Power supply regulation and protection circuit for audio power amplifier
US6611169B2 · kind B2 · utility
8Cited by
47References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2002 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Apr 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/426
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An audio power amplifier including a rail voltage detection circuit connected to a feedback generator and a rail voltage, the detection circuit is adapted to detect an overvoltage or undervoltage condition and control the feedback signal to a regulated switching power supply to adjust the rail voltage. Additional protection is provided through thermal stress detection and output fault detection to control the feedback signal and protect the audio power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.