一、场效应管的分类
![a7456cab803a485cba7195c1abbfb874?from=pc.jpg a7456cab803a485cba7195c1abbfb874?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124kkqp5oib65xipx20.jpg)
01、MOS管电路符号
![dfe1833d4ac6441fb5f535619153b3eb?from=pc.jpg dfe1833d4ac6441fb5f535619153b3eb?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124ccc67whuf73fahuk.jpg)
N沟道耗尽型 N沟道增强型 P沟道耗尽型 P沟道增强型
二、I-V特性曲线和特性方程
01、N沟道耗尽型
1、N沟道耗尽型特性曲线:
![11407a8e14114cb183e7ee8e9adf0263?from=pc.jpg 11407a8e14114cb183e7ee8e9adf0263?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124keg7jcd6n2hy78hd.jpg)
2、N沟道耗尽型特性方程:
(1)输出方程:
![9911d6887c1848b9a7ab93322fb0eda5.jpg 9911d6887c1848b9a7ab93322fb0eda5.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124a1562l5f459ffz25.jpg)
(2)转移特性:
![a878dd92d22246bcbe29bff5b4d7e029.jpg a878dd92d22246bcbe29bff5b4d7e029.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124pihisyfdgnvyyvho.jpg)
![d12841b91b7f4f279285645abad81c0d.jpg d12841b91b7f4f279285645abad81c0d.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124as4gg3zme43of422.jpg)
02、N沟道增强型
1、N沟道增强型特性曲线:
![146fbbe97fcf4344b01f20d7381fcf07?from=pc.jpg 146fbbe97fcf4344b01f20d7381fcf07?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124g9eugk9cqwoowcdo.jpg)
2、N沟道增强型特性方程:
(1)输出特性:
![9c09248614a1461b88521cf8059ff404?from=pc.jpg 9c09248614a1461b88521cf8059ff404?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124e2inom2zs3w2f3mf.jpg)
(2)转移特性:
![a9c4823862954eda8d3f454879e76e64.jpg a9c4823862954eda8d3f454879e76e64.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124rqnap9pn5i9ka09q.jpg)
![20936757ba114771ad43f0ec55862a60.jpg 20936757ba114771ad43f0ec55862a60.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124mai1upj03zqyyw5o.jpg)
03、P沟道耗尽型
1、P沟道耗尽型特性曲线:
![665cb89345d94161895f5a28f67b61fe?from=pc.jpg 665cb89345d94161895f5a28f67b61fe?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124nzno9jj2o2ogg2z2.jpg)
2、P沟道耗尽型特性方程:
(1)输出特性:
![4617ff4a62ef407b878140e0bf084793.jpg 4617ff4a62ef407b878140e0bf084793.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124m1ydg6pzapc1dgr6.jpg)
(2)转移特性:
![976325e4df7e46518eb5840dac143f85.jpg 976325e4df7e46518eb5840dac143f85.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124hjbgul06ugy6lm6m.jpg)
![1223691ec0614e90b13090fd78a84de1.jpg 1223691ec0614e90b13090fd78a84de1.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124txxz82oxuoothoo7.jpg)
04、P沟道增强型
1、P沟道增强型特性方程:
![fb9b71c8a5e046e18108862a6cb5a0ca?from=pc.jpg fb9b71c8a5e046e18108862a6cb5a0ca?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124snkw05iwwynu0kwk.jpg)
2、P沟道增强型特性曲线:
(1)输出特性:
![192e00d944db4c41b642fe60f727bec0.jpg 192e00d944db4c41b642fe60f727bec0.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124gjac3bub83jb549u.jpg)
(2)转移特性:
![9cde1bc2bf0f4f848e39110823f1b423.jpg 9cde1bc2bf0f4f848e39110823f1b423.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124ko70moieaya18bn9.jpg)
![ba643180ba934e8f8955fcf3d8ac3817.jpg ba643180ba934e8f8955fcf3d8ac3817.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124mnbcbmbewwv3oswt.jpg)
三、三种组态放大电路
![e61ddf11f7384aa3915a99bd4ba4539a?from=pc.jpg e61ddf11f7384aa3915a99bd4ba4539a?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124p46o34daa1adlj8p.jpg)
共源极接法:源极作为公共电极,信号由栅极输入,漏极输出。
![ab20647bfa064b5d800e98bbd8045714?from=pc.jpg ab20647bfa064b5d800e98bbd8045714?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124uzgsw3w1w175gzve.jpg)
共漏极接法:漏极作为公共电极,信号由栅极输入,源极输出。
![353b71f8f5a84576b504b470ad187c75.jpg 353b71f8f5a84576b504b470ad187c75.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124fxjwnw4xoxox449o.jpg)
共栅极接法:栅极作为公共电极,信号由源极输入,漏极输出。
四、三种组态动态性能比较
![6349e789eede487ead16f38bc4c15e62?from=pc.jpg 6349e789eede487ead16f38bc4c15e62?from=pc.jpg](https://static.assets-stash.eet-china.com/forum/202111/19/163124nhs7zssztdrto54r.jpg)
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