4 Channel Quadrature LFO

blue hell · Posted: Sun Jan 17, 2021 5:08 pm Post subject:

hmm something X Y Cool

Grumble · Posted: Mon Jan 18, 2021 7:09 am Post subject:

What You see here is the output signal of two of the four outputs of a quadrature LFO, four outputs all 90 degrees shifted and the idea is that you can choose 4 different wave forms for each output. I am playing with the idea to construct each wave form out of four parts of the four wave form types, e.g. you can have one output a clean sine wave, while the next consists of for different parts of wave forms, so you can have the first quarter a sine shape, the next quarter a saw part etc.
But that would take some extra programming... but I’m playing with the idea.
The four leds are red/green leds, so when an output is more positive than 2.5 volt it will light up green, lower as 2.5 volt it will light up red.(starting very dim to more brightness)

SCH-quadrature.pdf

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blue hell · Posted: Mon Jan 18, 2021 7:48 am Post subject:

Cool!

I'm finding 120 degrees nice to have too BTW Laughing

Grumble · Posted: Mon Jan 18, 2021 11:21 am Post subject:

What is special about 120 degrees?

blue hell · Posted: Mon Jan 18, 2021 11:44 am Post subject:

Grumble · Posted: Mon Jan 18, 2021 2:54 pm Post subject:

That makes sense... but would require so much more programming...

quadrofront.jpg

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quadroside.jpg

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Grumble · Posted: Wed Jan 20, 2021 3:00 am Post subject:

Demo (allow for subtitles)