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A project of a typical proportional amplifier based on the Arduino platform

Gajewska Anna, Klarecki Klaudiusz

Selected Engineering Problems

2019

nr 8

11--14

In the paper was presented a possibility of application an Arduino controller as a core of a proportional amplifier for the hydraulic proportional valves. The proportional amplifier is an electronic module to drive the proportional valve via energizing the coils of its proportional solenoids. The characteristic features for this type of amplifier are: adjustable nominal current of proportional solenoid, internal feedback loop of the coil current, current offset and correction of the valve deadband. The authors' goal was to implement the basic functions of a typical proportional amplifier due the software method using a cheap Arduino controller. The attempt to use the Arduino controller as basic module of proportional amplifier was a success.