Current sensor

A current sensor includes first to fourth magneto-resistive elements each having a resistance value; and a compensation current line applying a compensation magnetic field to the magneto-resistive elements. A bridge circuit is formed by the magneto-resistive elements. Resistance values of the first...

Full description

Saved in:
Bibliographic Details
Main Authors YAMAGUCHI HITOSHI, SHIMURA SHIGERU, HARATANI SUSUMU, MIYAZAKI MASAHIRO
Format Patent
LanguageEnglish
Published 26.11.2013
Subjects
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
NANOTECHNOLOGY
PERFORMING OPERATIONS
PHYSICS
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
TESTING
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:A current sensor includes first to fourth magneto-resistive elements each having a resistance value; and a compensation current line applying a compensation magnetic field to the magneto-resistive elements. A bridge circuit is formed by the magneto-resistive elements. Resistance values of the first and third magneto-resistive elements change together in one increasing/decreasing direction. Resistance values of the second and fourth magneto-resistive elements change together in the other increasing/decreasing direction. The compensation current is generated by a potential difference between the first and second junctions in response to application of voltage between the third and fourth junctions. The compensation current line includes first to fourth line portions. Each line portion extends in the same direction as the extending direction of the magneto-resistive elements, overlaps the corresponding magneto-resistive elements, and. The current-to-be-detected is detected based on the compensation current.
Bibliography:Application Number: US201113042833