DPDT relay applications 1. Change motor direction with DPDT relay As you can see in the schematic the 12V battery (or use other voltages) is connected with the plus at terminal T1 and minus at ...

With this circuit, you can use low-torque, low-revolutions-per-minute stepper motors in systems in which you formerly needed dc gearbox motors. By changing the pushbutton to a dpdt switch, you can ...