Method of preventing abrupt voltage changes at the outputs of a pair of amplifiers and control circuit for a pair of amplifiers self-configuring in a bridge configuration
US7230482B2 · kind B2 · utility
7Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Feb 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45138
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A common mode control circuit reduces abrupt voltage changes at the outputs of a pair of amplifiers which, in turn, reduces EMI and distortions that occur when the correlation between the signals fed to the four channels of an audio system diminishes. The common mode control circuit generates for each amplifier a reference potential that is a saturated replica of the respective differential input signal of the amplifier that saturates when the amplifier switches to a bridge configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.