MOSFETs don't work

[mkmckay]

I have been trying to get a N-channel MOSFET to work for a project. I'm using a standard n-channel mosfet part number BUZ10. I''m running 13V and 250mA through the source, 13V and some odd pA to the gate, and the output is 13V and around 1-10 pA. I need to keep the same number of amps through the FET. I've changed the circuit to give more current and less voltage to the gate (about 3v and 1mA).

I've tried other FETs with different specs and can't get more then maybe 100nA which is way to low for what the project requires. I'm I doing something wrong?

[Tayyab_R]

Hi,

Can you post your circuit so we can see what could be causing the issue.

[johnsold]

Clearly something is wrong with your circuit or your model as the numbers you posted violate Kirchoff's laws!  If 250 mA is flowing in the source, it has to be going somewhere.

Lynn

[engineering-technician]

i to have a problem with the mosfets not working. 32khz pulse at plus and minus 4 volts doesn't appear on collector. just a 15 volt level.