Okay so i'm building a large 3d printer, 12v heated bed wasn't enough, i switched to a mains heater, now it heats up too much and too fast so i need a dimmer.
The 3d printer control board puts out a 12v signal that can go up to about 10 amps and if i use that to just control an ssr, it'll overshoot the temp so when you request 60° for example, once the heat gets spreaded it goes up to like 120 which is really bad.
I'm thinking of building a simple triac/capacitor combo dimmer in this video
and put it in series of the ssr. I know that's a bad idea so i'm trying to delete the ssr from the circuit and somehow control the dimmer using the 12v signal from the main board. I basically need to control the potentiometer somehow using the 12v. I could just cut the signal that goes through the potentiometer using a coil relay or some other method but keep it simple. Also no microcontrollers is preferable. Any suggestions is appreciated.
The 3d printer control board puts out a 12v signal that can go up to about 10 amps and if i use that to just control an ssr, it'll overshoot the temp so when you request 60° for example, once the heat gets spreaded it goes up to like 120 which is really bad.
I'm thinking of building a simple triac/capacitor combo dimmer in this video