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. 22, 2025

Filed:

Jan. 31, 2023
Applicant:

Avago Technologies International Sales Pte. Limited, Singapore, SG;

Inventors:

Junjie Lu, Irvine, CA (US);

Jingbo Duan, Irvine, CA (US);

Jing Guo, Irvine, CA (US);

Jianhua Gan, Irvine, CA (US);

Jungwoo Song, Irvine, CA (US);

Xicheng Jiang, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/30 (2020.01); H05B 45/345 (2020.01); H05B 45/36 (2020.01); H05B 45/37 (2020.01);
U.S. Cl.
CPC ...
H05B 45/36 (2020.01); H05B 45/345 (2020.01); H05B 45/37 (2020.01);
Abstract

An apparatus includes a digital ramp generator comprising a delay line, the delay line comprising one or more delay elements and an oscillator, wherein the digital ramp generator is configured to generate a code based on respective outputs of the one or more delay elements, a digital to analog converter coupled to the digital ramp generator, wherein the digital to analog converter is configured to generate a reference signal, wherein the reference signal is generated based, at least in part, on the code, and a driver coupled to the digital to analog converter, the driver configured to generate a drive current based, at least in part, on the reference signal.


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