Class-D amplifier
US7183840B2 · kind B2 · utility
8Cited by
0References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Feb 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/2171
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A class-D amplifier for pulse-width-modulating an analog input signal to output a pulse-width-modulated signal, includes: a differentiating circuit for differentiating the pulse-width-modulated signal of the class-D amplifier; and a negative feedback circuit for feeding back the differentiated signal of the differentiating circuit to an input side of the class-D amplifier in a negative feedback manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.