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A New Shadow Frequency to Voltage Converter as a Read-out Circuit for Resistive Sensors
  • Muneer Al-Absi
Muneer Al-Absi
King Fahd University of Petroleum & Minerals Electrical Engineering Department

Corresponding Author:[email protected]

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This paper presents a shadow signal generator that produces square and triangular waveforms. The oscillator frequency can be changed using an external circuit (shadow oscillator). This method will make the conversion speed better than the conventional oscillators. The technique is based on utilizing an external circuit to modify the comparator’s tripping point. The circuit is built using widely available commercial integrated circuits, 1% accurate resistors, and DC supplies with a ±5V voltage. The recommended setup is suitable for instrumentation where the oscillation frequency is directly proportional to the variation in the resistance of the sensor. The functionality of the proposed design was confirmed by experimentation and simulation. The oscillation’s frequency can be changed to be nearly 10 times greater than its starting value, according to the results.
06 Nov 2023Submitted to International Journal of Circuit Theory and Applications
06 Nov 2023Assigned to Editor
06 Nov 2023Submission Checks Completed
06 Nov 2023Review(s) Completed, Editorial Evaluation Pending
15 Nov 2023Reviewer(s) Assigned