Switching amplifier
US5077539A · kind A · utility
152Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Dec 26, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/432
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switching amplifier system which in one embodiment includes switching circuitry responsive to a tri-state command signal for providing a power output from a power supply which has amplitude levels, time durations, and polarities corresponding to the tri-state command signal for supply to a load via a suitable filter. A further embodiment includes a linear amplifier, the switching circuitry responding to a fourth state command signal for actuating the linear amplifier to respond directly to an input signal when the amplitude of the input signal is below a selected level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.