I've seen some commercial motor controllers on the net that use two transistors to control the direction of a DC motor. I'd like to build this circuit myself and save some cost on the transistors. Does this require the use of a dual power supply? Anyone have schematics? I want to use as few I/o lines as possible. I am thinking
1 i/o line for On/OFF and 1 line for Forward/REVERSE. R- posted
20 years ago