I'd like to continue this thread:
http://forum.allaboutcircuits.com/showthread.php?t=24059
in this forum so that it will be possible to reference ideas not directly and specifically involving BJT's.
Ratch asserts that it is Vbe that controls BJT's.
I notice that this discussion usually ends being a discussion mainly of interpretation and philosophy, so I want to go there immediately.
The question I direct to the reader is this:
What controls drain current in a MOSFET, the gate voltage or the gate charge?
Obviously, the gate voltage and gate charge are related, so why should a person choose one over the other as the controlling variable?
Would it not be fair to say that the gate voltage is an indicator of the gate charge?
Yet most descriptions of MOSFET operation say that a MOSFET is a voltage operated device.
http://forum.allaboutcircuits.com/showthread.php?t=24059
in this forum so that it will be possible to reference ideas not directly and specifically involving BJT's.
Ratch asserts that it is Vbe that controls BJT's.
I notice that this discussion usually ends being a discussion mainly of interpretation and philosophy, so I want to go there immediately.
The question I direct to the reader is this:
What controls drain current in a MOSFET, the gate voltage or the gate charge?
Obviously, the gate voltage and gate charge are related, so why should a person choose one over the other as the controlling variable?
Would it not be fair to say that the gate voltage is an indicator of the gate charge?
Yet most descriptions of MOSFET operation say that a MOSFET is a voltage operated device.