搜狗做题网MOS晶体管没有导电沟道为什么还会有电流
来源：学生作业帮 编辑：搜狗做题网作业帮 分类：综合作业 时间：2024/07/16 11:42:14
MOS晶体管没有导电沟道为什么还会有电流
As the value of the drain-source voltage is further increased,the assumption that the channel voltage is larger than the threshold all along the channel ceases to hold.This happens when VGS - V(x) < VT.At that point,the induced charge is zero,and the conducting channel disappears or is pinched off.No channel exists in the vicinity of the drain region and the current ID remains constant (or saturates).Please explain why the current can keep constant instead of being zero while the conducting channel has already disappeared?
As the value of the drain-source voltage is further increased,the assumption that the channel voltage is larger than the threshold all along the channel ceases to hold.This happens when VGS - V(x) < VT.At that point,the induced charge is zero,and the conducting channel disappears or is pinched off.No channel exists in the vicinity of the drain region and the current ID remains constant (or saturates).Please explain why the current can keep constant instead of being zero while the conducting channel has already disappeared?
漏源电压的增大有两个影响,一个是使漏源间电流增大,另一个是使导电沟道沿漏源方向逐渐消失.这两种作用相互抵消,电流既不增大也不减小.当漏源电压大到一定程度,导电沟到会完全消失,但电流是有的,仍然是刚发生夹断时的电流,理由见上述
N沟道mos管源极电流可以向漏极流吗?
比如说N沟道增强型MOS管,电流从漏极到源极,是不是电流只经过沟道而不经过衬底,还有连接在衬底和源极...
4种MOS管的开启电压(P沟道增强型MOS管,N沟道增强型MOS管,P沟道耗尽型MOS管,N沟道耗尽型MOS管)
mos管饱和问题当Vds增大后,书上说超过一定大小,则沟道被切断,再增加Vds,则不影响电流（不考虑沟道效应）,我有两个
求P沟道MOS管,最大开启电压小于2V,导通内阻小于5mΩ,最大电流60A以上
N沟道增强型MOS管构成的分压式偏置共源放大电路中栅极电流为0,那栅极...
mos管DS电压为0,为什么还会有电流流经GS?电流大小为13mA,这是为什么啊?
求推荐一P沟道的MOS管!
结型绝缘型、P沟道N沟道、加强型耗尽型MOS管
N沟道增强型MOS管与N沟道耗尽型MOS管在开启电压上的差别是什么?
为什么镁没有导电导热性?
大家推荐一个导通电阻很小的P沟道mos管撒,N沟道也讲几个.