This is the traditional H bridge configuration for motors. The circuit is for currents up to 500 mA, but with higher power transistors such as the TIP31 motors up to 2 A can be controlled.
Books and e-Books by Institute NCB 100 CIRCUITS - SHIELDS FOR ARDUINO FUN PROJECTS FOR THE...
This circuit is designed to control static loads fed by direct voltage. The circuit is from...
This circuit was found in the January 1999 issue of Electronics Now magazine. The circuit uses an...