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:
Dec. 07, 2021
Filed:
Jun. 13, 2019
Applicant:
Stmicroelectronics (Research & Development) Limited, Marlow, GB;
Inventors:
Denise Lee, Edinburgh, GB;
Graeme Storm, Kirkliston, GB;
Aravind Venugopalan Nair Jalajakumari, Edinburgh, GB;
Alexios Alexandropoulos, Edinburgh, GB;
Assignee:
STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, Marlow, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/042 (2006.01); H02M 3/07 (2006.01); H01S 5/068 (2006.01); G01S 7/481 (2006.01); G01S 17/06 (2006.01);
U.S. Cl.
CPC ...
H01S 5/042 (2013.01); H01S 5/0428 (2013.01); H01S 5/06825 (2013.01); H02M 3/07 (2013.01); G01S 7/4814 (2013.01); G01S 17/06 (2013.01);
Abstract
A driver circuit for a laser diode is configured to pass a current. The circuit includes a charge-pump configured to generate an output boosted positive supply rail voltage. At least one switch is configured to couple the output of the charge-pump to a terminal of the laser diode and to isolate the positive supply rail from the terminal of the laser diode when the charge-pump is enabled.