[sdiy] LFO VC Skew?

[Tom Wiltshire]

My VCLFO and TAPLFO designs have this feature (“Distort CV” alters all waveforms using phase distortion). Doing the waveform generation in firmware makes it easier than doing it fully analog. All parameters are 0-5V inputs, so easy to set up for CV control.

https://electricdruid.net/electric-druid-chips-the-next-generation/ <https://electricdruid.net/electric-druid-chips-the-next-generation/>

HTH,
Tom

==================
       Electric Druid
Synth & Stompbox DIY
==================

> On 17 Feb 2020, at 14:01, ackolonges fds <ackolonges at hotmail.com> wrote:
> 
> Hi All,
> 
> I'm a big fan of the 'skew' (sweep from sawtooth, through triangle, over to ramp wave) function of some analogue LFOs and find it indispensable. I would love to be able to CV the skew function though it generally doesn't seem to be an option. Some circuits seem to control skew by having a pot control the balance between current flowing each direction via two diodes with opposite polarity (eg. the MFOS VCLFO circuit, or the Nicolas Woolaston LFO circuit), which seems like a particularly tricky thing to be able to voltage-control.
> 
> I was wondering if anyone here knows of any existing circuits which provide that functionality, or have any ideas as to how one may go about making it happen?
> 
> Thanks a lot for any input 🙂
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