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:
Oct. 07, 2025

Filed:

Oct. 03, 2022
Applicant:

Silanna Asia Pte Ltd, Singapore, SG;

Inventors:

Joseph H. Colles, Bonsall, CA (US);

Steven E. Rosenbaum, San Diego, CA (US);

Stuart B. Molin, Carlsbad, CA (US);

Assignee:

Silanna Asia Pte Ltd, Singapore, SG;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/042 (2006.01); H01S 5/026 (2006.01); H01S 5/062 (2006.01); H01S 5/068 (2006.01); H01S 5/40 (2006.01);
U.S. Cl.
CPC ...
H01S 5/0428 (2013.01); H01S 5/0261 (2013.01); H01S 5/06216 (2013.01); H01S 5/06808 (2013.01); H01S 5/06825 (2013.01); H01S 5/4025 (2013.01);
Abstract

A pulsed laser diode driver includes a source capacitor that receives a refresh current at a first terminal and develops a source voltage therefrom. A first terminal of an inductor is connected to the first terminal of the source capacitor. A second terminal of the inductor is connected to an anode of a laser diode and a bypass capacitor. One or more switches are configured to control a current flow through the inductor. A timing and control circuit is configured to receive the source voltage and to generate one or more gate driver signals to control the switches to produce a high-current pulse through the laser diode. The high-current pulse corresponds to a peak current of a resonant waveform developed at the anode of the laser diode. A timing of the one or more gate driver signals is based on a voltage level of the source voltage.


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