This article proposes a method, based on the dc-bias-voltage-controlled variable capacitor (VC) and variable frequency (VF) regulation, to improve the overall efficiency of the WPT system for portable ...

Abstract: This letter presents an analog–digital variable capacitor realized by monolithic integration of barium strontium titanate (BST) ferroelectric material and phase change material (PCM) ...

School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan, P. R. China School of Mechanical Engineering, Hubei Engineering University, Xiaogan, P. R. China ...

So, why not ditch the bulky battery pack for a capacitor, a simpler electrical storage option that has a long life and is capable of releasing energy almost instantly? Capacitors are common in all ...

These characteristics mean that the supercapacitor can be used in place of existing battery systems. The researchers have shown that it is commercially viable by developing film-like structures ...