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.

Date of Patent:
Nov. 10, 2015

Filed:

Oct. 26, 2011
Applicants:

James G. Deak, Jiangsu, CN;

Insik Jin, Jiangsu, CN;

Xiaofeng Lei, Jiangsu, CN;

Weifeng Shen, Jiangsu, CN;

Songsheng Xue, Jiangsu, CN;

Inventors:

James G. Deak, Jiangsu, CN;

Insik Jin, Jiangsu, CN;

Xiaofeng Lei, Jiangsu, CN;

Weifeng Shen, Jiangsu, CN;

Songsheng Xue, Jiangsu, CN;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01); G01R 31/02 (2006.01); G01R 15/14 (2006.01);
U.S. Cl.
CPC ...
G01R 33/09 (2013.01); G01R 15/148 (2013.01); G01R 31/025 (2013.01); G01R 33/098 (2013.01);
Abstract

A transducer is disclosed for detecting the AC and DC voltage difference between two nodes in an electrical circuit and electronically transmitting the measured voltage difference to an electrical system that is electrically isolated from the common mode potential of the two nodes. The voltage drop between two points in a circuit under test is determined by detecting the current flowing through a resistive shunt coil connected in parallel to the test points. Current through the resistive shunt coil is linearly proportional to the voltage difference between the test points, and it is detected by using a magnetic sensor that is separated from the shunt coil by an insulating dielectric barrier. The transducer can be packaged in a standard integrated circuit package in order to provide a small and low cost voltage transducer for test, measurement, control, and signal-isolation applications.


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