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:
Jan. 18, 2011
Filed:
Apr. 03, 2008
Terrence Michael Mcgill, Sr., Stevensville, MD (US);
David Bennitt Harris, Columbia, MD (US);
Michael Stephen Brown, Pasadena, MD (US);
Richard Hobbs, Walkersville, MD (US);
Curtis Keys, Mt Airy, MD (US);
Terrence Michael McGill, Sr., Stevensville, MD (US);
David Bennitt Harris, Columbia, MD (US);
Michael Stephen Brown, Pasadena, MD (US);
Richard Hobbs, Walkersville, MD (US);
Curtis Keys, Mt Airy, MD (US);
Ciena Corporation, Linthicum, MD (US);
Abstract
The present invention provides highly efficient system level EMI filtering in a dual feed Power Distribution Unit (PDU) using custom designed magnetic components that are uniquely designed to provide excellent performance under various load conditions. The PDU of the present invention includes filters for providing the necessary EMI filtering at all frequencies in the range between 200 Hz and 200 MHz under all load conditions including a single feed failure. Additionally, the present invention provides mechanisms for cooling EMI components using a combination of natural convection and conduction techniques at the board level to ensure no loss of EMI filtering performance. The present invention also includes blank panels made of formed Aluminum alloy sheet metal pieces or the like to direct air flow to components on printed wiring boards (PWB's) using air director plates.