Resistive bridge interface circuit
US6433524B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R17/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A resistive bridge interface circuit includes: (a) a pair of input power terminals; and (b) a resistive bridge circuit that includes a pair of parallel resistive branches coupled between the pair of input power terminals; (c) where each resistive branch of the resistive bridge interface circuit includes a voltage output terminal and a switch incorporated in series with the resistive branch; and (d) where each switch is activated at a duty cycle. In one embodiment, at least one of the resistive branches includes a variable resistor incorporated in series therewith. In an alternate embodiment, each resistive branch includes a variable resistor incorporated in series therewith, where such variable resistors vary in response to an environmental condition (such as strain experienced by the variable resistors) in opposite directions with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.