deadcoffee
New Member
Hi, i have a very simple project going on. On part takes 120v AC through a Transformer to 12.6vAC then a bridge Recitifer to get 12v DC - which then goes on to power the board. I need to take 12vdc from the recitfier and send it off to heat a thin nickle-crome filiment to red hot. (so i just have two wires going from the +/- ends of the rectifier to the this filiment
My problem is of course the filiment gets hot but then the rectifier smokes, putting a resistor in the loop gets the resistor hot or puts in too much resisitance so i don't get the Infrared red radiation i need.
if someone could help a newbie out and point me in the right direction, how to i isolate the filiment from the power supply, or how do i keep the current from feeding back.
Thanks in advance,
Ben
My problem is of course the filiment gets hot but then the rectifier smokes, putting a resistor in the loop gets the resistor hot or puts in too much resisitance so i don't get the Infrared red radiation i need.
if someone could help a newbie out and point me in the right direction, how to i isolate the filiment from the power supply, or how do i keep the current from feeding back.
Thanks in advance,
Ben