FIELD: physics; control.
SUBSTANCE: invention relates to automatic control. A control device comprises two integrators, an adder, a nonlinear functional element, an amplifier, a normally open controlled switch and a normally closed controlled switch. The second integrator has a longer time constant than the first. The nonlinear functional element has a characteristic 
where x is the device input signal; Uo is voltage which corresponds to a logic one level; x0 is a threshold value.
EFFECT: improved quality of control processes in different automation systems.
4 dwg
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