self bias mosfet

193

02:10:17

actually the 1M resistor is just a current  limiter. the potential divider is the two resistors on the source and drain of the FET  

This is far easier to design and implement than is the bjt equivalent. 

published 10 years ago

thebugger

10 years ago

It's actually called current driven mosfet or BJT depending on what kind of transistor you use. Anyway that's not how you bias a mosfet. Ideally they have an infinite gate resistance to DC so you'll need to add a ground path for the signal. Just add another resistor in a voltage divider setup to do it properly. Nevertheless keep it up.

zorgrian

10 years ago

Have you actually tried doing this for real?

thebugger

10 years ago

This specifically I've done only with BJT's but knowing Mosfet basics I'm telling you what you should consider.

zorgrian

9 years ago

Peace and love

zorgrian

8 years ago

And youd get massive pops if you jacked in an electric guitar without a path to ground at the front. Charge and discharge of the gate capacitance etc etc etc

zorgrian

8 years ago

Its great that your royal buggerishness chooses not to instruct me on everything these days. However, this is i suspect mainly due to me having stopped posting circuits up here. It was either that or leave EC

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