电子元器件电感、二极管特性简介

admin

                    

                    

                    
                    
                    <section><section powered-by="gulangu"><section><p><img src="image/20201019/addc21bf0c0ecd5f0cd8fdb075237994_1.gif" /></p></section></section><section powered-by="gulangu"><section><section><p>电感</p></section><p><img src="image/20201019/7a2c795a911b88650f2de446856888ba_2.png" /></p> <section></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; 当电流流过导体时产生的电磁场的器件简称为电感。电感又分为自感和互感。</p><p>&nbsp; &nbsp; &nbsp; &nbsp; 自感：当线圈中有电流通过时，线圈的周围就会产生磁场。当线圈中电流发生变化时，其周围的磁场也产生相应的变化。此变化的磁场可使线圈自身产生感应电动势，这就是自感。</p><p>&nbsp; &nbsp; &nbsp; &nbsp;互感：两个电感线圈相互靠近时，一个电感线圈的磁场变化将影响另一个电感线圈，这种影响就是互感。</p></section></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/f338098bc993c33185f55635cb37363f_3.jpg" /></p></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><p>二极管</p></section><p><img src="image/20201019/7a2c795a911b88650f2de446856888ba_2.png" /></p> <section></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; 二极管是由PN结组成，只往一个方向传送电流的半导体器件。</p><p>&nbsp; &nbsp; &nbsp; &nbsp; 二极管的正向偏置：就是给二极管的正极（A）接电源的正极（+），负极（K）接电源的负极（-）。</p><p>&nbsp; &nbsp; &nbsp; &nbsp; 二极管的反向偏置：就是给二极管的负极（K）接电源的正极（+），正极（A）接电源的负极（-）。</p></section></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/fbf96d4e35df2f341df7a2697fcb4552_5.jpg" /></p></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 二极管的单向导电性：当P区电压高于门槛电压后单向阀门流向N区，当N区流向P区时由于是单向阀门被台阶挡住所以通不过，这就是二极管的单向导电特性，只能从P流向N。</p></section></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/cb98ea1d843069e06f00da090d96aba7_6.jpg" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/87360b1a3116f55dd39c634633bc4b16_7.jpg" /></p></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p>欢</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>迎</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>注</p></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><p><img src="image/20201019/7806663b1daa5dac6f944b859d2bc375_8.jpg" /></p></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关注我们</p><p>一起涨姿势！</p></section></section></section></section></section></section></section>