Commutating auto zero amplifier
US7907007B2 · kind B2 · utility
2Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2007 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Feb 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45726
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A commutating auto zero amplifier system, comprises a first amplifier (A1), a second amplifier (A2) and a switching arrangement which defines a two phase operation, with one amplifier in an output mode providing the output and the other amplifier in a zeroing mode during each phase. A capacitor arrangement (Cof1. Cot1) stores offset voltages, a buffer amplifier (B) couples the output from the amplifier in the output mode to an input of the amplifier in the zeroing mode. This eliminates voltage swings at the output of an amplifier as it switches between modes of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.