Protection circuit for a power amplifier
US5543760A · kind A · utility
20Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Mar 3, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/52
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A direct current voltages detecting circuit is provided for monitoring output voltage of the power amplifier. A direct current signal is produced when a direct current voltage is detected. A cutoff circuit responds to the direct current signal and renders an output stage of the power amplifier a cutoff state. A failure determining circuit is provided to respond to the direct current signal and to produce an abnormality signal. In response to the abnormality signal, a power supply cutoff circuit operates to cutoff a power supply of the power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.