Apparatus and methods for external programming of processor of LED driver
AssigneeSignify Holding B.V.
InventorsRaman Nair Harish Gopala Pillai, Kaustuva Acharya
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Abstract
External programming of at least one processor (30) of a LED driver (10). In a normal operation mode a first control input (22B/22C) of the LED driver (10) may be provided to a first processor input of the processor and a second control input (22B/22C) of the LED driver may be provided to a second processor input of the processor (30). In a programming mode the first and second control inputs (22B, 22C) may be provided to programming inputs of the processor (30) to thereby enable programming of the processor (30) via the first and second control inputs (22B, 22C).
Claims16
A method of programming a processor of a LED driver, comprising:
- directing, in a normal operation mode, a first control input of said LED driver to a first processor input of said processor and a second control input of said LED driver to a second processor input of said processor;
- receiving a programming signal;
- entering a programming mode in response to said programming signal;
- and
- directing, in said programming mode, said first control input to a third processor input of said processor and said second control input to a fourth processor input of said processor, wherein said third processor input and said fourth processor input are programming inputs,
- wherein entering the programming mode comprises supplying stored energy from a capacitor to a switching device electrically coupled to a selector output of said processor.
A LED driver having a reprogrammable processor, comprising:
- a mains power supply input;
- a LED power supply output providing a refined LED power supply output from said mains power supply input;
- a processor configuring at least one characteristic of said LED power supply output, said processor having a first processor input, a second processor input, a third processor input, and a fourth processor input;
- a first control input coupled only to said first processor input in a normal mode and coupled to said third processor input in a programming mode;
- a second control input coupled only to said second processor input in said normal mode and coupled to said fourth processor input in said programming mode, wherein said third processor input and said fourth processor input are programming inputs;
- a switching device configured to route said first control input to said third processor input in said programming mode, wherein said switching device has a selector input coupled to a selector output of said processor;
- and
- a capacitor coupled in parallel with said selector output and coupled to said selector input.
A method of programming a processor of a LED driver, comprising:
- directing, in a normal operation mode, a first control input of said LED driver to a first processor input of said processor and a second control input of said LED driver to a second processor input of said processor;
- receiving a programming signal;
- entering a programming mode in response to said programming signal;
- and
- directing, in said programming mode, said first control input to a third processor input of said processor and said second control input to a fourth processor input of said processor,
- wherein said third processor input and said fourth processor input are programming inputs, and
- wherein at least one of the first processor input and the second processor input receives, in said normal mode, sensor signals from sensing at least one characteristic of an LED module driven by the LED driver;
- wherein entering the programming mode comprises supplying stored energy from a capacitor to a switching device electrically coupled to a selector output of said processor.
Dependencies are inferred from the claim text.