Light Emitting Diode (LED) Dimmer Circuit and Dimming Method for LEDs
First Claim
1. A dimmer circuit for an event based integrated driver system for a light emitting diode (LED) lighting application that uses one or more LEDs, the dimmer circuit comprising:
- a front end module configured for receiving an external dimming input in at least one of an analog domain, a digital domain or software domain and for operating a dimming output;
an event generator for generating a plurality of events in a prioritized manner to trigger a respective response through the front end module; and
a firmware module configured for storing instructions for processing the plurality of events in the prioritized manner and for processing each response to implement a functionality in the dimming output;
wherein the front end module, the event generator and the firmware module are configured to communicate with each other to generate the dimming output of the one or more LEDs, wherein the dimming output has at least one of a linear profile, a non linear profile, a custom profile or combinations thereof.
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Accused Products
Abstract
A dimmer circuit (100) and a dimming method for an event based integrated driver system for a light emitting diode lighting application is disclosed. Dimmer circuit (100) includes a front end module for receiving an external dimming input in an analog domain, a digital domain or software domain and for operating a dimming output; an event generator for generating a plurality of events in a prioritized manner to trigger a respective response through front end module; and a firmware module configured for storing instructions for processing the plurality of events in the prioritized manner and for processing each response to implement a functionality in dimming output, where front end module, event generator and firmware module communicate with each other to generate dimming output of the one or more LEDs, and the dimming output has at least one of a linear profile, a non linear profile, a custom profile or combinations thereof.
10 Citations
30 Claims
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1. A dimmer circuit for an event based integrated driver system for a light emitting diode (LED) lighting application that uses one or more LEDs, the dimmer circuit comprising:
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a front end module configured for receiving an external dimming input in at least one of an analog domain, a digital domain or software domain and for operating a dimming output; an event generator for generating a plurality of events in a prioritized manner to trigger a respective response through the front end module; and a firmware module configured for storing instructions for processing the plurality of events in the prioritized manner and for processing each response to implement a functionality in the dimming output; wherein the front end module, the event generator and the firmware module are configured to communicate with each other to generate the dimming output of the one or more LEDs, wherein the dimming output has at least one of a linear profile, a non linear profile, a custom profile or combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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14. The dimmer circuit of claim 14 wherein a phase detection is done either based on number of strings of the multi string operation or by using pre-defined instructions in the firmware module.
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27. A method for obtaining a desired dimming profile for LED lighting application, the method comprising:
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receiving an external dimming input through a front end module and storing a plurality of parameters corresponding to the external dimming input in a configuration register; triggering one or more events corresponding to stored parameters; processing the one or more events based on pre-defined instructions in a firmware module to obtain the processed event, wherein the pre-defined instructions correspond the desired dimming profile; and generating a dimming output based on the processed event, wherein the dimming output has the desired dimming profile. - View Dependent Claims (28, 29, 30)
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Specification