Resistive switching schmitt triggers and comparators

Abstract

A resistive switching element can be used in a nonvolatile digital Schmitt trigger circuit or a comparator circuit. The Schmitt trigger circuit can include a resistive switching circuit, and a reset circuit. The resistive switching circuit can provide a hysteresis behavior suitable for Schmitt trigger operation. The reset circuit can be operable to reset the resistive switching circuit to a high resistance state. The comparator circuit can include a resistive switching circuit, a reset circuit, and a threshold setting circuit. The resistive switching circuit can include a resistive switching element, and can be operable to provide a signal comparing an input voltage with the set or reset threshold voltage of the resistive switching element. The threshold setting circuit can be operable to modify the set or reset threshold of the resistive switching element, effectively changing the reference voltage for the comparator circuit.

Dependencies are inferred from the claim text.