发明授权
- 专利标题： Fluxgate device with low fluxgate noise
- 专利标题（中）： 磁通门装置磁通门噪声低
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申请号： US15141003申请日： 2016-04-28
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公开(公告)号： US09577185B1公开(公告)日： 2017-02-21
- 发明人: Dok Won Lee , Sudtida Lavangkul , Erika Lynn Mazotti , William David French
- 申请人： Texas Instruments Incorporated
- 申请人地址： US TX Dallas
- 专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人地址： US TX Dallas
- 代理商 Tuenlap D. Chan; Charles A. Brill; Frank D. Cimino
- 主分类号： H01L27/02
- IPC分类号： H01L27/02 ; H01L43/12 ; H01L27/22 ; H01L43/02 ; H01L23/528 ; H01L23/522 ; G01R33/04
摘要：
An integrated fluxgate device, which includes a magnetic core, an excitation coil, and a sense coil. The magnetic core has a longitudinal edge and a terminal edge. The excitation coil coils around the longitudinal edge of the magnetic core, and the excitation coil has a first number of excitation coil members within a proximity of the terminal edge. The sense coil coils around the longitudinal edge of the magnetic core, and the sense coil has a second number of sense coil members within the proximity of the terminal edge. For reducing fluxgate noise, the second number of sense coil members may be less than the first number of excitation coil members within the proximity of the terminal edge.
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