我用UCC27200做了一个全桥驱动,我按照官方的芯片手册画出电路图,我上电发现不能驱动,我检查了没个引脚的电压,结果发现HB引脚的电压比HS的电压低,而HS的电压为电源电压12V。又没哟偶大佬知道是什么问题,求解答。在线等
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