耦合电感元件
一、耦合线圈
两个靠得很近的线圈L1、L2,它们的匝数别离为N1、N2,称为耦合线圈。
![](http://www.591dg.com/uploads/allimg/blog/hmoglsjeayd.gif)
线圈L1
电流
![](http://www.591dg.com/uploads/allimg/blog/ao5eb4ozdfs.gif)
![](http://www.591dg.com/uploads/allimg/blog/44bbt5smvsg.gif)
![](http://www.591dg.com/uploads/allimg/blog/cxjzlu4b1u3.gif)
![](http://www.591dg.com/uploads/allimg/blog/30uyuqr1fkg.gif)
电流
![](http://www.591dg.com/uploads/allimg/blog/0fq02f2noq5.gif)
![](http://www.591dg.com/uploads/allimg/blog/wow4g1xodgv.gif)
![](http://www.591dg.com/uploads/allimg/blog/tmjmze2j41t.gif)
![](http://www.591dg.com/uploads/allimg/blog/l5ddujfusug.gif)
![](http://www.591dg.com/uploads/allimg/blog/dtihzzj4p1n.gif)
总感应电压
![](http://www.591dg.com/uploads/allimg/blog/eygh4jkxfjk.gif)
线圈L2
电流
![](http://www.591dg.com/uploads/allimg/blog/fiokbkicqdw.gif)
![](http://www.591dg.com/uploads/allimg/blog/vbp2bui4tox.gif)
![](http://www.591dg.com/uploads/allimg/blog/3mhmminyhxl.gif)
![](http://www.591dg.com/uploads/allimg/blog/wptvljh1btr.gif)
电流
![](http://www.591dg.com/uploads/allimg/blog/b4ev11d5lcv.gif)
![](http://www.591dg.com/uploads/allimg/blog/hnzsy4qbdcg.gif)
![](http://www.591dg.com/uploads/allimg/blog/5gxei0az3jf.gif)
![](http://www.591dg.com/uploads/allimg/blog/qibb5git5t3.gif)
![](http://www.591dg.com/uploads/allimg/blog/4hx5qxn2hxk.gif)
总感应电压
![](http://www.591dg.com/uploads/allimg/blog/i52e04hbtua.gif)
二、同名端线圈L2
电流→磁通
→磁链
→自感电压
电流→磁通
→互磁通
→互磁链
→互感电压
总感应电压
![](http://www.591dg.com/uploads/allimg/blog/zxwhyevauey.gif)
三、耦合系数
耦合系数
耦合系数定量地标明两个线圈耦合松紧的程度。,称两个线圈为全耦合,
,称两个线圈为紧耦合,
,称两个线圈为松耦合。
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