Chopper stabilization circuits and methods
US7170338B1 · kind B1 · utility
4Cited by
18References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45396
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An amplifier including a current source transistor for supplying a current to a node from a voltage rail and an input transistor switching the current at the node in response to an input signal chopped by a chopping signal. A cascode-chopping transistor operating both as a cascode transistor and a chopping transistor couples the node and an amplifier output in response to a bias voltage chopped by the chopping signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.