ES429136A1 - Improvements in the circuit provisions to send the gain of power amplifiers. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements in the circuit provisions to send the gain of power amplifiers. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES429136A1 ES429136A1 ES429136A ES429136A ES429136A1 ES 429136 A1 ES429136 A1 ES 429136A1 ES 429136 A ES429136 A ES 429136A ES 429136 A ES429136 A ES 429136A ES 429136 A1 ES429136 A1 ES 429136A1
- Authority
- ES
- Spain
- Prior art keywords
- translation
- gain
- machine
- legally binding
- *** translate
- 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
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/46—Volume control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Amplifiers (AREA)
- Lasers (AREA)
Abstract
Perfections in the circuit arrangements for controlling the gain of power amplifiers, connected to an electroacoustic transducer, characterized in that the arrangement comprises means for detecting the signal in the electroacoustic transducer, said means being connected in negative feedback to the input of the amplifier. Power or to a preamplifier stage of said power amplifier by means of a circuit comprising a photo-optical coupling. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT330274A IT1005264B (en) | 1974-01-08 | 1974-01-08 | CIRCUIT DEVICE WITH VARIABLE THRESHOLD FOR AUTOMATED CONTROL OF GAIN IN POWER AMPLIFIERS |
Publications (1)
Publication Number | Publication Date |
---|---|
ES429136A1 true ES429136A1 (en) | 1976-11-16 |
Family
ID=11104565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES429136A Expired ES429136A1 (en) | 1974-01-08 | 1974-08-09 | Improvements in the circuit provisions to send the gain of power amplifiers. (Machine-translation by Google Translate, not legally binding) |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2435868A1 (en) |
ES (1) | ES429136A1 (en) |
FR (1) | FR2257173A1 (en) |
IT (1) | IT1005264B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4233566A (en) * | 1978-10-23 | 1980-11-11 | Technical Audio Products Corporation | Distortion free power limiting and clipping prevention circuit |
GB9824776D0 (en) * | 1998-11-11 | 1999-01-06 | Kemp Michael J | Audio dynamic control effects synthesiser |
-
1974
- 1974-01-08 IT IT330274A patent/IT1005264B/en active
- 1974-07-24 FR FR7425759A patent/FR2257173A1/en active Granted
- 1974-07-25 DE DE19742435868 patent/DE2435868A1/en active Pending
- 1974-08-09 ES ES429136A patent/ES429136A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2257173B3 (en) | 1977-05-20 |
IT1005264B (en) | 1976-08-20 |
DE2435868A1 (en) | 1975-07-17 |
FR2257173A1 (en) | 1975-08-01 |
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