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. 01, 2003
Filed:
May. 19, 2000
Andrzej Julian Gluszek, Liverpool, NY (US);
SSAC, Inc., Baldwinsville, NY (US);
Abstract
The present invention is a power monitoring circuit for sensing line conditions in a three phase power line. In the circuit a plurality of series connected power supplies for powering various components of the circuit are connected in series with a current sensing element for sensing current supplied to the power supplies. The power supply and current sensing element arrangement, in turn, is connected across a three phase bridge rectifier, which is in communication with the three phase power supply line. A circuit analyzer in communication with the current sensing element senses unbalanced line conditions based at least in part on a signal developed by the current sensing element. Preferably, the circuit further includes a three voltage reducing resistors interposed between the three phase power line and the bridge rectifier for reducing the voltage stresses encountered by the circuit's components.