The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2025
Filed:
Oct. 14, 2022
Diodes Incorporated, Plano, TX (US);
Dongjie Cheng, Murphy, TX (US);
Vijay Hugar, Hubballi, IN;
Sumit Bhat, Hubballi, IN;
Joy Das, Shyamnagar, IN;
Diodes Incorporated, Plano, TX (US);
Abstract
An apparatus includes a plurality of MOSFET device groups connected in parallel, wherein a first common node of the plurality of MOSFET device groups is coupled to a cathode of a light emitting diode channel of a plurality of light emitting diode channels, and a second common node of the plurality of MOSFET device groups is connected to ground, and a control circuit configured to generate gate drive signals for the plurality of MOSFET device groups, wherein the gate drive signals are configured to adjust a current flowing through the light emitting diode channel based on a predetermined color and a predetermined brightness level of the light emitting diode channel, and under different duty cycles, the control circuit is configured to control the current flowing through the light emitting diode channel to be proportional to a corresponding duty cycle.