Device for controlling at least one diode

A driver member for driving at least one diode, the driver member comprising a circuit card to which the diode is connected, said circuit card comprising a printed circuit having the following mounted thereon:

• a current regulator module adapted to regulate a power supply current passing through the diode, the current regulator module including an “end” component connected in series with the diode;
• a storage capacitor connected in parallel with the diode and the end component, the storage capacitor being used for storing a certain quantity of power supply electrical energy, the power supply current coming at least in part from this power supply electrical energy;
• and
• a stray inductor element connected between the storage capacitor and the diode,
• the diode, the end component, the storage capacitor and the stray inductor element being connected in such a manner as to form a circuit loop extending substantially in a thickness of the circuit card, and thereby forming a resonant circuit,
• wherein a resonance frequency of the resonance circuit is determined from inductance of the stray inductor element and capacitance of the storage capacitor and is substantially equal to reciprocal of twice the duration of a power supply current pulse of the circuit loop, and
• wherein at the moment when the power supply current pulse ends, current flowing from the stray inductor element to the storage capacitor is at a maximum, thereby serving to optimize charging of the storage capacitor, and thus recovery of stored electrical energy contained in the stray inductor element.