1. Motor Control

2. H-Bridge for Bi-direction

4. Relays

5. Relay “Poles” and “Throws”

6. 1. Relay H-Bridge

7. How to make an H-Bridge with ONE relay?

9. Transistors

10. 2. Transistor H-Bridge

12. 3. H-Bridge ICs

14. L293 Function Table

15. Motor Driver Design Considerations
Noise
In-rush Current
Over-heating
Power Source (Single / Dual Supply)

16. Noise Protection Techniques
Coupling Capacitor
Clamp Diodes

17. Noise Protection Techniques (cont)
Opto-Isolator 5V

18. In-rush Current

19. In-rush Current (cont)
Resistor
Current Limiter

20. Over Heating
Heat Sink

21. Dual Power Supply