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US 2026/0231307 A1Published application
Led driving arrangement
AssigneeSignify Holding B.V.
InventorsJIE FU, ZHIQUAN CHEN, GANG WANG
Life of this patent
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Abstract
An LED lighting circuit. A converting circuitry connects between a first LED load and a second LED load, and controls the power flow through the second LED load by converting a power flow through the first LED load and applying the converted power to the second LED load. The first LED load and the second LED load are connected in parallel and a bus voltage is above the forward voltage of first LED load but below the forward voltage of second LED load.
Claims11
A LED lighting circuit comprising:
- a primary power supply configured to output a primary output power on a bus such that the bus carries a bus voltage;
- a first LED load connected to the bus and with a forward voltage less than the bus voltage;
- a second LED load connected to the bus and with a forward voltage higher than the bus voltage;
- wherein the LED driving arrangement further comprises a converting circuit comprising:
- an input, wherein the first LED load and the input are connected in series across the bus;
- an output, wherein the second LED load and the output are connected in series across the bus, wherein a series connection of the second LED load and the output is in parallel with the series connection of the first LED load and the input;
- and
- a power conversion circuit connected between the input and the output and adapted to:
- receive, at the input, a power flowing through the first LED load;
- convert the power;
- and
- route the converted power to the second LED load via the output, to control the power flowing through the second LED load.
9 more elements
Dependencies are inferred from the claim text.