ES449248A1 - Circiut arrangement with controllable ampligication and reversible control characteristic - Google Patents
Circiut arrangement with controllable ampligication and reversible control characteristicInfo
- Publication number
- ES449248A1 ES449248A1 ES449248A ES449248A ES449248A1 ES 449248 A1 ES449248 A1 ES 449248A1 ES 449248 A ES449248 A ES 449248A ES 449248 A ES449248 A ES 449248A ES 449248 A1 ES449248 A1 ES 449248A1
- Authority
- ES
- Spain
- Prior art keywords
- impedance
- amplifier
- operating state
- output
- maneuvering
- 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
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
Abstract
Improvements in the construction of amplifiers with adjustable transmission measurement and switchable maneuvering characteristic line, whose transmission measurement is adjustable by means of a maneuvering voltage and which, between two operating states, is switchable with complementary switching characteristics, with a first electronically adjustable impedance, to which the maneuvering voltage is provided and which is located in the first operating state in a counter-coupling path, characterized in that the output of the amplifier through the electronically maneuverable impedance, connected to this output and a second impedance connected in series with the maneuverable impedance, is connected to the reference voltage, because a third impedance is connected between the output of the amplifier and an input of the inverting amplifier with respect to the output signals of the amplifier, because means of communication are provided, with which the connection point between the first and the second impedance can be connected in a first operating state, to the inverting input and, in the other operating state, through a fourth impedance, whose value is equal to the value of the third impedance, in the useful signal path, which contains the amplifier and because the output signals of the amplifier, in an operating state, can be taken directly at the output of the amplifier and, in the other operating state can be taken in the point of connection between the first and second impedances. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752529031 DE2529031C3 (en) | 1975-06-28 | 1975-06-28 | Amplifier with controllable transfer rate and switchable control characteristic |
| DE19752546067 DE2546067C2 (en) | 1975-10-15 | 1975-10-15 | Amplifier with controllable transfer rate and switchable control characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES449248A1 true ES449248A1 (en) | 1977-07-16 |
Family
ID=25769086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES449248A Expired ES449248A1 (en) | 1975-06-28 | 1976-06-25 | Circiut arrangement with controllable ampligication and reversible control characteristic |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT353321B (en) |
| AU (1) | AU498002B2 (en) |
| BR (1) | BR7604154A (en) |
| DK (1) | DK280976A (en) |
| ES (1) | ES449248A1 (en) |
| FR (1) | FR2317808A1 (en) |
| GB (1) | GB1548692A (en) |
| SE (1) | SE410256B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990006547A1 (en) * | 1988-12-05 | 1990-06-14 | Alcatel N.V. | Voltage transducer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1320744A (en) * | 1970-05-08 | 1973-06-20 | Sits Soc It Telecom Siemens | Frequency selective circuit |
| CA955532A (en) * | 1971-04-16 | 1974-10-01 | Masao Tomita | Automatic noise reduction system |
-
1976
- 1976-06-01 AU AU14507/76A patent/AU498002B2/en not_active Expired
- 1976-06-03 GB GB22917/76A patent/GB1548692A/en not_active Expired
- 1976-06-22 DK DK280976A patent/DK280976A/en unknown
- 1976-06-22 AT AT454176A patent/AT353321B/en not_active IP Right Cessation
- 1976-06-23 SE SE7607247A patent/SE410256B/en unknown
- 1976-06-25 ES ES449248A patent/ES449248A1/en not_active Expired
- 1976-06-25 BR BR7604154A patent/BR7604154A/en unknown
- 1976-06-28 FR FR7619620A patent/FR2317808A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2317808A1 (en) | 1977-02-04 |
| ATA454176A (en) | 1979-04-15 |
| GB1548692A (en) | 1979-07-18 |
| SE7607247L (en) | 1976-12-29 |
| BR7604154A (en) | 1977-07-26 |
| AT353321B (en) | 1979-11-12 |
| AU1450776A (en) | 1977-12-08 |
| DK280976A (en) | 1976-12-29 |
| FR2317808B1 (en) | 1982-05-21 |
| SE410256B (en) | 1979-10-01 |
| AU498002B2 (en) | 1979-02-01 |
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