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 |