15.15 For the Wien-bridge oscillator of Fig. 15.6, use the expression for loop gain in Eq. (15.7) to find the characteristic equation of the closed-loop system. Show that to locate the poles on the jω-axis, R2/R1 must be selected equal to 2. What is the frequency of oscillation?
15.15 For the Wien-bridge oscillator of Fig. 15.6, use the expression for loop gain in Eq. (15.7) to find the characteristic equation of the closed-loop system. Show that to locate the poles on the jω-axis, R2/R1 must be selected equal to 2. What is the frequency of oscillation?
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