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:
May. 14, 2002
Filed:
Aug. 16, 2000
Joseph Carl Burba, Ramona, CA (US);
Robert W. Minck, Southfield, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A system ( ) and method for canceling a leakage current is provided that uses line voltages (L , L ) that are out of phase with each other to produce a counter leakage potential that cancels leakage current. In one embodiment of the invention, the actual potential of the phases is measured ( ) and used to determine the counter potential that is to be applied to the line voltage (L or L ) that is generating the leakage current. The counter potential is applied to the appropriate line voltage by way of a transistor circuit (Q , Q ). The transistor circuit (Q , Q ) is controlled through standard electronic circuitry ( ), or by way of a microprocessor device ( ).