The invention relates to a self-powered remote control device comprising:                transmission means,        a feeder circuit connected to the transmission means,        a generator supplying electric power connected to the feeder circuit, and        control means associated to the electric power generator.        
Known remote control devices generally comprise a transmitter and a receiver to control an electrical apparatus. Transmitters of known type have electronic circuits enabling a high frequency, infrared or ultrasonic electromagnetic radiation to be emitted. The radiation emitted by the transmitters is preferably modulated and encoded to provide satisfactory operating safety when several transmitters and receivers are used.
The receivers receive the emitted radiation, then detect and decode the signal received. The decoded signal is used by electronic circuits to control in particular electrical apparatuses.
Fixed or mobile self-powered transmitters generally require a power supply provided by disposable or rechargeable batteries. Management of replacement of the batteries makes the use of self-powered transmitters extremely constraining. Furthermore, frequent use of the transmitters leads to rapid discharge of the batteries and consequently to frequent replacements and a high operating cost. Self-powered transmitters are also liable to present defects or to stop functioning if the batteries are discharged or missing.
Devices exist whose generator is an oscillating magnetic circuit. However the power supplied by such generators is low and the remote control devices are bulky. A device of this type is described in U.S. Pat. No. 4,471,353.
Other devices comprising an electromagnetic generator with higher performance are described in the European Patent application EP-0,826,166. However, in these devices the volume can not be sufficiently reduced for them to be integrated in apparatuses of small dimensions.