| Most debounce circuits shorten or lengthen the time a switch is pressed to obviate interference pulses caused by switch bounce. The pres...
All items tagged with Switch and PDF (20)
| Any push-button switch can be used as a bounce-free, change-over switch with the aid of two D-type bistables contained in a 74HCT74 and...
| Switching transistors are usually driven into saturation. which has an adverse effeet on the switching speed. This effect is eliminated,o...
| Binary-coded-decimal (thumb-wheel) switches are not only relatively expensive, but are also often not available to the wanted specificati...
| Rectifying the buzzer signal on a telephone line results in a voltage that may be used to switch one or more loads, for instance, a light...
| Many people still use the old C64 computer to play games on, but get frequently annoyed by the constant need of changing over the joysti...
| The pump in sorne central-heating systems has two or even three speeds. At the lowest speed, not much hot water is pumped around the cir...
| A frequent annoyance with battery-operated equipment is that just after you switch it on you notice that the battery is fIat. Quite proba...
| This electronic switch is designed to be connected direct to the mains, which obviates a low-voltage supply and so keeps the cost and sp...
| A switch that keeps on giving pulses as lang as it pressed is often required. The circuit here uses the well-known Type 555 for this purp...