In the old system (how soon we forget) The sensor was on the pipe and set for 70C. With no water it seemed to trip before the FETs fryed. So I think with it on the FET plastic and set for 80C it will trip much faster. Just my 2 cents.
We can scale the reference to hold the current at 4 amps/FET below 24 or 25 volts - I think. We need to come up with a way to test it before we wire up a bunch of FETs. Maybe 3 or 4 supplies in series.
We can scale the reference to hold the current at 4 amps/FET below 24 or 25 volts - I think. We need to come up with a way to test it before we wire up a bunch of FETs. Maybe 3 or 4 supplies in series.