4 ms·
Debouncing is exactly hysteresis. We often implement it with a very poor digital method but the analog inspiration is a capacitor that must fill before current
by spacemanmatt 4y ago
Debouncing is exactly hysteresis. We often implement it with a very poor digital method but the analog inspiration is a capacitor that must fill before current flows through a closed switch, effecting hysteresis.
- Karliss 4y agoDebouncing using capacitor+schmitt trigger(which even has hysteresis response graph drawn on top) is no doubts a hysteresis. But I wouldn't call all debouncing strategies a hysteresis. One (easy to implement in code) debouncing strategy is lockout - after the first input transition perform the output change immediately and then stop reading any new inputs for some time. This has the benefit of having no delay, but downside is that it amplifies random noise caused by other factors when the switch isn't moving.