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:
Nov. 12, 2019
Filed:
Jun. 20, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
Luc Rambaud, Rennes, FR;
Stefan Mollov, Rennes, FR;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A common mode filter device () comprises two LC-filters () which are serially connected, two transformers () and an active current control circuit (). The transformers are dedicated to sensing a common mode current and injecting compensation currents driven by the current control circuit. The transformers provide electric isolation between the current control circuit and power-transferring connections of the common mode filter device. Continuing operation of an electrical apparatus which is power-supplied through the common mode filter device is also ensured in case of failure of the current control circuit, with the LC-filters still producing partial common mode filter function.
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