Audio power amplification with reduced input power supply crest factor
US9231543B2 · kind B2 · utility
4Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Aug 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power converter has an output that is coupled in parallel with an energy reservoir circuit and a power supply node of an audio power amplifier. The converter can set an upper limit on its input supply current that is variable in accordance with a control input. A controller is to produce a signal, coupled to the control input of the power converter, that is responsive to a measure of input supply voltage of the power converter and either output voltage of the power converter or output power of the amplifier. Other embodiments are also described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.