Voltage divider, decrease the output voltage

[SimonTHK]

Hello Electro Tech Awesome

I am working with something prebuilt that uses a potentiometer as a voltage divider.

The voltage input is 3v and it should normally (middle positioned) have 1,5v.

This works fine, but I want to lower the gain of the output voltage. Lets say that I normally would have moved the potentiometer so it had an output of 1.7v but I rather want it to be 1.6v. Same goes for moving the potentiometer in the other direction, giving me 1.3v but I want 1.4v

I want it to be more precise, and I don't care that I lose some of my higher values.

But can it even be done in a simple way? I thought maybe a parallel voltage divider would work, it does abit, but it then differs the value from what side I go to from the middle position. Scaling from 1.1v - 1.5v and 1.5v - 2.4v

Can this be done in any way?

This is what I did so far I had an idea this would work, and I wont figure out why just now
The green circle is my newly added voltage divider.

PICTURE:
https://simonelectronics.weebly.com/electro-tech-online.html

 

[ericgibbs]

hi Simon.
If I am following you correctly, all you need is low value resistors from the pot to 0v

Whats the value of the pot on ohms.?
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[SimonTHK]

I wrote on picture that it is 0.7k each side (1.4k together), but that is wrong. The potmeter is 3.2k in total, I just measured this correctly.

What you are saying sounds for me as the same as what I have done. I may not change the 1.5v that is in the middle position. It is a potmeter with a spring, used on a RC transmitter for planes and stuff.
And sry bout the pictures showing girls, advertising on the upload side aparently.
Thanks in advange

 

[JimB]

And sry bout the pictures showing girls

I thought that was just some more electronics...

... fast pulse generators

JimB

 

[SimonTHK]

I thought that was just some more electronics...

... fast pulse generators

JimB

Yea lol, it sure does amplify something..

 

[ericgibbs]

Yea lol, it sure does amplify something..

Hi Simon,
Please repost the circuit diagram, without the ladies...
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[SimonTHK]

Hi Simon,
Please repost the circuit diagram, without the ladies...
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Fixed
https://simonelectronics.weebly.com/electro-tech-online.html

 

[MikeMl]

You do something like this:

 

[SimonTHK]

You do something like this:

Hi
Thanks that looks really good. What program are you using to create this?
thank you

 

[ericgibbs]

Hi
Thanks that looks really good. What program are you using to create this?
thank you

hi,
Its LTSpice, join the user group and a get a free download.
**broken link removed**

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