Patent classifications
G01R15/207
CURRENT SENSOR AND ELECTRIC CONTROL DEVICE
A magnetic sensor for detecting magnetism generated from a conductor in which a current flows in a first direction includes a magnetic detection unit capable of detecting the magnetism, a magnetization core, and a magnetic shield. The magnetization core includes a first core section, which is substantially parallel to the first direction, and a second core section and third core section, which are each continuous from both end portions of the first core section in a second direction that is orthogonal to the first direction. The second core section and the third core section each extend from an end portion of the first core section to follow a third direction that is orthogonal to the first direction and the second direction. The magnetic detection unit has a sensitivity direction in the second direction and is positioned in a core gap sandwiched between the vicinity of the end portion of the second core section and the vicinity of the end portion of the third core section in the third direction. The magnetic shield includes a plate-shaped shield portion positioned to overlap the core gap when viewed along the third direction.
Sensor devices with sensor chip and busbar
A sensor device comprises a dielectric substrate, a busbar mechanically connected to the dielectric substrate, a cavity formed in the dielectric substrate, and a sensor chip arranged in the cavity, wherein the sensor chip is designed to detect a magnetic field induced by an electric current flowing through the busbar, wherein in an orthogonal projection of the sensor chip onto the busbar, the sensor chip at least partly overlaps the busbar.
Magnetic sensor device
A magnetic sensor device includes a magnetic field converter that receives an input magnetic field input along a first direction and outputs an output magnetic field along a second direction, which is orthogonal to the first direction. A magnetic field detector is provided at a position where the output magnetic field can be applied. A magnetic shield that blocks an external magnetic field along the second direction. is provided. The magnetic field converter has a shape in which the length in a third direction, which is orthogonal to both the first direction and the second direction, is longer than the length in the second direction, when viewed along the first direction. The magnetic shield is provided at a position overlapping with the magnetic field converter and the magnetic field detector, when viewed along the first direction.
Chip Package with Contact Clip
According to an exemplary embodiment, a semiconductor component includes a chip carrier, a semiconductor chip mounted on the chip carrier, and a chip package made of potting compound. The potting compound only partially surrounds the semiconductor chip, such that at least part of an upper side of the semiconductor chip is not covered by the potting compound. The semiconductor component further includes a clip that is mechanically connected to the upper side of the semiconductor chip.
MAGNETIC CURRENT SENSOR INTEGRATION INTO HIGH CURRENT CONNECTOR DEVICE
A power connector is provided that is configured to conduct a current. The power connector includes a base structure, an extension structure, and a connector head structure that define a current path for the current. The base structure is coupled to an output node of a primary conductor and receives the current from the primary conductor. The connector head structure is configured to output the current from the power connector to the load. The extension structure is coupled to and extends between the base structure and the connector head structure. The extension structure includes a current constriction region configured to increase a magnetic flux density of a magnetic field produced by the current flowing through the current constriction region at a position of a magnetic current sensor that generates a sensor signal based on the magnetic field magnetic field produced by the current flowing through the current constriction region.
CURRENT MEASUREMENT SYSTEM
A current measurement system comprising a multi-phase open loop current transducer for measuring phase currents (I.sub.1, I.sub.2, I.sub.3) flowing in a plurality n of primary conductors of a multi-phase electrical system. The transducer comprises a housing, a magnetic core including first and second core parts and a plurality n+1 of magnetic field detectors mounted in the housing between the first and second core parts in which portions of the primary conductors traversing the current transducer housing are positioned. The system further comprises a non-volatile memory in which information on at least one coupling matrix (K), pre-defined in a calibration procedure, is stored.
HIGH ACCURACY NON-INVASIVE CURRENT SENSOR SYSTEM
System and methods for high accuracy, non-intrusive current sensing are provided. A system may include two magnetic field sensors configured for differential sensing. The system may further include frontend circuitry configured to remove direct current (DC) offset of the magnetic field sensors, upconvert the outputs of the magnetic field sensors, and filter out at least one frequency component from the up-converted signals. The system may receive output signals from the front-end circuitry corresponding to each sensor. The system may further calculate a differential signal based on the output signals. The system may apply optimal detection based on the differential signal and a reference signal to calculate a measurement of current flow. The system may determine a phase angle measurement between the differential signal and the reference signal to calculate a direction of the current flow in the conductor and output various measurement information related to the detected current.
CURRENT SENSOR
A current sensor has: a magnetism detection unit that can detect a component, in a first direction, of a magnetic field generated when a current flows in a current path; a shield member that can block an external magnetic field; a circuit board on which the magnetism detection unit is mounted; and a fixing member, composed of a magnetic material, that fixes the shield member to the circuit board. The first direction is parallel to the front surface of the circuit board. The shield member has two opposing plates placed so that their plate surfaces face each other in the first direction. The magnetism detection unit is placed by being interposed between the two opposing plates in the first direction. The fixing member extends toward both sides of the magnetism detection unit in the first direction when viewed along the normal of the front surface of the circuit board.
CURRENT SENSOR
A current sensor according to the present invention includes a bus bar through which a measuring current flows; a nut with which the bus bar and an external terminal are brought into contact with and fastened to each other; a magnetic sensor capable of detecting a magnetic field generated when a current flows through the bus bar; a case member having a housing area in which the magnetic sensor is allowed to be housed, the case member sealing the bus bar and the nut inside; and a cover member provided over the housing area. The case member has an open part in which a portion of the nut is exposed. The open part is covered by an insulative protective member. Therefore, shavings generated when a bolt for fastening an external terminal is screwed into the nut are prevented from dropping to the outside of the current sensor.
Current measuring device for detecting a current in an electric line
A current measuring device for detecting a current in an electric line includes: a housing; a fastening device arranged on the housing for fastening the housing to a supporting rail; and at least one magnetic field sensor. The housing has a first housing part and a second housing part which together form an accommodating device for accommodating an electric line between the first and second housing parts. The first and second housing parts are separable from one another in order to place an electric line onto the current measuring device and placeable onto one another in order to accommodate the electric line in the accommodating device between the first and second housing parts. The at least one magnetic field sensor detects a magnetic field on the electric line accommodated in the accommodating device.