Hello all,
As the title says, I'm attempting to control a linear 12V actuator with a potentiometer (or two!)
Attached is a diagram of how I plan to wire it up.
Can anyone give me some pointers if what I am doing is;
a) Stupid
b) Ridiculous
c) Insane
Or otherwise give me their ringing endorsement?
Essentially, I am wanting to convert small movement (input to Pot A) to big movement (Actuator), and have the actuator stop when the movement stops. To explain it another way, imagine Pot A is set in a position, X, and this is the fully retracted position for the actuator. When I dial Pot A upwards, I want the actuator to extend proportional to the speed of the input, and stop if the input stops (even if it stopped halfway or at some random point). If I reverse the input to Pot A, I then want the actuator to retract (also proportional to speed).
I thought to achieve this via a 2 x Pot, 1 x op-amp setup - a pot to control input, a 'feedback' pot, and the op-amp as in the attached picture.
Any thoughts??
Cheers
As the title says, I'm attempting to control a linear 12V actuator with a potentiometer (or two!)
Attached is a diagram of how I plan to wire it up.
Can anyone give me some pointers if what I am doing is;
a) Stupid
b) Ridiculous
c) Insane
Or otherwise give me their ringing endorsement?
Essentially, I am wanting to convert small movement (input to Pot A) to big movement (Actuator), and have the actuator stop when the movement stops. To explain it another way, imagine Pot A is set in a position, X, and this is the fully retracted position for the actuator. When I dial Pot A upwards, I want the actuator to extend proportional to the speed of the input, and stop if the input stops (even if it stopped halfway or at some random point). If I reverse the input to Pot A, I then want the actuator to retract (also proportional to speed).
I thought to achieve this via a 2 x Pot, 1 x op-amp setup - a pot to control input, a 'feedback' pot, and the op-amp as in the attached picture.
Any thoughts??
Cheers
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