我现在用UC3843控制MOS管来做boost升压电路,测量UC3843的6脚输出波形发现,只有几个周期有波形,其它时间输出波形一直为低。24VDC升压到120VDC,0.25A,开关频率为220K。请问这是为什么?
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我现在用UC3843控制MOS管来做boost升压电路,测量UC3843的6脚输出波形发现,只有几个周期有波形,其它时间输出波形一直为低。24VDC升压到120VDC,0.25A,开关频率为220K。请问这是为什么?