Switching regulator and amplifier system
US5506493A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1995 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Mar 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/0227
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage regulator (200) includes a controller (204) which selectively activates a plurality of switching means (208, 210, 214, and 212) in order to select between a first current loop in which an energy storage device is charged by an input supply and a second loop in which the energy storage device is coupled to the output terminal (242) of the regulator (200). The switching from the second current loop to the first is governed by the controller (204) determining that the loop current in the second loop has reached a predetermined level. A first switching audio amplifier (300) is disclosed which uses the voltage regulator (200) to provide a continuously variable output voltage (318) in order to provide for high quality amplification which is independent of the volume setting. A second audio amplifier (400) includes a converter (436) which provides discrete voltage levels to a full wave bridge in order to provide improved audio output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.