Is it possible to use a transistor as a way to signal a MOSFET in a circuit for switching a device on and off? I wish to soldering iron with a PID temperature controller.
I have attached a diagram / partial schematic.
I want to know is there a way to use a transistor in the circuit to do the switching? When the SSR signal is "on" (Vin ~8v) it needs to open the connection between A and B and switch the load on. When the SSR signal is "off" (V0) it needs to close the connection between A and B and switch the load off.
Any help would be appreciated.
Thanks in advance.