csgy65201 发表于 2023-10-13 11:20
手机像素太高了,看都看不清。20N65可代换所有电动车充电器
csgy65201 发表于 2023-10-16 15:52
3845输出给推挽变压器,推挽变压器输出是两个极性相反的驱动,用以驱动2个MOS轮流导通。半桥相对单管而言功 ...
csgy65201 发表于 2023-10-18 14:02
开关管栅极的电阻重点检查下有无开路和阻值变大
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