floating problem

I use a nmos ,and its gate node is connecting to vdd (dc voltage).But system always call me that it is a problem of mos’s gate node is floating.
plz teach me to solve this problem 3qqqq

Hi Rao,

It is likely you are using one of the ideal switch models and need to use the on/off control.

Please watch this tuotrial video https://youtu.be/axgI6xNYKCs

This tutorial video should help as well.

Alternatively use any of the example circuits as a starting point and modify from there.

Love to comment on Google it.