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Converters: Voltage to Frequency

0.02%  Volt / F Converter Consumes only 26 �A: 07/04/96 EDN-Design Ideas 

10 kHz VFC uses Charge Pump Variation: 04/09/98 EDN-Design Ideas 

DPP Adds Versatility to VFC: 11/14/02  EDN-Design Ideas  / The basic VFC (voltage-to-frequency converter) comprises an integrator (IC1) and a Schmitt-trigger circuit (IC2). The integrator converts the dc input voltage, VIN, to a linear voltage ramp, and the Schmitt trigger sets the limits of the integrators output voltage.

Linear Voltage to Frequency Converter:

LowSide CurrentSensing Circuit Uses Synchronous VToF Converter : 09/02/02 Electronic Design - Ideas for Design  / A voltage-to-frequency converter (VFC) can easily measure current flow and convert it to a digital signal understood by the timer/counter input of a microcomputer (�C) or microprocessor. It's a straightforward task to add a single opto-isolator...  

PIC Controlled DDS VFO, 0 to 6 MHz:

Universal Watchdog Fully Controls � Preset: 05/25/95 EDN-Design Ideas 

VCO has Digitally Programmable Center Frequency: 04/25/96 EDN-Design Ideas      

VCO Transforms Sound Card Into Precision DCCoupled ADC : 08/19/02 Electronic Design - Ideas for Design  / Personal-computer sound cards are sometimes used for analog audio signal acquisition. Also, the Web features many free programs that implement virtual two-channel oscilloscopes by acquiring signals through the sound card. However, sound cards suffer...  

VCO uses Programmable Logic: 11/14/02 EDN-Design Ideas  / A VCO (voltage-controlled oscillator) is an analog circuit, so you cannot find it in the libraries for the design of digital programmable chips.

Versatile Monolithic  Volt / Fs Can Compute As Well As Convert With High Accuracy: National Semiconductor Application Notes,04-Nov-1995 

 Volt / F Converter Draws Flea Power: 04/24/97 EDN-Design Ideas 

Voltage Controls Sine Wave Frequency: 08/17/95 EDN-Design Ideas 

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