A Switched Capacitor-Based Single Switch Circuit with Load-Independent Output for Wireless Power Transfer

Double-sided Inductor–Capacitor–Capacitor (LCC) or hybrid compensation network is often used in the traditional methods to realize load-independent output wireless power transfer; however, these require changes of operating frequency network, and adoption more switches components, resulting reduction reliability system. In this article, a single switch topology using switched capacitor was proposed, which can characteristics by only switching branch once, characterized strength fewer simple control, high reliability. The analysis accurate parameter design method were given, sensitivity also carried out. Finally, 180 W charging prototype with 60 V/3 A built proposed topology, confirmed accuracy model practical feasibility strategies.