Active damping circuit for electric chopper circuit

Details Active damping circuit for electric chopper circuit Active damping circuit for electric chopper circuit

H - Electricity

02

M

H02M 1/34 (2007.01)

Patent

CA 2729177

The invention relates to a damping circuit for a chopper circuit that comprises at least one chopper transistor (3, y) having terminals connected to a first line (1) and to a second line (2), the first line (1) being at a power potential and the second line (2) being grounded, wherein the damping circuit includes a capacitive member (7) and a charge diode (6) of the capacitive member (7) connected together in series and mounted in parallel relative to the chopper transistor (3, 4), the damping circuit including an inductive member (8) having a first end connected to a connection point located between the charge diode (6) and the capacitive member (7), and a second end connected to one of the lines (1, 2).

Circuit d'amortissement pour circuit de découpage comportant au moins un transistor (3, y) de découpage ayant ""des bornes reliées à une première.ligne (1) et à une deuxième ligne (2), la première ligne (1) étant à un potentiel d'alimentation et la deuxième ligne (2) étant à la masse, le circuit d'amortissement comportant un élément capacitif (7) et une diode (6) de charge de l'élément capacitif (7) gui sont reliés l'un à l'autre en série et qui sont montés en parallèle du transistor de découpage (3,4), le circuit d'amortissement comprenant un élément inductif (8) ayant une première extrémité reliée à un point de raccordement situé entre la diode (6) de charge et l'élément capacitif (7) et une deuxième extrémité reliée à l'une des lignes (1,2).

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