Circuit - Period to Voltage Converters Circuits / Schematic List - Circuits designed by David A. Johnson, P.E.


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Period to Voltage Converter Circuits
Designed by David A. Johnson, P.E.

Last Updated on: Sunday, July 27, 2008 07:41 PM

Master Category List - Dave's Circuits

More Converter Circuits

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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.