Chopper stabilized amplifier without DC output ripple
US7345529B2 · kind B2 · utility
4Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Oct 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45968
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The chopper stabilized amplifier circuit includes: an amplifier; a first current mirror coupled to an output of the amplifier through a first switch; a second current mirror coupled to the output of the amplifier through a second switch, wherein the first switch is operated out of phase with the second switch; and a summing node for combining currents from the first and second current mirrors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.