Class D amplifier with current mode control
US11575354B2 · kind B2 · utility
0Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 2021 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Aug 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/462
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An audio amplifier that implements current mode control without the use of an explicit or separate current mode sensor is disclosed. The audio amplifier may include a pair of feedback loops that provide current from a node located before an inductor of an output filter and current from a node located after the inductor of the output filter to an integrator circuit. The integrator circuit may be formed from existing circuitry of the audio amplifier controller. Thus, current mode control can be implemented without a separate current mode sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.