Deous:
I just have interesting question about power mosfet.Let's say current goes from source(+) to drain(-) in n-channel enhancement mosfet.
With VGS=0V there is a full current flow - but I want to stop it.
So if I apply a negative VGS (G-,S+) - is it gonna stop the current flow between S-D ??
Is it safe or it will damage the gate? Small threshold GS
Normally VGS controls flow from D to S which is a body diode opposite to the flow
Power MOSFETs have a body diode, part of the structure of the device is a big PN junction diode
so they always conduct backwards, it cant be turned off, but if the gate is forward biased the
on-resistance of the MOSFET is in parallel with the diode and may reduce dissipation.
Biasing the gate negative doesn't do anything.