| 摘要 |
<p>The invention relates to an electromechanical device with variable resistive circuit for the control of a load. The device includes a connection (10) for a voltage source (12), and connection (14) capable of being linked to a load (16) supplied by the voltage source (12), a resistive circuit formed of a plurality of branches (B1, B2, ... Bn) mounted in parallel between the connections (10, 14) and each including a resistor (R1, R2, ... Rn) in series with a switch (I1, I2, ... In) having an initial contact state and mechanical means including a carriage (20) which can be displaced in translation between several predetermined positions, in each of which this carriage (20) can cooperate with at least one of the switches (I1, I2, ... In) in order to modify its initial contact state and vary the strength of the current crossing the load. Application in particular to the control of the speed of an electric motor of a fan of an installation for heating-ventilating and/or air-conditioning a motor vehicle. <IMAGE></p> |
