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. 30, 2010
Filed:
Sep. 29, 2006
Matthew Blaha, Holmdel, NJ (US);
Luis DE LA Torre, Daganzo de Arriba, ES;
Patrick J. Quirk, Huntsville, AL (US);
Fadi Saibi, Hoboken, NJ (US);
Matthew Blaha, Holmdel, NJ (US);
Luis de la Torre, Daganzo de Arriba, ES;
Patrick J. Quirk, Huntsville, AL (US);
Fadi Saibi, Hoboken, NJ (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
One embodiment monitors a line-side electrical current provided by a power sourcing equipment (PSE) port to a powered device (PD), the PSE port having a power-isolation transformer with a primary coil on an isolated side and a secondary coil on a line side. A switching signal having a switching period and a duty cycle is applied to the primary coil of the power-isolation transformer. A value is determined for an electrical current on the isolated side of the power-isolation transformer, conversion is performed between a line-side electrical current value Iand a corresponding isolated-side peak-current value I, and the line-side electrical current is indirectly monitored based on the determined isolated-side current value.