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Arc-Tangent Circuit for Continuous Linear Output (2000)

Howard, David E. ; Smith, Dennis A. ; Alhorn, Dean C.

In: CASI

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Publication Date: 2019-07-10

Description: A device suitable for determining arc-tangent of an angle theta is provided. Circuitry generates a first square wave at a frequency omega(t) and a second square wave at the frequency omega(t) but shifted by a phase difference equal to the angle theta. A pulse width modulation signal generator processes the first and second square waves to generate a pulse width modulation signal having a frequency of omega(t) and having a pulse width that is a function of the phase difference theta. The pulse width modulation signal is converted to a DC voltage that is a linear representation of the phase difference theta.

Keywords: Electronics and Electrical Engineering

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