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UCC3803无法正常

Other Parts Discussed in Thread: UC3843, UCC3803

专案之前使用的用的是uc3843,12V供电,现改为5V供电,芯片更换为UCC3803,即电路设计为:输入5V,输出正负6.2V,芯片更换,外围线路未变更,参考原理图如附件UCC3803.docx