Theoretical Analysis Project

Theoretical Analysis Project - Robert J. England II ECP 214...

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Robert J. England II ECP 214 001 Peterson Tuesday, March 27, 2007 Operational Amplifier Oscillator Introduction This analysis is on an operational amplifier (Op-Amp) oscillator, which creates an alternating triangular wave from a DC voltage source. This analysis will (A) describe how the oscillator works, (B) show how to find the frequency of the oscillation from the circuit components, and (C) give ranges of values for the components. Analysis A The oscillator consists of two Op-Amps driven with the same voltage (generally contained within the same chip), along with five resistors and a capacitor, as shown in Figure 1. The two Op-Amps make two separate parts of the same circuit, the trigger part (in blue) and the integrating part (in red). Figure 2 shows an example set of output signals for the Op-Amps; the blue square wave is the output of the trigger Op-Amp, and the red triangular wave is the output of the circuit. When the trigger Op-Amp is driven with a DC voltage, labeled as V+, and an alternating voltage, it creates the blue
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Theoretical Analysis Project - Robert J. England II ECP 214...

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