Hi,
I'm trying to design a circuit to control hydraulic valve that requires voltage (not the common PWM found in most other hydraulic valves) to control.
I have joystick with 5K pot that would like to utilize for this project.
The valve will stay in the centre (neutral) at 3.5V and swings of 1.5 volt up or down will make it open in the appropriate direction. I'm not sure what is the current draw requirement, but i thin 1A will be sufficient. So in brief:
2V max open one way
3.5V neutral position
5V max open the other way
My initial idea was to do the with LM317 adjustable regulator control, but I'm ready to aboundon it as can't make the resistors values to adjust the output as per the valve requirements with the 2.5V output being provided when the wiper is in the middle 2.5K on each side
Any ideas how or what schematic can meet the above requirements?