驱动电路为什么要采取隔离措施

<p>&nbsp; &nbsp; &nbsp;</p><h3 class="title-text" style="margin: 0px; padding: 0px; font-size: 18px; color: rgb(51, 51, 51); font-weight: 400;">驱动电路为什么要采取隔离措施</h3><p>安规问题，驱动电路副边与主电路有耦合关系，而驱动原边是与控制电路连在一起， 主电路是一次电路，控制电路是<a target="_blank" href="https://baike.baidu.com/item/ELV%E7%94%B5%E8%B7%AF?fromModule=lemma_inlink" style="color: rgb(19, 110, 194); text-decoration-line: none;">ELV电路</a>，&nbsp;<a target="_blank" href="https://baike.baidu.com/item/%E4%B8%80%E6%AC%A1%E7%94%B5%E8%B7%AF/1163584?fromModule=lemma_inlink" style="color: rgb(19, 110, 194); text-decoration-line: none;">一次电路</a>和ELV电路之间要做加强绝缘，实现绝缘要求一般就采取变压器光耦等隔离措施。</p><p><a class="lemma-anchor para-title" style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a><a class="lemma-anchor " style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a><a class="lemma-anchor " style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a><a class="lemma-anchor " style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a></p><h3 class="title-text" style="margin: 0px; padding: 0px; font-size: 18px; color: rgb(51, 51, 51); font-weight: 400;">驱动电路采取隔离措施的条件</h3><p><a class="image-link" href="https://baike.baidu.com/pic/%E9%A9%B1%E5%8A%A8%E7%94%B5%E8%B7%AF/2804607/0/faedab64034f78f0269bb52172310a55b2191c4b?fr=lemma&fromModule=lemma_content-image&ct=single" target="_blank" title="需要隔离" style="color: rgb(19, 110, 194); text-decoration-line: none; display: block; width: 220px; height: 152.235px;"><img class="" src="https://bkimg.cdn.bcebos.com/pic/faedab64034f78f0269bb52172310a55b2191c4b?x-bce-process=image/resize,m_lfit,w_440,limit_1" alt="需要隔离" style="border: 0px; display: block; margin: 0px auto; width: 220px; height: 152.235px;"/></a><span class="description" style="display: block; color: rgb(85, 85, 85); font-size: 12px; text-indent: 0px; font-family: 宋体; overflow-wrap: break-word; word-break: break-all; line-height: 24px; padding: 8px 7px; min-height: 12px; border-top: 1px solid rgb(224, 224, 224); user-select: none;">需要隔离</span></p><p>控制参考地与驱动信号参考地（e极） 同<span style="font-weight: 700;">—</span>驱动电路无需隔离；</p><p><a class="image-link" href="https://baike.baidu.com/pic/%E9%A9%B1%E5%8A%A8%E7%94%B5%E8%B7%AF/2804607/0/a71ea8d3fd1f413418bf2aac2e1f95cad0c85e53?fr=lemma&fromModule=lemma_content-image&ct=single" target="_blank" title="无需隔离" style="color: rgb(19, 110, 194); text-decoration-line: none; display: block; width: 220px; height: 197.083px;"><img class="" src="https://bkimg.cdn.bcebos.com/pic/a71ea8d3fd1f413418bf2aac2e1f95cad0c85e53?x-bce-process=image/resize,m_lfit,w_440,limit_1" alt="无需隔离" style="border: 0px; display: block; margin: 0px auto; width: 220px; height: 197.083px;"/></a><span class="description" style="display: block; color: rgb(85, 85, 85); font-size: 12px; text-indent: 0px; font-family: 宋体; overflow-wrap: break-word; word-break: break-all; line-height: 24px; padding: 8px 7px; min-height: 12px; border-top: 1px solid rgb(224, 224, 224); user-select: none;">无需隔离</span></p><p>控制参考地与驱动信号参考地（e极）不同<span style="font-weight: 700;">—</span>驱动电路应隔离。</p><p><a class="lemma-anchor para-title" style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a><a class="lemma-anchor " style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a><a class="lemma-anchor " style="color: rgb(19, 110, 194); position: absolute; top: -50px;"></a></p><p><br/></p>