Active load clamp for a track-and-hold circuit
US6954168B2 · kind B2 · utility
5Cited by
4References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 2004 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | May 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C27/024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for tracking and holding a voltage. The method includes the steps of providing an external analog voltage on an input of the track and hold circuit during a tracking mode of the track and hold circuit, storing a representation of the sampled external voltage in a storage device of the track and hold circuit, blocking a signal path between the external voltage and the storage device during a holding mode of the track and hold circuit and clamping the input of the track and hold circuit to a predetermined voltage during the holding mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.