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</script> <script type="text/javascript"> var OBJ_TITLE = "什么是高频变压器的使用条件?"; var OBJ_ID = "219"; var MARK = "news"; var ARR_AD_MARK = ["news_detail_1", "news_detail_2", "news_detail_3"]; var SID = "0001,0002,0006"; //权限ID var AUTHORITY_ID = ""; </script> <script src="/JS/Cls_jsPage.js"></script> <!--content:start--> <div class="content"> <div class="plc2"> 当前位置?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-69401613211_1.html">什么是高频变压器的使用条件?</a></div> <div class="list4nr"> <div class="n_info_con" id="printableview"> <h3> 什么是高频变压器的使用条件?</h3> <div class="info_con_tit"> <div class="info_con_tit"> <div class="n_tit"> <span>文章出处?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电子有限公?/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?span id="cntrHits">-</span></span><span>发表时间?013-05-30 16:12:00</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"> 新浪微博</a> <a class="jiathis_button_tqq">腾讯微博</a> <a class="jiathis_button_tsohu">搜狐微博</a> <a class="jiathis_button_t163">网易微博</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>高频变压?/strong>作为电子机械行业中广泛使用的一个元?它的使用是有一定的条件?电磁兼容性是指高频变压器既不产生对外界的电磁干扰,又能承受外界的电磁干扰。电磁干扰包括可闻的音频噪声和不可闻的高频噪声。高频变压器产生电磁干扰的主要原因之一是磁芯的磁致伸缩。磁致伸缩大的软磁材?产生的电磁干扰大?/p> <p>　　高频变压器产生电磁干扰的主要原因还有磁芯之间的吸力和绕组导线之间的斥力。这些力的变化频率与高频电源变压器的工作频率一致。因?工作频率?00kHz左右的高频变压器,没有特殊原因是不会产?0kHz以下音频噪声的。既然提?0W以下单片开关电源的音频噪声频率,约为10kHz?0kHz,一定有其原因?/p> <p>　　由于没有画出噪声频谱?具体原因说不清楚,但是由高频电源变压器本身产生的可能性不?没有必要采用玻璃珠胶合剂粘合磁芯。屏蔽是防止电磁干扰,增加高频变压器电磁兼容性的好办法。但是为了阻止高频变压器的电磁干扰传?在设计磁芯结构和设计绕组结构也应当采取相应的措施,只靠加外屏蔽带并不一定是最佳方?因为它只能阻止辐射干?不能阻止传导干扰?/p> <p> </p> </div> <div class="apage" id="showfenye"> <!--资讯分页:start--> <script type="text/javascript"> var pagecont=1; 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