Electro-hydraulic servo valve feedback controller
An electro-hydraulic servo valve and controller technology, applied in the direction of program control, computer control, general control system, etc., can solve problems such as insufficient performance, high output pressure, excessive vibration of servo valve output pressure, etc., to improve stability and accuracy, response speed improvement, and the effect of solving the output pressure swing
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[0012] An electro-hydraulic servo valve feedback controller, which is characterized by comprising a controller, a pressure sensor and a peripheral circuit; wherein the peripheral circuit includes an input signal acquisition circuit, a current signal output circuit and a fault switching circuit; an input signal acquisition circuit and a current signal output circuit And the failover circuit are connected to the controller; the controller is a microcontroller based on ATmega16, ATmega16 adopts advanced RISC structure, the code execution speed is high, and the work is reliable and stable.
[0013] In an electro-hydraulic servo valve feedback controller of the present invention, the input signal acquisition circuit includes an I / V conversion circuit and an A / D acquisition circuit, which can convert 4-40mA current into 0-5V that can be collected by a single-chip microcomputer. Voltage. The current signal output circuit includes a D / A output circuit and a V / I conversion circuit. The D...
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