Audio amplifier turn-off control circuit
US5703528A · kind A · utility
9Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1994 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Nov 10, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/348
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit comprising a transistor which, when supply is turned off, locks the output of the audio amplifier to the supply line, the potential of which is reduced gradually by a filter capacitor, so that the output voltage follows the supply voltage with the same slope, and is so controlled by the filter capacitor, thus eliminating undesired noise ("popping") at the output caused by electric transients in the audio amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.