Common mode bias circuit
US8803602B2 · kind B2 · utility
1Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Sep 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45604
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bias voltage source for a differential circuit has low output impedance at DC, but considerably higher output impedance within the frequency band of the differential signal being processed, to provide an accurate, well-matched common-mode bias voltage to each component of a differential signal path, while providing a low noise current, minimizing the conversion between common-mode and differential modes, and preserving available headroom, and all without requiring the use of large resistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.