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. 19, 1999

Filed:

Dec. 23, 1996
Applicant:
Inventor:

James B Hutchison, Palo Alto, CA (US);

Assignee:

Acuson Corporation, Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
333181 ; 333185 ; 333 12 ;
Abstract

An EMI filter and method of manufacturing thereof is described. The filter includes two or more power conductors and a ground conductor. The power conductors and the ground conductor are separately wound onto a core to form a common-mode choke. The filter may be located in an equipment chassis. Capacitors may be coupled to the choke to improve filter performance. The core may comprise at least two magnetic beads. The core material and number of turns of the conductors may be chose to control the frequency range of common-mode noise rejection. The frequency range may be that in which adequate common-mode noise rejection is achieved for a diagnostic ultrasound machine, e.g., approximately 0 to 20 MHz.


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Hutchison, James. (1999). Common-mode emi filter with a separately wound ground winding (U.S. Patent No. 5969583). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5969583

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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