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bi-directional potentiometer

bi-directional potentiometer

bi-directional potentiometer

(OP)
Hi, I'm looking for an alternative brand for this type of potentiometer.
using it for a joystick project. It should be able to work for +/- directions.

currently using Contelec (PL310 model) brand but curious if anyone have any idea on other brand which I can't find in google.
or is there any other name for it?

T.I.A

R.Efendy

RE: bi-directional potentiometer

It is quite common for potentiometers to have both ends of the resistor brought out.
Use a pair of suitable resistors to form a 50% voltage divider. Take your reference voltage from the 50% point and from the potentiometer wiper.
Properly done, the circuit will nul with the potentiometer wiper at 50% and give an increasing signal with the polarity determined by the direction of movement.

--------------------
Ohm's law
Not just a good idea;
It's the LAW!

RE: bi-directional potentiometer

(OP)
thank you for all replies. I also found the other name for the potentiometer. it is called centre tap potentiometer.

R.Efendy

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