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:
Apr. 21, 2009
Filed:
Jul. 02, 2004
Roelf Van Der Wal, Eindhoven, NL;
Antonius Jacobus Johannes Werner, Eindhoven, NL;
Roelf Van Der Wal, Eindhoven, NL;
Antonius Jacobus Johannes Werner, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method and device for measuring a switched current (I) comprises: sensing the switched current (I) with an AC current transformer to obtain an intermediate measuring signal (V); receiving a timing signal indicating on and off periods of the switched current (I); during an off period, generating an auxiliary signal such that the sum of the intermediate measuring signal and the auxiliary signal is equal to zero; and during an on period, adding the intermediate measuring signal and said the auxiliary signal and providing the sum signal as the output measuring signal, the output measuring signal reflecting an actual value of the AC part and the DC part of the switched current (IH).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile