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.

Date of Patent:
Jul. 08, 2025

Filed:

Jun. 13, 2024
Applicant:

Savant Technologies Llc, East Cleveland, OH (US);

Inventors:

Qiang Zou, ShaanXi, CN;

Zhichao Liu, Shanghai, CN;

Qi Yan, ShaanXi, CN;

Assignee:

SAVANT TECHNOLOGIES LLC, East Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/37 (2020.01); H05B 45/305 (2020.01); H05B 45/345 (2020.01);
U.S. Cl.
CPC ...
H05B 45/37 (2020.01); H05B 45/305 (2020.01); H05B 45/345 (2020.01);
Abstract

A driver and method for operating a driver circuit for a light-emitting diode (LED) device. In some embodiments, the driver circuit includes a rectifier operatively coupled to a ballast, a current regulator operatively coupled to the rectifier and to the LED device, and a detecting module operatively coupled to the LED device and to the current regulator. During a startup stage, the rectifier of the driver circuit rectifies direct current received from the ballast and provides the rectified current to the current regulator. The detecting module then detects a current through the LED device provided by the current regulator during the startup stage, wherein a value of the current through the LED device is a detecting indictor. The detecting module next provides the value of the current through the LED device to the current regulator which determines that it is outside a preset value range, converts the rectified current from the rectifier into a driving current having a value within the preset value range, and outputs the driving current to the LED device.


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