Low leakage ESD structure for non-contact bio-signal sensors
US8780512B2 · kind B2 · utility
3Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Jul 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/261
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various techniques for providing a low leakage electrostatic discharge (ESD) structure for non-contact bio-signal sensors are disclosed. In some embodiments, a low leakage ESD structure for a capacitive bio-sensor includes a unity gain buffer, and an ESD protection circuit connected to the unity gain buffer, in which the ESD protection circuit includes a diode connected across an input and an output of the unity gain buffer, and in which a voltage range for the ESD protection circuit is configurable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.