Electrical actuator having a direct current motor

Details Electrical actuator having a direct current motor Electrical actuator having a direct current motor

2006-07-25

2006-07-25

Duda, Rina (Department: 2837)

Electricity: motive power systems

Supplied or controlled by space-transmitted electromagnetic...

C318S466000, C318S468000, C318S480000

Reexamination Certificate

active

07081724

ABSTRACT:
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 (F1) such that it is at most equal to twice the mains sector frequency or such that its ratio to the radio-wave receiver frequency (F0) ranges between 2.2 10−5to 2.2 10−4.

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