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Frequency to Voltage Converters
Converters -- Main Page

 

Last Updated: December 31, 2017 06:47 AM

Circuits Designed by Dave Johnson, P.E.

1us Light Pulse Discriminator This circuit is designed to detect the narrow 1uS pulses produced by the above amplifier circuit.  The clean logic type pulses produced by the discriminator are then sent to a frequency to voltage converter.  The circuit is designed to process a pulse frequency . . . Hobby Circuit designed by Dave Johnson P.E.-March, 1999

Detect the narrow 1uS pulses This circuit is designed to detect the narrow 1uS pulses produced by the above amplifier circuit.  The clean logic type pulses produced by the discriminator are then sent to a frequency to voltage converter.  The circuit is designed to process a pulse frequency. . . Circuit by David A. Johnson P.E.-March, 1999


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1us Light Pulse Discriminator This circuit is designed to detect the narrow 1uS pulses produced by the above amplifier circuit.  The clean logic type pulses produced by the discriminator are then sent to a frequency to voltage converter.  The circuit is designed to process a pulse frequency . . . Hobby Circuit designed by Dave Johnson P.E.-March, 1999

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

900-Mhz Down Converter Consumes Little Power 06/22/95 EDN-Design Ideas Most 900-MHz down-converter designs are proprietary and, thus, are unavailable to the industry.  The designs that are available are usually discrete or require high voltage, which excludes them from the portable market.  The down converter in Fig 1  is nonproprietary and suits battery-powered applications.  Moreover, you can use the IC__ Circuit Design by Ronald Mancini and Raphael Matarazzo, Harris Semiconductor, Melbourne, FL

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

Circuit Converts Pulse Width to Voltage #3 10/28/99 EDN-Design Ideas The circuit in Figure 1 stems from a radio-controlled modeling application, which requires a voltage proportional to the width of the incoming servo pulses.  The circuit is optimized for a positive-going pulse width of 1 to 2 msec, repeating at intervals of approximately 17 msec.  The output produces a voltage of 0.95V for a 1-msec pulse to 2.25V for a 2-msec pulse.__ Circuit Design by Ron Hegler, Picker International, Cleveland, OH

Convert 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

Convert Pulse Width to Voltage 10/28/99 EDN-Design Ideas The circuit in Figure 1 stems from a radio-controlled modeling application, which requires a voltage proportional to the width of the incoming servo pulses.  The circuit is optimized for a positive-going pulse width of 1 to 2 msec, repeating at intervals of approximately 17 msec.  The output produces a voltage of 0.95V for a 1-msec pulse to 2.25V for a 2-msec pulse.__ Circuit Design by Ron Hegler, Picker International, Cleveland, OH

DDS IC plus frequency-to-voltage converter make low-cost DAC 02/05/04  EDN-Design Ideas Precision DACs are essential in many consumer, industrial, and military applications, but high-resolution DACs can be costly.  Frequency-to-voltage converters have good nonlinearity specifications—typically, 0.002% for the AD650—and__ Circuit Design by Noel McNamara, Analog Devices, Limerick, Ireland

Detect the narrow 1uS pulses This circuit is designed to detect the narrow 1uS pulses produced by the above amplifier circuit.  The clean logic type pulses produced by the discriminator are then sent to a frequency to voltage converter.  The circuit is designed to process a pulse frequency. . . Circuit by David A. Johnson P.E.-March, 1999

F/V Converter Has High Accuracy 05/12/94 EDN-Design Ideas The high-accuracy frequency-to-voltage converter(FVC] in Fig 1  demonstrates how a synchronous, charge-balance, voltage-to-frequency converter(VFC] can function as a single-supply FVC given proper biasing and level shifting.  This FVC can maintain a monotonic 0.01% linearity error over a 60-dB range of 9.7 kHz to 9.7 MHz; it operates from 12 to 36V power supplies.  You can modify the circuit’s prescaler to adapt the circuit to considerably higher frequency ranges__ Circuit Design by Paul Hendricks, Analog Devices Inc, Wilmington, MA

Frequency to Voltage Converter Schematic Only, no circuit description included __ Designed by Andrew R. Morris

Hear AM ateurs on Your FM Radio! amateur radio construction projects. __ Designed by Peter Parker

Monostable makes low-cost F/V converter 02/18/99 EDN-Design Ideas NOTE :  Page includes several designs.  Scroll to find this one.  The circuit in Figure 1 is a low-cost frequency-to-voltage NOTE :  F/V]converter.  Using a monostable NOTE :  one-shot]multivibrator, the circuit accepts an open-collector square wave that varies in frequency from 0 to 10 kHz.  The one-shot produces__ Circuit Design by Mark Brinegar, Dart Controls Inc, Zionsville, IN


Frequency to Voltage Converters


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