High efficiency power amplifying apparatus with phase compensation circuit
US6166596A · kind A · utility
35Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1999 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0222
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A synchronously driven linear power amplifier (6) parallel to class D power amplifier (2) achieves an active filter equivalent, minimizing the scale of the passive filter (3), and effectively suppressing high frequency noise. Signal delay introduced by the passive filter (3) is also compensated by means of a phase compensation circuit (7) for phase compensating an audio signal applied from a signal input terminal (21).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.