Audio amplifier assemblies, processes, and methods
US11063565B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2019 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | May 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/321
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier having one or more channels where each channel includes a two half bridges (a master and slave sub-channel). The sub-channels can be connected either in parallel or in a full-bridge configuration via internal switches that route signals to a pair of speaker jacks. One switch in the amplifier has a first position that selectively connects the outputs of the master and slave sub-channel to the same input of the speaker load so that the two sub-channels will drive the speaker load in parallel and a second position where the output of the slave sub-channel is connected to another input of the speaker load so that the master sub-channel and the slave sub-channel will drive the speaker load in a Full-bridge configuration. A second switch has a first position that connects a second input of the speaker load to ground or reference potential of the sub-channels when the speaker load is to be driven in parallel and a second position that is a No-connect position that is used when the speaker load is driven in the Full-bridge configuration and a ground potential is not to be connected to the speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.