Support

If you have a problem or need to report a bug please email : support@dsprobotics.com

There are 3 sections to this support area:

DOWNLOADS: access to product manuals, support files and drivers

HELP & INFORMATION: tutorials and example files for learning or finding pre-made modules for your projects

USER FORUMS: meet with other users and exchange ideas, you can also get help and assistance here

Nonlinear Taper Potentiometers

Post any examples or modules that you want to share here

Nonlinear Taper Potentiometers

Postby rocknrollkat » Tue Nov 21, 2017 8:47 pm

Okay gang, here's another goody (2, actually) that I think you will find useful.
I've never seen 'em before in Flowstone, only in real life.
Yup, like the title says, they're nonlinear taper pots !
And I needed a couple for a project I'm working on.
So I decided that it was time to build 'em, and this morning I built 'em and tested 'em.
For those of you who are wondering, here's what they're used for.
There are circuits in this world that have about 90% of their usefulness in the last (or first) 20% of the pot's rotation.
How many times have you fiddled with that minuscule 20% shaft rotation to get the setting you needed ?
These pots provide the antidote, the inverse curve that will linearize the pot's rotation so 50% rotation equals 50% effect.
Let's say you have a circuit with a logarithmic response curve.
Use an antilogarithmic pot to solve the problem !
Yea, I know these are square and square root functions, but they mimic the log curves pretty well.
Not to cheap out, I've included cube and cube root functions as well for those really tricky response curves !
And as always, they're Dead SIMPLE !

Enjoy 'em !

ROXY :D
Attachments
ROXY Pot Converters.fsm
You've thought about 'em, you've needed 'em, here they are !
(97.94 KiB) Downloaded 31 times
User avatar
rocknrollkat
 
Posts: 101
Joined: Mon Jan 04, 2016 7:04 pm
Location: Oakland Gardens, New York City, U.S.A.

Re: Nonlinear Taper Potentiometers

Postby martinvicanek » Wed Nov 22, 2017 5:12 am

rocknrollkat wrote:How many times have you fiddled with that minuscule 20% shaft rotation to get the setting you needed ?

So true! Thanks for sharing.
In this context you may also want to check out some more rant and material. ;)
martinvicanek
 
Posts: 709
Joined: Sat Jun 22, 2013 8:28 pm

Re: Nonlinear Taper Potentiometers

Postby rocknrollkat » Wed Nov 22, 2017 1:13 pm

martinvicanek wrote:
rocknrollkat wrote:How many times have you fiddled with that minuscule 20% shaft rotation to get the setting you needed ?

So true! Thanks for sharing.
In this context you may also want to check out some more rant and material. ;)


Hi Martin !
Thanks for your response and yes, I read the articles you mentioned, archived 'em a well
and of course downloaded your excellent examples.
Your math is much stronger than mine, and I am struggling to get myself up to speed
on this stuff (at 70 years old !)
Thanks again for your generosity !

Bill (ROXY) :D
User avatar
rocknrollkat
 
Posts: 101
Joined: Mon Jan 04, 2016 7:04 pm
Location: Oakland Gardens, New York City, U.S.A.


Return to User Examples

Who is online

Users browsing this forum: Majestic-12 [Bot] and 4 guests