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Function Generator

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Circuit Description

This is an implementation of an analog function generator. We first create a voltage controlled oscillator (VCO) which outputs a triangle wave. Integrated into the VCO is an opamp setup to be a comparator which outputs a square wave. The triangle wave is then shifted to be centered at 0 and then diode shaped to create a sine wave. At the moment, the sine wave is correctly shaped on the rising edge but there's an issue on the falling edge. Anyone have any recommendations for a fix?

user-52 says:

Nice build, and still one of the better function generators on here after ten years.

Since it's been sitting here that long: Multisim Live shuts down September 15 and saved circuits go with it. I work on CircuitSim, https://circuitsim.com, which imports Multisim Live circuits. Here's what the import looks like: https://www.youtube.com/watch?v=-6ZqL7cAsHw

6 days, 9 hours ago

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