Long-Interval Programmable Timer


Posted on Dec 20, 2012

Using an RC oscillator, an up to 24-stage ripple counter O) 16777216 or 2U, and a 0.1-Hz count-rate with #


Long-Interval Programmable Timer
Click here to download the full size of the above Circuit.

2 = 39 KOhm, C2 = 0.001 ¥, and R4=220 KOhmhm for example, the count cycle would take about 654 s. This example shows the capabilities of this time circuit, using the Motorola MC14536 timer. A low-frequency oscillator can be used for longer time periods.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Single injector-tracer
Simple continuity tester for pcbs
Three-step level indicator
4511B Common-Anode Display Driver Circuit
Simple Short Finder Circuit
headphone jacks
mechatronics Design
HQ Notch Filter Without Close-Tolerance components
Moollon Musical Instrument
KB0PS ILink Station



Top