what the function of the NMOS

[poweric]

these are from a circuit

both source of them are floating



whats the function of them

can it equal the DIODE ??

 

[Fom]

Illegible where sources are connected.

 

[poweric]

these sources are floating

beca we have get the struction of the device

Added after 4 minutes:

 

[abhisheksbox]

the device is using as a capacitor where gate and bukl are the two plates of capacitor.

 

[poweric]

Really？？ but i think the souce and bulk have the PN junction

 

[fjord]

I think that this NMOS are connect bad because source is floating. If can be connect like diode, anode must be connect on higher potential, anode is P type. If can be connect like capacitor, drain and source must be connect on gate. In this case I think that it could be something like capacitor.

 

[poweric]

when the GATE connect the bulk
i think the device can be consider the two serial PN doides the voltage of the gate can control the current of the diode

this is my view