H-Bridge Circuit Diagram - Motor Control Using Transistors and Diodes #1767154 (License: Personal Use)

This schematic illustrates a classic NPN-based H-bridge configuration used to drive DC motors in forward or reverse by switching transistor pairs. Inputs A and B control the left and right legs respectively, while flyback diodes protect against inductive voltage spikes when the motor turns off. Resistors limit base current to ensure proper transistor saturation without overheating.

Used in electronics tutorials, hobbyist motor control projects, and educational content explaining bidirectional DC motor drivers; targets engineers, students, and makers seeking foundational circuit understanding.