Current sensor having hall element
First Claim
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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Accused Products
Abstract
A current sensor includes: a current path; a semiconductor substrate; and a Hall element on the substrate. The Hall element detects a magnetic flux in a magnetic field caused by a detection object current. 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 semiconductor substrate. The current path is electrically isolated from the Hall element.
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Citations
10 Claims
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1. A current sensor for detecting a detection object current comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification