Direct ac-to-dc converter for passive component minimization...

Details Direct ac-to-dc converter for passive component minimization... Direct ac-to-dc converter for passive component minimization...

H - Electricity

05

B

H05B 37/02 (2006.01) H02M 7/02 (2006.01)

Patent

CA 2749883

Disclosed herein is a power converter circuit for a LED lighting device. The power converter includes a pair of input terminals adapted to be connected to a signal source, at least one LED, a first circuit adapted to supply current to the at least one LED and including: a first bi-directional switch connected between one input terminal and one side of the at least one LED, and a second bi-directional switch connected between the other side of the at least one LED and the other input terminal, and a second circuit adapted to supply current to the at least one LED and including: a third bi-directional switch connected between the other input terminal and the one side of the at least one LED, and a fourth bi- directional switch connected between the one input terminal and the other side of the at least one LED.

La présente invention concerne un circuit convertisseur de puissance pour un dispositif d'éclairage à LED. Le convertisseur de puissance comprend une paire de bornes d'entrée conçues pour être connectées à une source de signal, au moins une LED, un premier circuit qui est conçu pour fournir du courant à la ou aux LED et qui comprend : un premier commutateur bidirectionnel connecté entre une première borne d'entrée et un premier côté de la ou des LED, et un deuxième commutateur bidirectionnel connecté entre l'autre côté de la ou des LED et l'autre borne d'entrée, et un second circuit qui est conçu pour fournir un courant à la ou aux LED et qui comprend : un troisième commutateur bidirectionnel connecté entre l'autre borne d'entrée et le premier côté de la ou des LED, et un quatrième commutateur bidirectionnel connecté entre la première borne d'entrée et l'autre côté de la ou des LED.

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