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一般在开关电æºå˜åŽ‹å™¨çš„é“芯ä¸éƒ½ä¼šäº§ç”Ÿç£åœº</h3>
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<span>æ–‡ç« å‡ºå¤„ï¼?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电å有é™å…¬å?/a></a></span><span>网责任编辑：<a href="http://cfdz.nsw888.com">NSW</a></span><span>作者：<a href="http://cfdz.nsw888.com">NSW</a></span><span>人气ï¼?span
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<p><strong>开关电æºå˜åŽ‹å™¨</strong>一般都是工作于开关状æ€ï¼›å½“输入电压为直æµè„‰å†²ç”µåŽ‹æ—¶ï¼Œç§°ä¸ºå•æžæ€§è„‰å†²è¾“入，如å•æ¿€å¼å˜åŽ‹å™¨å¼€å…³ç”µæºï¼›å½“输入电压为交æµè„‰å†²ç”µåŽ‹æ—¶ï¼Œç§°ä¸ºåŒæžæ€§è„‰å†²è¾“入，如åŒæ¿€å¼å˜åŽ‹å™¨å¼€å…³ç”µæºï¼›å› æ¤ï¼Œå˜åŽ‹å™¨ä¹Ÿå¯ä»¥ç§°ä¸ºè„‰å†²å˜åŽ‹å™¨ï¼Œå› 为其输入电压是一åºåˆ—脉冲；ä¸è¿‡è¦çœŸæ£è¾ƒé‡èµ·æ¥çš„时候，å˜åŽ‹å™¨ä¸Žè„‰å†²å˜åŽ‹å™¨åœ¨å·¥ä½œåŽŸç†ä¸Šè¿˜æ˜¯æœ‰åŒºåˆ«çš„ã€?/p>
<p>在开关电æºå˜åŽ‹å™¨çš„é“芯ä¸å°±ä¼šäº§ç”Ÿç£åœºï¼Œå˜åŽ‹å™¨çš„é“芯就会被ç£åŒ–，在ç£åœºå¼ºåº¦ä¸ºHçš„ç£åœºä½œç”¨ä¸‹åˆä¼šäº§ç”Ÿç£é€šå¯†åº¦ä¸ºBçš„ç£åŠ›çº¿é€šé‡ï¼Œç®€ç§°ç£é€šï¼Œç”?ldquo;Φ ”表示；ç£é€šå¯†åº¦B或ç£é€?Phi;å—ç£åœºå¼ºåº¦H的作用而å‘生å˜åŒ–的过程，称为ç£åŒ–过程。所谓的励ç£ç”µæµï¼Œå°±æ˜¯è®©å˜åŽ‹å™¨é“芯充ç£å’Œæ¶ˆç£çš„电æµã€?/p>
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