Assembly group for current measurement
First Claim
1. An assembly group for current measurement, comprising a conductor plate having three cuts wherein the first and third cut start from a first edge of the conductor plate and wherein the second cut starts from an opposing second edge of the conductor plate and is arranged between the first and third cut, so that a first and a second conductor section is formed in the conductor plate wherein a current direction in the second conductor section is opposite to a current direction in the first conductor section, a measuring element with two magnetic field sensors that are sensitive to a component of the magnetic field that runs parallel parallel to a surface of the conductor plate and perpendicularly to the current direction in the first conductor section, wherein the measuring element is placed on the conductor plate in such a way that the first magnetic field sensor is located above the first conductor section and the second magnetic field sensor above the second conductor section and wherein the magnetic field sensors are formed from magnetic field sensitive sensing elements that are realized on at least one semiconductor chip.
3 Assignments
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Accused Products
Abstract
An assembly group for current measurement comprises a conductor plate with three cuts and a measuring element placed on the conductor plate that has a difference sensor formed from two magnetic field sensors. By means of the three cuts a first and a second conductor section are formed in the conductor plate, wherein the current direction in the second conductor section runs opposite to the current direction in the first conductor section. The first magnetic field sensor is located above the first conductor section and the second magnetic field sensor is located above the second conductor section. The magnetic field sensors are sensitive to a magnetic field that runs parallel to the surface of the conductor plate and orthogonal to the current direction in the two conductor sections.
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Citations
14 Claims
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1. An assembly group for current measurement, comprising
a conductor plate having three cuts wherein the first and third cut start from a first edge of the conductor plate and wherein the second cut starts from an opposing second edge of the conductor plate and is arranged between the first and third cut, so that a first and a second conductor section is formed in the conductor plate wherein a current direction in the second conductor section is opposite to a current direction in the first conductor section, a measuring element with two magnetic field sensors that are sensitive to a component of the magnetic field that runs parallel parallel to a surface of the conductor plate and perpendicularly to the current direction in the first conductor section, wherein the measuring element is placed on the conductor plate in such a way that the first magnetic field sensor is located above the first conductor section and the second magnetic field sensor above the second conductor section and wherein the magnetic field sensors are formed from magnetic field sensitive sensing elements that are realized on at least one semiconductor chip.
Specification