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. 25, 2005
Filed:
Jan. 24, 2002
Jacob DE Vries, Allenwinden, CH;
Adrian Ulrich, Engelberg, CH;
Jacob De Vries, Allenwinden, CH;
Adrian Ulrich, Engelberg, CH;
Landis+Gyr AG, Zug, CH;
Abstract
The invention relates to a compensation circuit for the phase shift between a first input () for a voltage determination and a second input () for a current determination in electric meters for direct connection, whereby a DC-tolerant converter (), for current transformation, is arranged before said second input () and a high pass filter (R, C) is arranged before the first input (), for a first equalisation of the non-frequency-dependant phase compensation. A further equalisation of the phase compensation occurs by means of a correction device () in a measuring chip (), which is connected in series with the inputs () for voltage determination and current determination.