Sigma-delta modulated power supply
US7301490B2 · kind B2 · utility
11Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Apr 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/456
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a sigma-delta modulated power supply that is operable to sum an input signal and a feedback signal, integrate the summed signal, asynchronously quantize the integrated signal, sample the quantized signal utilizing a pseudo-random osculating signal, and amplify the sampled signal. The power supply enables discrete implementation of a low-cost, spread spectrum controlled, sigma delta modulated power supply for spectrally pure, high efficiency, low EMI power amplification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.