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:
Sep. 11, 2018
Filed:
Mar. 31, 2017
Applicant:
Stmicroelectronics (Research & Development) Limited, Marlow, GB;
Inventor:
Denise Lee, Edinburgh, GB;
Assignee:
STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, Buckinghamshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/042 (2006.01); H01S 5/026 (2006.01); H01S 5/183 (2006.01);
U.S. Cl.
CPC ...
H01S 5/042 (2013.01); H01S 5/0261 (2013.01); H01S 5/183 (2013.01);
Abstract
A driver circuit is configured to pass a current. The circuit includes a first transistor connected in series with the laser diode, and configured to regulate the current. A voltage regulator is configured to provide an input to a gate of the first transistor so as to regulate the current in dependence upon a regulator input and a feedback input at the voltage regulator.