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UCC24624 輕載波形異常

Scott Kuo
Prodigy 40 points
Other Parts Discussed in Thread: CSD18533KCS, UCC24624

您好!輸出14V 12A,當輸出為3A時,UCC24624會出現duty 開關不正常,目前mosfet是用CSD18533KCS和UCC24624搭配使用

圖中的CH1(黃色) CH3(紫)為UCC24624 gate波形, CH2(青色)為LLC 諧振電感Vcr 波形,

圖中CH1 (黃色)會看到波形開關異常,請問此現象該如何改善,謝謝!