Power amplifier with low power distortion at output
US7368986B2 · kind B2 · utility
3Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Apr 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/351
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital/analog amplifier includes the following coupled in series: a pulse-width modulator, a control circuit, a power inverter and a filter. The power inverter comprises two transistors series-connected between a power supply terminal and a ground of the amplifier. The control circuit drives the transistors of the power inverter. One output of the filter forms an output of the amplifier to which a load is connected. The amplifier also comprises a capacitive circuit parallel-connected to the output of the power inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.