Modulated voltage supply and fault monitoring thereof adapted for use in an RF power amplifier system
US5111158A · kind A · utility
10Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1991 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Jun 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/2178
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An RF power amplifier system is disclosed having a modulated voltage supply and fault monitoring thereof. The modulated DC voltage supply receives an input voltage as well as a modulating signal, such as an audio signal, to provide a modulated voltage which has been amplitude modulated in accordance with the amplitude variations of the modulating signal. Circuitry is provided for providing a variable reference signal which has a magnitude that varies with that of the modulating signal. A fault comparator compares the modulated signal with the variable reference signal and provides a fault signal dependent upon the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.