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高頻變壓器原材料能源節(jié)約設(shè)計(jì)的建??/h3>
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<span>文章出處??a href=""><a >深圳市晨飛電子有限公??/a></a></span><span>網(wǎng)責(zé)任編輯：<a >NSW</a></span><span>作者：<a >NSW</a></span><span>人氣??span
id="cntrHits">-</span></span><span>發(fā)表時(shí)間??013-12-17 14:32:00</span>
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<p> <strong><a href="http://m.linhang.com.cn/product/product-0001,0015.shtml">高頻變壓??/a></strong>在使用的過程??如果開關(guān)的設(shè)置沒有處理好的??就有可能會(huì)導(dǎo)致電流出現(xiàn)故障的。其實(shí)高頻變壓器和低頻變壓器設(shè)計(jì)原理是大同小異的，只是所用的材料不同和工作環(huán)境不同??/p>
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<div> 低頻變壓器一樣用鐵芯和銅線制作；考慮的因素也主要是鐵損和銅損以及抗磁飽和??高頻變壓器一般用磁芯或空氣芯（空心線圈），同時(shí)還要考慮材料的高頻損耗，在頻率較高時(shí)還要考慮變壓器結(jié)構(gòu)上分布電感和分布電容的影響，以及電路分布電感和電容對(duì)變壓器的影響。所以往往計(jì)算出來的值在實(shí)際運(yùn)用中不是很準(zhǔn)確，要放在電路中進(jìn)行調(diào)整。高頻變壓器在設(shè)計(jì)的過程中從節(jié)約能源及原材料的角度，可采取以下建議：</div>
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<div> 1、減少銅的用量，有兩個(gè)方面可以實(shí)現(xiàn)，一是減少線徑這就意味著銅阻增大，銅損損耗就會(huì)增大。二是減少圈數(shù)，就會(huì)使空載電流增大，同樣空載損耗就會(huì)加大，如果變壓器長時(shí)間的處于通電待機(jī)狀態(tài)，電力資源的浪費(fèi)是非常大的。每年我國因?yàn)榧矣秒娖鞯拈L期處于待機(jī)通電狀態(tài)造成的電力浪費(fèi)以數(shù)十億元計(jì)??/div>
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<div> 2、高頻變壓器設(shè)計(jì)時(shí)應(yīng)使銅損和鐵損相等，這樣變壓器的損耗最低，工作最穩(wěn)定，如果一個(gè)變壓器設(shè)計(jì)完后，由于為節(jié)省銅線，而采取小號(hào)的線徑和減少圈數(shù)的方法，使得鐵心窗口還有很多的空間余量，這樣就說明鐵心的尺寸選擇的過大，造成了鐵心的浪費(fèi)，由于鐵心的規(guī)格大，繞線的平均周長也大，同樣會(huì)造成銅線的用量增加。根據(jù)現(xiàn)在的價(jià)格，鐵心的成本要高于銅線的成本??/div>
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<div> 所以在設(shè)計(jì)時(shí)，在保證性能滿足客戶的要求的情況下，應(yīng)盡量選擇小號(hào)的鐵芯，能用41的，就絕不用48的。關(guān)于空載電流，從節(jié)省待機(jī)的損耗上考慮，還是盡量低的好??/div>
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