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F28027 LLC电源

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你好:有个问题请教下,目前在用F28027做一款LLC电源,软件参考TMDSHVRESLLCKIT_v1.0例程。在High-Voltage Half-Bridge LLC Resonant DC/DCConverter with Synchronous Rectification Kit Software Reference Guide文档中开环调试时,周期与输出电压的关系为反比“15. Carefully adjust “Period” and verify that “Gui_Vout” increases when you decrease “Period” and that it decreases when you increase “Period”.”

    这个和我的实试电路开环调试不一样,我开环时周期与输出电压的关系是正比。增加周期值(频率降低),输出电压升高;减小周期值(频率升高),输出电压降低。根据LLC的增益曲线来看,周期与输出电压应该是正比的呀。是我哪里理解错了吗???请高人指教。谢谢!


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