929253A1 (de) * | 1969-06-10 | 1970-12-17 | Licentia Gmbh | Regelbare Verstaerkerstufe |
| DE2047125A1 (de) * | 1970-09-24 | 1972-04-13 | Siemens Ag | Anordnung zur Regelung der Ausgangsspannung eines Verstärkers |
-
1971
- 1971-05-14 NL NL7106620.A patent/NL166162C/nl not_active IP Right Cessation
-
1972
- 1972-05-08 AU AU42006/72A patent/AU467518B2/en not_active Expired
- 1972-05-10 SE SE7206223A patent/SE385756B/xx unknown
- 1972-05-10 IT IT68478/72A patent/IT958845B/it active
- 1972-05-10 DK DK233272AA patent/DK140648B/da unknown
- 1972-05-11 CA CA141,868,A patent/CA951386A/en not_active Expired
- 1972-05-11 GB GB2206472A patent/GB1376059A/en not_active Expired
- 1972-05-12 DE DE2223244A patent/DE2223244C3/de not_active Expired
- 1972-05-12 ES ES402652A patent/ES402652A1/es not_active Expired
- 1972-05-12 BE BE783419A patent/BE783419A/xx unknown
- 1972-05-12 JP JP47046576A patent/JPS5213903B1/ja active Pending
- 1972-05-15 FR FR7217266A patent/FR2139535A5/fr not_active Expired
-
1975
- 1975-01-16 US US541445A patent/US3921091A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU4200672A (en) | 1973-11-15 |
| DE2223244C3 (de) | 1981-04-30 |
| ES402652A1 (es) | 1975-04-01 |
| GB1376059A (en) | 1974-12-04 |
| DE2223244B2 (de) | 1980-09-04 |
| NL7106620A (nl) | 1972-11-16 |
| DK140648B (da) | 1979-10-15 |
| FR2139535A5 (nl) | 1973-01-05 |
| US3921091A (en) | 1975-11-18 |
| JPS5213903B1 (nl) | 1977-04-18 |
| BE783419A (fr) | 1972-11-13 |
| IT958845B (it) | 1973-10-30 |
| NL166162B (nl) | 1981-01-15 |
| NL166162C (nl) | 1981-06-15 |
| AU467518B2 (en) | 1975-12-04 |
| CA951386A (en) | 1974-07-16 |
| SE385756B (sv) | 1976-07-19 |
| DE2223244A1 (de) | 1972-11-23 |