Circuit for suppressing the noise produced by switching between two voltage sources
US5241226A · kind A · utility
7Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Dec 11, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/303
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for suppressing the noise produced by the switching of two voltage sources having a direct current offset and connected alternately to the input of an amplification stage. The circuit comprises a low-pass filter between the two voltage sources and the amplification stage, which filter is normally disabled during normal operation of the amplification stage, and is only enabled during switching of the two voltage sources, so as to enable a gradual change in the direct voltage supplied to the input of the amplification stage and due to the offset between the two sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.