| Following the trend of small, thin and light for developing of the switch power at the present time, planer integrated magnetic element concept is introduced in this thesis. After the methods of proposing magnetic circuit mode and of equivalent transform between reluctance modes are summarized, the novel methods to derive integration magnetic converters and the general equivalent electrical circuit of magnetics are put forward. Furthermore, a LLC resonant converter is proposed for Front End DC/DC conversion and several integrated magnetic designs for LLC resonant converter are investigated and compared base on the general model for integrated magnetic structure. Finally, the method of designing planer integrated magnetic element is discussed and a planer integrated magnetic element is designed for LLC resonant converter. |
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