Single supply class-D amplifier
US8008969B1 · kind B1 · utility
12Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2010 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Mar 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45594
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Traditionally, switching amplifiers (i.e., class-D and class-G) with negative supply rails had issues with direct current (DC) power loss, included large external capacitors, had a comparative reduction in efficiency, and oftentimes included separate power management circuits. Here, a class-D amplifier is provided with an output stage that provides negative supply voltages, positive supply voltages, and ground. Essentially, this amplifier provides some of the benefits of the conventional amplifiers without the drawbacks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.