I'm putting together a 1.6v 30a power supply for my wifes pyrography pen as I dont want to pay the silly 170 notes for a new one off the shelf.
I need a triac phase angle circuit, aka light dimmer, but with the o/p going to a transformer (240 ac primary) I need something that is reasonably symetrical, as if it isnt the resulting dc is going to fry my trans, which is allready working hard.
I'd like to do this with a simple circuit using discretes, instead of a micro.
There was something on this forum a while back, cant find it now.
I need a triac phase angle circuit, aka light dimmer, but with the o/p going to a transformer (240 ac primary) I need something that is reasonably symetrical, as if it isnt the resulting dc is going to fry my trans, which is allready working hard.
I'd like to do this with a simple circuit using discretes, instead of a micro.
There was something on this forum a while back, cant find it now.