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高頻變壓器的設(shè)計制作步驟</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
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<p> <strong>高頻變壓??/strong>主要是用于功率傳送、電壓變換和絕緣隔離，作為一種主要的軟磁電磁器件，在電源技術(shù)中和電力電子技術(shù)中得到廣泛的應(yīng)用。一般對它有一定了解的人都喜歡自己設(shè)計制作,通常都按照這個步驟來進(jìn)行設(shè)計:</p>
<p> 第一步，確定原邊匝數(shù)。；當(dāng)然首先自己要選一款磁??設(shè)原邊輸入最低電壓是VS，導(dǎo)通時間用TON表示，還要自己設(shè)定一個磁芯振幅，一般我是取0.2??.25T,因為正激變壓器是不需直流分量??所以相比反激而言這個值可以取大些,原邊匝數(shù)NP=VS*TON/AE*B,其中AE是磁芯截面積.</p>
<p> 第三??畫出原邊電流波形,算出原邊電流波形的效??從而確定線??因為電流波形是從副邊感應(yīng)過來??其波形就是電感電流波形開關(guān)管導(dǎo)通的那一部分.這個電流的波形的峰值就是電感電流峰值除以匝數(shù)比,這個會算??于是這個電流波形的有效??(IP*V/VS)* 根號下的〈（KRP的平??3-KRP+1??D>然后根據(jù)這個電流值去選線,電流密度同上.<br />
<br />
第四??確定副邊電流的波??求出副邊電流波形的有效值來.副邊電流的波形就是開關(guān)管開通時候電感電流的那一部分,這個波形和原邊電流的波形相似，因為原邊電流的波形就是由這個感應(yīng)過去的，我就不畫了,其有效?? IP*根號下的〈（KRP的平??3-KRP+1??D〉。依此去選線.</p>
<p> 第五??確定自饋電繞??一般其和原邊同名端相反,利用磁復(fù)位放出電壓感應(yīng)出電壓??</p>
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