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Converters: Period to Voltage
Converters -- Main Page

 Last Updated: December 31, 2017 06:47 AM

 Circuits Designed by Dave Johnson, P.E. Pulse Period to Voltage ConverterThis 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. . . Circuit by David Johnson P.E.-June, 2000 Signal Period to Voltage ConverterThis 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 . . . Hobby Circuit designed by Dave Johnson P.E.-June, 2000

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555 makes handy voltage-to-time converter -  02/01/01 EDN-Design Ideas The circuit in Figure 1 is a simple, low-cost voltage-to-time converter using  ubiquitous 555 timer chip.  You can use  IC's monostable multivibrator as a voltage-to-time converter by connecting  analog-voltage input to  charging resistor, R, instead of connecting R to VCC.  With this modification,__ Circuit Design by J Jayapandian, IGCAR, Tamil Nadu, India

Circuit converts pulse width to voltage -  10/25/01 EDN-Design Ideas The circuit in Figure 1 converts pulse information to a clean dc voltage by the end of a single incoming pulse.  In another technique, an RC filter can convert a PWM signal to an averaged dc voltage, but this method is slow in responding.  Converting low-duty-cycle pulse information is slower yet__ Circuit Design by James Mahoney, Linear Technology Corp, Milpitas, CA

Converter Ignores Power-Supply Variation -  01/05/95 EDN-Design Ideas The simple period-to-frequency converter in Fig 1 uses a dual-slope ADC (IC2) to drive a 3.5-digit display.  One medical application uses the circuit to convert the time interval between two heartbeats to a rate of number per minute.   __ Circuit Design by Samuel Kerem, Infrared Fiber Systems Inc, Silver Spring, MD

Converts a Square Wave input signal into a Voltage -  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 . . . Hobby Circuit designed by David A. Johnson P.E.-June, 2000

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. . . Circuit by David Johnson P.E.-June, 2000

Signal 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 . . . Hobby Circuit designed by Dave Johnson P.E.-June, 2000

Voltage-to-period converter improves speed, cost & linearity of A-D conversion -  09/02/13  EDN-Design Ideas Turning a VFC on its head improves many parameters__ Circuit Design by Jordan Dimitrov

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