根据设计软件设计,画原理图,现在实物板测试,发现输入20V,UC3843 6脚没有输出,而且8脚也没有5V输出,要输入60V左右,8脚才能有5V输出,找不到头绪,大家帮我看看。 网址:webench.ti.com/.../webench5.cgi
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根据设计软件设计,画原理图,现在实物板测试,发现输入20V,UC3843 6脚没有输出,而且8脚也没有5V输出,要输入60V左右,8脚才能有5V输出,找不到头绪,大家帮我看看。 网址:webench.ti.com/.../webench5.cgi