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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.
