Wireless charging system design based on ICPT topology

Abstract

Aiming at the situation that the wired charger for inspection equipment has electrodes that are prone to rust and corrosion, poor contact, and inspection equipment cannot enter and exit the charging dock normally, this paper designs a set of non-contact charging systems. The system consists of two parts, the transmitter board, and the receiver board, mainly including power factor correction, high-frequency inverter, resonant circuit, charging control, circuit protection, and other modules. The transmitter board first converts the utility power into 60 kHz AC power and then transmits it to the receiver board through the resonant network. The receiving board charges the battery through the charging control circuit. The test results show that the wireless charger works stably and reliably, has perfect protection functions, and has a maximum output power of 150 W, which can meet the charging needs of most inspection equipment.