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Current sensor having hall element

  • US 20060284611A1
  • Filed: 06/08/2006
  • Published: 12/21/2006
  • Est. Priority Date: 06/21/2005
  • Status: Active Grant
First Claim
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1. A current sensor for detecting a detection object current comprising:

  • a current path for flowing the detection object current therethrough;

    a semiconductor substrate; and

    a Hall element disposed on a front side of the semiconductor substrate, wherein the Hall element is capable of detecting a magnetic flux generated by a magnetic field, which is caused by the detection object current when the detection object current flows through the current path, the Hall element generates a Hall voltage corresponding to the magnetic flux when a driving current flowing in a direction perpendicular to the semiconductor substrate is supplied to the Hall element, and when the magnetic flux having a component parallel to the semiconductor substrate affects the Hall element, the current path is disposed on the front side or a back side of the semiconductor substrate, and the current path is electrically isolated from the Hall element.

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