Importance

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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.

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First Claim