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:
Jan. 14, 2025
Filed:
Jun. 16, 2021
Digital Grid Research Institute, China Southern Power Grid, Guangzhou, CN;
Peng Li, Guangzhou, CN;
Qiancheng Lv, Guangzhou, CN;
Bing Tian, Guangzhou, CN;
Licheng Li, Guangzhou, CN;
Bofeng Luo, Guangzhou, CN;
Zhong Liu, Guangzhou, CN;
Zhiming Wang, Guangzhou, CN;
Hongdi Sun, Guangzhou, CN;
Xu Yin, Guangzhou, CN;
Jiaming Zhang, Guangzhou, CN;
Digital Grid Research Institute, China S. Pwr Grid, Guangzhou, CN;
Abstract
A current sensor includes: four first uniaxial TMR chips and at least two second uniaxial TMR chips, each first uniaxial TMR chip and each second uniaxial TMR chip being located on the same virtual ring, wherein magnetic sensitive directions of the four first uniaxial TMR chips are perpendicular to a radius of the virtual ring, magnetic sensitive directions of two adjacent first uniaxial TMR chips are perpendicular to each other, magnetic sensitive directions of the two second uniaxial TMR chips are parallel to the radius of the virtual ring and opposite to each other, and the two second uniaxial TMR chips respectively have the same positions as two first uniaxial TMR chips; each first uniaxial TMR chip and each second uniaxial TMR chip are configured to collect a magnetic induction intensity, the magnetic induction intensity is configured to calculate a target current value of a to-be-measured wire.