Sampling frequency reduction for switching amplifiers
US8076971B2 · kind B2 · utility
2Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Mar 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/217
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention is directed toward providing a system and method of reducing RF interference in switching amplifiers without degrading performance. In one embodiment, the sampling rate of coarse high voltage modulated pulsewidths are decreased relative to the sampling rate of fine lower voltage modulated pulsewidths. This reduction in the sampling rate of coarse high voltage modulated pulsewidths results in a reduction in EMI. In addition, the higher sampling rate of the fine lower voltage modulated pulsewidths mitigates the distortion caused by the reduced sampling rate of the coarse pulsewidths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.