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ucc27211驱动问题求大神解析

Other Parts Discussed in Thread: UCC27211

我ucc27211按照datasheet上的连接的,但是我没接mos管(电容用的是1uf的),我测了输出端(输入加互补的pwm)高输出端的波形很正常,但是低输出短的波形在应该是高电平的地方显示的是振荡