US 12,432,830 B2
Cloned constant current LED drive circuit and method for use
Eric D. Sherriff, Nelson (CA)
Assigned to Methode Electronics, Inc., Chicago, IL (US)
Filed by Methode Electronics, Inc., Chicago, IL (US)
Filed on Aug. 25, 2022, as Appl. No. 17/895,488.
Application 17/895,488 is a continuation in part of application No. 17/387,283, filed on Jul. 28, 2021, granted, now 11,464,095.
Claims priority of provisional application 63/091,511, filed on Oct. 14, 2020.
Prior Publication US 2022/0408529 A1, Dec. 22, 2022
Int. Cl. H05B 45/30 (2020.01); H05B 45/345 (2020.01); H05B 45/46 (2020.01)
CPC H05B 45/345 (2020.01) [H05B 45/46 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A light emitting diode (LED) lighting module comprising:
an LED having a plurality of parallel current paths;
an electrical connection for connecting the module to an external electrical system; and
optionally a software stored in a storage media device for controlling electrical signals to the LED,
wherein one of the plurality of parallel current paths is connected to a sensing transistor and a current sink to drive a constant current through the LED and each of the other of the plurality of parallel current paths have cloning transistors, and
wherein a base of each of the cloning transistors and a base of the sensing transistor are electrically connected to each other.