DefinePK

Abstract

This paper proposes to use a magnetic interface to convert the electric charging energy into a magnetic circuit that can couple the energy to the receiving equipment and get re-converted into electric charging current. The Charging head becomes one part of the charger where a high frequency ferrite core is used for creating a high frequency magnetic field in the frequency range 10-30 KHz and power levels of about 500Watts as proof of concept. A power inverter of 500W peak power rating is used to build this high frequency magnetic field creation. The inverter would be built with Power MOSFETs. The charging head, which is in the underwater vehicle, will have to be brought in close proximity to the charging head face without having to establish any electrical links. The charging head and receiving head faces are hermitically sealed for underwater operation. The control system proposed will be able to auto-detect the presence of the charge receiving head and ramp up the charging process to the energy amount needed for a full charge of battery in the underwater vehicle.