Full bridge topology was used in the main circuit, IGBT was used as power switching device, and micro-crystal core was used in mid-frequency transformer.

其主电路采用全桥式拓扑结构，以IGBT管为功率开关器件，中频变压器使用微晶磁心。

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This thesis work has researched the fabrication technics of photonic crystal defect waveguide with air-bridge structure and collecting waveguide;

本论文对空气桥结构光子晶体带隙限制光波导及其接续光波导的制作工艺进行了研究。

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