A power supply and control device for a plurality of electric actuators, the device comprising a control circuit and a power circuit, the power circuit having an inverter module connected to a switch module provided with connection means for connection to the actuators, the control circuit being connected to the switch module to operate it so as to connect the actuators sequentially to the inverter module, wherein the control circuit is arranged to control the inverter module and the switch module sequentially, and wherein the control circuit includes a monitoring module arranged to detect a malfunction of the device. An actuator assembly comprising a plurality of actuators and such a power supply and control device, and an aircraft including a plurality of actuators and such a power supply and control device of the above-specified type.
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