Low distortion switching amplifier circuits and methods
US7579910B2 · kind B2 · utility
7Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2008 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/351
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention include switching amplifier circuits and methods. In one embodiment, the present invention includes an low distortion method of driving a switching amplifier comprising generating a first pulse width modulated signal on a first terminal, generating a second pulse width modulated signal on a second terminal, and delaying one of the first or second signals. In one embodiment, the modulated signals and delay result in pulse trains near zero crossings to reduce crossover distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.