Schaltung zur Kompensation der Drift eines Halbleiterwandlers

摘要

A drift compensating system includes a detecting circuit having at least one semiconductor element to generate an output in proportion to a physical quantity to be applied thereto, a first terminal for providing the output, a switching element, a memory circuit connected to the first terminal through the switching element for memorizing the output upon closure of the switching element, and a second terminal connected to the memory circuit. Upon closure of the switching element the output is applied to the memory circuit to render the first and second terminals to be at the same potential to thereby cancel any drift. Upon a subsequent opening of the switching element, a potential difference appears between the terminals in accordance with any change of the output.