Electrical actuator having a direct current motor

摘要

An electrical mains-powered actuator designed to operate a closing, darkening or solar protection element, having in a common enclosure, a direct current motor, a board controlling the motor power supply and an AC/DC voltage converter, the control board including a radio-wave receiver, such that the voltage converter enables lowering of the voltage and includes at least one switch controlled at a frequency (F 1 ) such that it is at most equal to twice the mains sector frequency or such that its ratio to the radio-wave receiver frequency (F 0 ) ranges between 2.2 10^-5 to 2.2 10^-4.