Amplifier power supply with large dynamic headroom
US4521742A · kind A · utility
4Cited by
4References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1984 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Feb 22, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/213
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Audio power amplifier and other related amplifiers (e.g., radio frequency control amplifiers) with means responsive to output power stage VI product to continuously adjust power supply voltage level via a negative feedback signal inversely proportional to VI product, with nonlinearity at upper limit approach and stabilize VI product or dissipation, adjust to varying load impedance, and to allow lower rated power supply components for a given amplifier task compared to prior art approaches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.