Dear all, The gate would act like a capacitor to the source and drain. But if the signal is AC, would that cause displacement current across the junction? Hope you understand Thanks Jack
- posted
18 years ago
Displacement current in MOSFET
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- posted
18 years ago
Yes, it would. The gate doesn't just act like a capacitor - there really are true parasitic capacitances between gate, drain and source.
When the AC signal on the gate (or other "pins") is large in amplitude then of course other things start to happen, like the capacitances can not be considered constant, and there can be breakdown, etc.
- Jan