I was trying out a mosfet (IRF530) with a solenoid load (and back-emf diode bypass in place) connected to an 8v supply. After triggering the gate, the solenoid energised, but remained energised even with no gate voltage. Like a thyristor, I thought. I found that a high value resistor between source and gate allowed the mosfet to turn off when gate voltage removed.
I didn't think such a resistor was necessary. What do you have to say about it?. ~~Sammy ~~
I didn't think such a resistor was necessary. What do you have to say about it?. ~~Sammy ~~