Current sensor system

A technology of current sensor and magnetic sensor, applied in the field of current sensor system, can solve problems such as reducing current detection accuracy, and achieve the effect of improving suppression and improving detection accuracy

Pending Publication Date: 2020-08-21
ACEINNA TRANSDUCER SYST CO LTD
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Problems solved by technology

For current sensors, the presence of an external magnetic field in the non-sensitive axis direction will change the sensitivity of the magnetoresistive sensor in the current sensor, thereby reducing the detection accuracy of the current

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Embodiment Construction

[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. Unless otherwise specified, the words connected, connected, and joined in this document mean that they are electrically connected directly or indirectly.

[0021] Please refer to figure 1 As shown, it is a schematic structural diagram 100 of a current sensor system in an embodiment of the present invention. figure 1 The illu...

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Abstract

The invention provides a current sensor system. The system comprises: a first current sensor, which includes a first current-carrying conductor and a first magnetic sensor located around the first current-carrying conductor; a second current sensor, which comprises a second current-carrying conductor and a second magnetic sensor located around the second current-carrying conductor; wherein one endof the first current-carrying conductor is electrically connected to one end of the second current-carrying conductor, and a measured current flows through the first current-carrying conductor and the second current-carrying conductor in sequence. Compared with the prior art, in the current sensor system, an external magnetic field in a non-sensitive axis direction enables the output or sensitivity of the first current sensor to be increased or decreased, and the external magnetic field in the non-sensitive axis direction enables the output or sensitivity of the second current sensor to be decreased or increased, so that the external magnetic field suppression can be improved, and then the current detection precision is further improved.

Description

【Technical field】 [0001] The invention relates to the technical field of current sensors, in particular to a current sensor system using dual current sensors to enhance external magnetic field suppression. 【Background technique】 [0002] Current sensors for measuring the magnitude of current are widely used in various electronic devices. For current sensors, the presence of an external magnetic field in the non-sensitive axis direction will change the sensitivity of the magnetoresistive sensor in the current sensor, thereby reducing the detection accuracy of the current. [0003] Therefore, it is necessary to propose a technical solution to overcome the above problems. 【Content of invention】 [0004] One of the objectives of the present invention is to provide a current sensor system, which can improve the suppression of the external magnetic field, thereby improving the detection accuracy of the current. [0005] According to one aspect of the present invention, the pre...

Claims

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Application Information

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IPC IPC(8): G01R15/20G01R19/00
CPCG01R15/205G01R19/0092
Inventor 李大来蒋乐跃
Owner ACEINNA TRANSDUCER SYST CO LTD
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