Variable frequency class D modulator with built in soft clipping and frequency limiting
US6107875A · kind A · utility
18Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Oct 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A class D amplifier 100 has an integrator 10, a comparator 12, and a frequency compensation and gain control (FCGC) circuit 40. The FCGC circuit 40 senses the output and reduces the gain in order to keep the sampling frequency high enough to avoid audio artifacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.