Audio bridge circuit
US4283683A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1979 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | May 29, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/3081
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit responsive to applied audio signals for amplifying the same and providing the amplified signals across differential output terminals. The circuit comprising an audio amplifying section which is responsive to the audio input signals for amplifying the same and a feedback circuit connected across the output terminals for providing a feedback signal to the amplifier section to reduce any direct current offset voltage errors appearing across the output terminals to a minimum value. Additionally, the amplifier section includes circuitry for setting the quiescent voltage bias levels of the output terminals to a predetermined level and for providing common-mode rejection of voltage supply line ripple.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.