Electronics > Beginners
Signal Generator - Working Diagram?
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queennikki1972:
Can anyone verify if this is a working diagram?

https://maker.pro/custom/tutorial/how-to-build-a-signal-generator

ledtester:
Here's a simpler op-amp function generator circuit that you might find helpful:

http://www.learningaboutelectronics.com/Articles/Function-generator-circuit.php


Zero999:

--- Quote from: queennikki1972 on July 30, 2019, 02:40:38 pm ---Can anyone verify if this is a working diagram?

https://maker.pro/custom/tutorial/how-to-build-a-signal-generator

--- End quote ---
Yes, design will work quite well up to a few kHz.


--- Quote from: ledtester on July 30, 2019, 02:52:16 pm ---Here's a simpler op-amp function generator circuit that you might find helpful:

http://www.learningaboutelectronics.com/Articles/Function-generator-circuit.php

--- End quote ---
Yes, that will also work. The big downside is the amplitude of the triangle and sine wave outputs will vary, depending on the frequency setting.

One way to overcome this issue is to use a triangle wave generator and a triangle-to-sine converter circuit. See the thread linked below:
https://www.eevblog.com/forum/beginners/simple-analog-function-generator-design/msg1174983/#msg1174983
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