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:
May. 06, 2025
Filed:
Apr. 06, 2023
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Karan Goel, Gurugram, IN;
Chander Gupta, Gurugram, IN;
Sujoy Mandal, Gurugram, IN;
Anand Kumar, Gurugram, IN;
Assignee:
Ciena Corporation, Hanover, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2005.12); H03H 7/42 (2005.12);
U.S. Cl.
CPC ...
H03H 7/427 (2012.12); H03H 7/0115 (2012.12); H03H 7/0153 (2012.12);
Abstract
A single stage electromagnetic interference (EMI) filter circuit includes a power source input configured to connect to a power source; an equivalent common mode and differential mode filter including a single inductor having both common mode inductance for common mode filtering and specific parasitic inductance; and a differential capacitance stage connected to the single inductor in parallel, wherein a combination of the specific parasitic inductance and capacitance of the differential capacitance stage are used to provide differential mode filtering.