US Patent No. 10,143,046

LIGHT EMITTING DIODE DRIVER WITH DIFFERENTIAL VOLTAGE SUPPLY


Patent No. 10,143,046
Issue Date November 27, 2018
Title Light Emitting Diode Driver With Differential Voltage Supply
Inventorship Julia Delos Ayllon, Eindhoven (NL)
Toni Lopez, Aachen (DE)
Machiel Antonius Martinus Hendrix, Budel-Dorplein (NL)
Eduardo-Jose Alarcon-Cot, Sant Cugat del Valles-Barcelona (ES)
Assignee PHILIPS LIGHTING HOLDING B.V., Eindhoven (NL)

Claim of US Patent No. 10,143,046

1. A Driver for driving one or more LEDs, the driver comprising:at least one driving unit configured to be supplied with a differential voltage comprising a first bias voltage and a second bias voltage, the first bias voltage and the second bias voltage being supplied concurrently, wherein the differential voltage is configured to be equal or larger than the largest expected variations of the forward voltage of said one or more LEDs.