Controlling a linear servo valve

Thread Starter

navidelec

Joined Jul 12, 2014
29
Dear friends
I want to know why parker control servo valve use's this type of controlling instead of a PWM signal to control the servo valve?
I wonder if you tell me what is the name of this type of controlling a servo valve?
 

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alfacliff

Joined Dec 13, 2013
2,458
pwm controlled valves lack feedback. an analog conrtolled valve uses a feedback pot and comparator to wet the position of the valve. that way, they can have as much torque as needed for the job.
 
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