System for allowing below-ground and rail-to-rail input voltages
US6232821A · kind A · utility
1Cited by
4References
1Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 15, 2000 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jan 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A capacitively isolated input system that permits sensing of an input voltage with a below-ground value or a below-substrate voltage value. Multiple input signals are received, and each input signal is connected to cross-connected switching components. Switched output signals are capacitively connected to additional switching components and to a sensing amplifier. This system allows the sensing amplifier to receive capacitively isolated input signals and to provide corresponding output signals at voltages no lower than ground voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.