Unified 0-10v and dali dimming interface circuit

H - Electricity – 05 – B

Patent

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Details

H05B 37/02 (2006.01) H05B 41/36 (2006.01) H05B 41/392 (2006.01)

Patent

CA 2740629

Systems and methods are disclosed that facilitate switching a lamp ballast between DALI and analog control states as a function of control state information stored prior to the ballast being powered of and control information received by an interface circuit for the ballast circuit. A depolarization circuit is coupled to the interface circuit and ensures consistent polarity across a rectifier circuit regardless of the polarity of two control wires coupled to a miswiring protection circuit in the interface circuit. In this manner, a single interface circuit provides dual 0-10V analog and DALI control for dimming a lighting device regardless of whether a wall-mounted controller coupled to the interface circuit is an analog or a DALI type controller, thereby mitigating a need to switch out a ballast circuit coupled to the lighting devise when changing between DALI and analog type controllers.

L'invention concerne des tiges SN et des procédés qui facilitent la commutation d'un ballast de lampe entre des états DALI et de commande analogique en fonction des informations d'état de commande stockées préalablement au ballast activé et les informations de commande reçues par un circuit d'interface pour le circuit de ballast. Un circuit de dépolarisation est couplé au circuit d'interface et garantit une polarité constante au circuit redresseur quelle que soit la polarité de deux fils de commande couplés à un circuit de protection contre de mauvais branchements dans le circuit d'interface. Ainsi, un circuit d'interface simple fournit une commande double 0-10V analogique et DALI pour faire varier un dispositif d'éclairage qu'importe si une unité de commande posée sur une paroi couplée au circuit d'interface est une unité de commande de type analogique ou DALI, ce qui permet d'atténuer une nécessité d'interrompre un circuit de ballast couplé au dispositif d'éclairage lors du changement entre des unités de commande de type DALI et analogique

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