Patent ID: 9553502
Date: 2017-01-24
CPC Classifications: H02M,H03K

Claim:
1. A control device for an inductive load comprising: a switching structure with at least one switching element, adapted for driving a current of determined value in the load as a function of a setpoint datum (CDE), a control unit ( the mechanism comprising means for: holding constant the maximum permitted value (Imax) of the current, during a temperature climb phase, equal to the upper limit value (Isup), as long as the temperature at the level of the switching element is lower than a first temperature threshold (Tsup), abruptly rendering the maximum permitted value of the current equal to the lower limit value (Iinf) as soon as the value of the temperature at the level of the switching element reaches the first temperature threshold (Tsup), and permitting the maximum permitted value of the current to climb back gradually to the upper limit value (Isup), during a temperature descent phase, as the temperature at the level of the switching element decreases, so that an equilibrium point is found.