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</script> <script type="text/javascript"> var OBJ_TITLE = "高频å˜åŽ‹å™¨çš„作用有哪äº?"; var OBJ_ID = "233"; var MARK = "news"; var ARR_AD_MARK = ["news_detail_1", "news_detail_2", "news_detail_3"]; var SID = "0001,0002,0006"; //æƒé™ID var AUTHORITY_ID = ""; </script> <script src="/JS/Cls_jsPage.js"></script> <!--content:start--> <div class="content"> <div class="plc2"> 当å‰ä½ç½®ï¼?a href="/">首页</a> » <a href="/news/">资讯中心</a> » <a href="/News/News-0001,0002,0006.shtml"> 晨飞资讯</a> » <a href="/Article/helps-89541058041_1.html">高频å˜åŽ‹å™¨çš„作用有哪äº?</a></div> <div class="list4nr"> <div class="n_info_con" id="printableview"> <h3> 高频å˜åŽ‹å™¨çš„作用有哪äº?</h3> <div class="info_con_tit"> <div class="info_con_tit"> <div class="n_tit"> <span>文章出处ï¼?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电å­æœ‰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 id="cntrHits">-</span></span><span>å‘表时间ï¼?013-07-25 10:57:00</span> <div class="newchang"> <!-- JiaThis Button BEGIN --> <div id="ckepop"> <a href="http://www.jiathis.com/share/?uid=899792" class="jiathis jiathis_txt jtico jtico_jiathis" target="_blank">分享到：</a> <a class="jiathis_button_qzone">QQ空间</a> <a class="jiathis_button_tsina"> 新浪微åš</a> <a class="jiathis_button_tqq">腾讯微åš</a> <a class="jiathis_button_tsohu">æœç‹å¾®åš</a> <a class="jiathis_button_t163">网易微åš</a> <a class="jiathis_button_tools_1"></a><a class="jiathis_button_tools_2"></a> </div> <script type="text/javascript"> var jiathis_config = { "data_track_clickback": true };</script> <script type="text/javascript" src="http://v2.jiathis.com/code/jia.js?uid=899792" charset="utf-8"></script> <!-- JiaThis Button END --> </div> </div> </div> </div> <div id="cntrBody"> <p>　　<strong>高频å˜åŽ‹å™?/strong>主è¦æ˜¯åº”用于高频开关中,它的工作频率超过了中频电æºå˜åŽ‹å™¨,通常在传é€åŠŸçŽ‡æ¯”较大的情况下，功率器件一般采ç”?IGBT，由于IGBT存在关断电æµæ‹–尾现象，所以工作频率比较低；传é€åŠŸçŽ‡æ¯”较å°çš„，å¯ä»¥é‡‡ç”¨MOSFET，工作频率就比较高ã€?/p> <p>　　å˜åŽ‹å™¨ä¿æŠ¤è£…置是集ä¿æŠ¤ã€ç›‘视ã€æŽ§åˆ¶ã€é€šä¿¡ç­‰å¤šç§åŠŸèƒ½äºŽä¸€ä½“的电力自动化高新技术产å“，是构æˆæ™ºèƒ½åŒ–开关柜的ç†æƒ³ç”µå™¨å•å…ƒã€‚所有的å˜åŽ‹å™¨çš„作用都是将电能转化为ç£èƒ½ï¼Œç„¶åŽå°†ç£èƒ½è½¬åŒ–的电能，åŒæ—¶åˆ©ç”¨åŒæ•°æ¯”的关系实现å˜åŽ‹çš„。至于高频å˜åŽ‹å™¨å’Œä½Žé¢‘å˜åŽ‹å™¨åªä¸è¿‡æ˜¯å„自的工作频率è¦æ±‚çš„ä¸åŒè¿›è¡Œåˆ†ç±»ï¼Œå½“然因为其å„自的ç£èŠ¯åˆ†åˆ«é€‚用于ä¸ç”¨çš„频率所以也是ä¸èƒ½é€šç”¨çš„ã€?/p> <p>　　高频å˜åŽ‹å™¨å¯ä»¥å¯¹é«˜é¢‘脉冲进行å˜åŽ‹ï¼Œæ™®é€šå˜åŽ‹å™¨é“芯没有é“氧体ç£èŠ¯çš„导ç£çŽ‡é«˜ã€‚å› æ­¤åšä¸åˆ°è¿™ä¸€ç‚¹æ高转æ¢æ•ˆçŽ‡ï¼Œä½¿ç”¨é«˜é¢‘å˜åŽ‹å™¨çš„电æºï¼?由于电æºç®¡å·¥ä½œåœ¨çž¬é—´å¯¼é€?截止的状æ€ï¼Œä¹Ÿå°±æ˜¯ä¸€å¼€ä¸€å…³ä¸åœè½¬æ¢çš„状æ€ï¼Œå› æ­¤æˆ‘们称之“开关电æº?rdquo;。比传统é“芯å˜åŽ‹å™¨æŸè€—低30%å·¦å³ã€‚é—憾的是故障率相对è¦é«˜ä¸€äº›ã€‚å¯ä»¥å€Ÿé‰´çš„是è€å¼é•‡æµå™¨å’Œç”µå­é•‡æµå™¨çš„对比.</p> <p><br />  </p> </div> <div class="apage" id="showfenye"> <!--资讯分页:start--> <script type="text/javascript"> var pagecont=1; 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