Abstract: The invention refers to a control device for an actuator (1). The device, controlled by a control valve (20; 71; 80, 81), comprises slides (30, 31) to obtain different conditions of the control valve, and these slides (30, 31) are activated by a two-position fluidics solenoid valve (32, 33) to which a set-point instruction is applied (6). The control device comprises a processor (10) to be assured of the response of the solenoid valve depending on the set-point instruction (6) over the full range that the actuator (1) can cover.

Abstract: The invention refers to a control device for an actuator (1). The device, controlled by a control valve (20; 71; 80, 81), comprises means (30, 31) to obtain different conditions of the control valve, and these means (30, 31) are activated by means of a two-position fluidics solenoid valve (32, 33) to which a set-point instruction is applied (6). The control device comprises furthermore means (10) to be assured of the response of the solenoid valve depending on the set-point instruction (6) over the full range that the actuator (1) can cover.

Abstract: A system controls a one-pole synchronous motor, with a magnetized rotor and a stator provided with two pairs of coils. The motor includes a floating common node to which are connected first coil terminals, the second terminal of each first coil of a coil pair is connected to a first supply terminal through a first respective switch, and the second terminal of each second coil of a coil pair is connected to a second supply terminal through a second respective switch. The control system includes a circuit operable for controlling switches in a stepping or self-switching mode, and at least one detection circuit using the voltage occurring at the floating common node so as to detect at least one operation condition of the motor.