Audio amplifying circuit
US6765437B2 · kind B2 · utility
4Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/305
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifying circuit receiving an input voltage and a reference voltage equal to a fraction of the circuit supply voltage, the reference voltage provided by a time constant circuit, including a circuit for, upon power-on, inhibiting the amplifying circuit for as long as the difference between the value of the provided reference voltage and the voltage at the output of the time constant circuit is greater than a determined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.