Patent ID: 11950338
Assignee: SEMISILICON TECHNOLOGY CORP.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A parallel sequenced LED light string, comprising:
a plurality of LED modules, connected in parallel through a power wire with a plurality of wire resistances, wherein each of the LED modules comprises a work circuit and an adjustable impedance component,
wherein the parallel-connected LED modules receive a constant supply power via the power wire, and the work circuits of the plurality of LED modules respectively detect different voltages through the wire resistances and the adjustable impedance components from the supply power so as to sequence the LED modules,
wherein a look-up table is built in each of the work circuits, and the work circuits execute comparison, determination, and identification between detected voltages on the plurality of LED modules and a plurality of voltage ranges of the look-up table to determine the sequence of the LED modules, and
wherein the detected voltages on the LED modules are gradually changed.