Pulse-Generator Circuit Diagram of Electronic Tachometer Using LM317
Pulse-Generator Circuit Diagram of Electronic Tachometer Using LM317 - The pulse-generator circuit diagram of electronic tachometer is shown in the f
Pulse-Generator Circuit Diagram of Electronic Tachometer Using LM317 - The pulse-generator circuit diagram of electronic tachometer is shown in the following figure.
The circuit consists of an LM317 voltage regulator, a comparator, and the NE555 timer. Resistor values are in KOhm, the capacitors in uF.
The LM317 will generate a DC voltage for accuraccy purpose since it remains constant as the temperature and battery voltage may vary.
An LM311 comparator is used to detect the pulse from the pulse-cleanup circuit and to trigger NE555 timer.
See here for completing the electronic tachometer project.
Tags: electronic tachometer, LM317 datasheet,
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