Hello! I am just trying to figure out if what i am doing is right, I am currently building an enclosure for my 3d printer that will be heated.
The heater is a PTC 150w 12v dc 12,5A and the controller is a STC 1000 12v that can give a maximum of 10A, so there is the first problem that the STC can't handle the 12,5A the heater will draw. So my idea (quite new to electronics) is to add a relay that can handle 30A and a powersupply that converts 220v to 12v dc 30a, so instead of pulling the 12,5A through the STC 1000 the STC will only give a 12v signal to the relay that in turn will open up the current from the powersupply to the heater. Is that the correct way to do it?
here is an simple image to make it a more clear.
The heater is a PTC 150w 12v dc 12,5A and the controller is a STC 1000 12v that can give a maximum of 10A, so there is the first problem that the STC can't handle the 12,5A the heater will draw. So my idea (quite new to electronics) is to add a relay that can handle 30A and a powersupply that converts 220v to 12v dc 30a, so instead of pulling the 12,5A through the STC 1000 the STC will only give a 12v signal to the relay that in turn will open up the current from the powersupply to the heater. Is that the correct way to do it?
here is an simple image to make it a more clear.