DISPOSITIVO DE ALIMENTACAO DE CIRCUITO DE COMANDO DE COMPONENTE INTERRUPTOR DE POTENCIA

摘要

Power supply device for a drive circuit (2) of a power switching component (3), using the voltage appearing at the terminals of this component in the off state, the device including a energy storage capacitor (C2), characterized in that it further includes means (L, C1, D1) for charging the said energy storage capacitor during the periods of conduction by the said component.