Cockcroft-Walton Multiplier based on Unipolar$mathbf{Ag/HfO_{2}/Pt}$Threshold Switch

摘要

Threshold switches (TS) exhibiting electrically driven phase transition between high resistance (insulating) and low resistance (metallic) states have shown an immense promise for several circuit applications [1].n$mathrm{Ag}/mathrm{HfO}_{2}/mathrm{Pt} mathrm{based}$nTS, a recent inclusion in this group, was reported to have high selectivityn$(sim 10^{7})$nand unipolar conduction [2], [3]. The unipolar nature of such a TS may be capitalized to achieve diode-like rectifying behavior with unique advantages. In this work, we discuss the meritsn$ofAg/HfO_{2}/Pt TS$nover standard diodes and present a Cockcroft-Walton multiplier (CWM) [4], [5] based onn$Ag/HfO_{2}/Pt$n. The proposed CWM generates higher DC voltage from an AC input compared to standard CWM, utilizing (a) high selectivity (b) hysteretic behavior (c) abruptn$insulatorleftrightarrow metal$ntransitions and (d) unipolar conductionn$ofAg/HfO_{2}/Pt$n.