lurkingdevil
New Member
I am driving a coil with pwm from a microcontroller via P50NE1 N-Channel MOSFET. The coil has a resistance of about 4 ohms and driving voltage is 15V. I was using 1N4007 diode across the coil.
Last night I was fiddling with the code in the micocontroller for hours and the coil and mosfet were working fine. This morning I try to run the coil but the coil won't turn off.
Upon inspection, the mosfet is hot to touch and the mosfet will not turn off when I connect gate to gnd. Looks like its dead.
I connected the multimeter inline with the diode and it measured 0.8A current through the diode.
I have another of the same MOSFET and also a 1N5819 diode. How can I prevent killing the second mosfet?
Last night I was fiddling with the code in the micocontroller for hours and the coil and mosfet were working fine. This morning I try to run the coil but the coil won't turn off.
Upon inspection, the mosfet is hot to touch and the mosfet will not turn off when I connect gate to gnd. Looks like its dead.
I connected the multimeter inline with the diode and it measured 0.8A current through the diode.
I have another of the same MOSFET and also a 1N5819 diode. How can I prevent killing the second mosfet?