US 11,997,773 B2
Light emitting diode, LED, based current splitter for splitting an LED current between a plurality of LED channels as well as a multi-channel light emitting diode, LED, based lighting device
Henricus Marius Joseph Maria Kahlman, Dongen (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 17/637,750
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Sep. 1, 2020, PCT No. PCT/EP2020/074258
§ 371(c)(1), (2) Date Feb. 23, 2022,
PCT Pub. No. WO2021/043730, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 19195129 (EP), filed on Sep. 3, 2019.
Prior Publication US 2022/0287164 A1, Sep. 8, 2022
Int. Cl. H05B 45/46 (2020.01); H05B 45/20 (2020.01)
CPC H05B 45/46 (2020.01) [H05B 45/20 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A Light Emitting Diode (LED) based current splitter for splitting an LED current between a plurality of LED channels, wherein said current splitter comprises at least two in series connected LED circuits, wherein each LED circuit comprises:
a first branch comprising at least one LED;
a second branch connected in parallel over said first branch and comprising at least one LED and a branch switch connected in series with said at least one LED, wherein a forward voltage of said at least one LED in said second branch is lower than a forward voltage of said at least one LED in said first branch; and
a third branch connected in parallel over said first and second branch and comprising a shunt switch for shunting said first branch and said second branch.