The principle behind Flyback converters is based on the storage of energy in the inductor during the charging, or the “on period”, t_on, and the discharge of the energy to the load during the “off period”, t_off. There are four basic types that are the most common, energy storage, inductor type converter circuits: step down, or buck converter, step up, or boost converter, inverting, buck-boost converter and isolated, buck-boost converter. The Continuous Mode demands a high current flowing through the switch during turn-on, and can lead to high switch dissipation. The Isolated Buck-Boost Converter can provide line isolation, and also has the capability of multiple outputs, which require only a diode and a capacitor; the filter inductor is built-in. The skin effect on an inductor is the same as a transformer. In the discontinuous, flyback design, the skin effect has to be treated just like a high frequency transformer.