Closed loop circuit switch mode power amplifier
US6342809B1 · kind B1 · utility
0Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/34
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch mode power amplifier circuit apparatus comprises a fixed gain amplifier, modulator and a filter circuit electrically configured so as to direct a feedback signal for reducing clock ripple and improving signal fidelity at an output takeoff point in the amplifier circuit. An amplifier output is directed to the modulator and a modulator output is directed into an inductor of the filter circuit. The feedback signal is directed from the filter circuit to an amplifier input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.