Design size of MOSFET

Thread Starter


Joined Sep 23, 2010
Picture at
The load in the inverter circuit shown is a coil of an electromagnet
that requires a current of 0.5 A when turned on. The effective​

load resistance varies between 8 and 10
, depending on
temperature and other variables. A 10 V power supply is
available. The transistor parameters are k'n=80 and Vtn=1V​
Design the size of the MOSFET to meet the requirements.

Just a little bit of guide how to start, useful websites..etc..would be great,thx a lot!:)