| 发明名称 | Current sensor | ||
| 摘要 | A current sensor includes: four magnetic sensor elements arranged within a plane orthogonal to a measured current, having a symmetrical magnetic characteristics curve, and adapted to convert a magnitude of a magnetic field into an electrical signal and output the electrical signal; a bridge circuit including the four magnetic sensor elements; and a bias magnetic field application member adapted to applying a bias magnetic field to the magnetic sensor elements. | ||
| 申请公布号 | US9459293(B2) | 申请公布日期 | 2016.10.04 |
| 申请号 | US201414328748 | 申请日期 | 2014.07.11 |
| 申请人 | YOKOGAWA ELECTRIC CORPORATION | 发明人 | Mito Shinya;Takenaka Kazuma;Kato Satoshi |
| 分类号 | G01R19/00;G01R33/09;G01R15/20 | 主分类号 | G01R19/00 |
| 代理机构 | Hauptman Ham, LLP | 代理人 | Hauptman Ham, LLP |
| 主权项 | 1. A current sensor, comprising: four magnetic sensor elements arranged within a plane orthogonal to a measured current, having a symmetrical magnetic characteristics curve, and adapted to convert a magnitude of a magnetic field into an electrical signal and output the electrical signal; a bridge circuit including the four magnetic sensor elements; and a bias magnetic field application member adapted to applying a bias magnetic field to the magnetic sensor elements, wherein each of the magnetic sensor elements has a corresponding magnetic sensitive direction exhibiting a maximum sensitivity, and the magnetic sensitive directions of the magnetic sensor elements are four different directions arranged in the plane orthogonal to the measured current. | ||
| 地址 | Tokyo JP | ||