Circuit: PULSE PERIOD TO VOLTAGE CONVERTER __ Circuit designed by David A. Johnson, P.E.

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Last Updated on: Wednesday, December 20, 2017 06:11 AM

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More Period to Voltage Converters

PULSE PERIOD TO VOLTAGE CONVERTER

This is a test circuit converts a square wave input signal into a voltage. But, the voltage produced is proportional to the time between edges (period) of the signal, not the frequency. The range is from 100uS to to 10mS, which produces a voltage from 100mV to 10 volts. Other scale factors are also possible. The circuit is powered from single 15v supply and uses inexpensive parts. It is great when a signal's period instead of its frequency needs to be monitored.

Click on Drawing Below to view PDF version of Schematic