FIGURE 6. Switch-debouncing input interface. FIGURE 7. Transistor input interface. FIGURE 8. Optocoupler input interface.
FIGURE 9. “Dirty-switching” input interface.
FIGURE 12. Current-boosting, load-driving output interfaces.
FIGURE 10. LED-driving
output interfaces, using
non-inverting TTL elements.
FIGURE 11. LED-driving output
interfaces, using inverting
TTL elements.
FIGURE 13. Output interface to a load
with an independent positive rail.
FIGURE 14. Optocoupled output
interface.
FIGURE 15. Output interface to a low-power AC
lamp via an optocoupled triac.
FIGURE 16. Output interface to a high-power
non-inductive AC load.
September 2006 63
