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公开(公告)号：US12105121B2
公开(公告)日：2024-10-01
申请号：US17836243
申请日：2022-06-09
CPC分类号： G01R15/202 , G01R15/205 , G01R19/0092
摘要： A current sensor includes a current transferring conductor to conduct current and four magnetic field sensors with the magnetic field sensors being divided into two pairs of magnetic field sensors. The two magnetic field sensors are arranged in a V-shaped manner on one face of the current transferring conductor. Two magnetic field sensors are arranged in a V-shaped manner on the other face of the current transferring conductor. Of the magnetic field sensors arranged in a V-shaped manner, the ones of each side running parallel to each other form one pair.
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公开(公告)号：US11988692B2
公开(公告)日：2024-05-21
申请号：US17864778
申请日：2022-07-14
申请人： DENSO CORPORATION
发明人： Hiroaki Miwa , Akito Sasaki , Ryosuke Sakai , Takuma Esaka , Tatsuaki Sugito
CPC分类号： G01R15/205 , G01R15/207 , G01R19/0092
摘要： A current sensor includes a plurality of individual sensors and a wiring case. Each of the individual sensors includes an electrical-conduction member through which a measurement current to be measured flows, a magnetoelectric converter and an insulating sensor housing. The magnetoelectric converter converts a measurement magnetic field caused by a flow of the measurement current into an electric signal. The sensor housing accommodates the electrical-conduction member and the magnetoelectric converter therein. The wiring case is larger than the sensor housing. The wiring case includes an insulating integrated housing in which the plurality of individual sensors is fixed, and an input/output wiring disposed in the integrated housing and electrically connected to the megnetoelectric converter of each of the plurality of individual sensors.
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公开(公告)号：US20240151751A1
公开(公告)日：2024-05-09
申请号：US18053905
申请日：2022-11-09
发明人： Matthieu THOMAS , Radek ZEIPL , Petr BILY
IPC分类号： G01R19/165 , G01R15/20 , G01R19/10 , H03K5/24 , H03K19/20
CPC分类号： G01R19/16571 , G01R15/202 , G01R15/205 , G01R19/10 , H03K5/24 , H03K19/20
摘要： Output buffer diagnostic circuits for monitoring a sensor output buffer include a duplicate resistive network corresponding to a resistive network in the monitored sensor output buffer. The duplicate resistive network may include the same or similar topology as the output buffer resistive network. The duplicate resistive network is configured to produce a differential duplicate signal indicative of when an error condition exits in the sensor output buffer. The diagnostic circuit can include averaging circuitry configured to receive the differential duplicate signal and produce an average duplicate signal. The diagnostic circuit can include an error comparison circuit configured to receive the average duplicate signal and detect when the average duplicate signal exceeds a nominal or preset error value corresponding to an error condition in the sensor output buffer. The error comparison circuit is configured to produce an error indication when the average duplicate signal exceeds the preset error value.
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公开(公告)号：US11953526B2
公开(公告)日：2024-04-09
申请号：US17849947
申请日：2022-06-27
申请人： DENSO CORPORATION
发明人： Akito Sasaki , Ryosuke Sakai , Hiroaki Miwa , Takeshi Tsukamoto , Hiroshi Nomura , Takuma Esaka , Tatsuaki Sugito
CPC分类号： G01R15/205 , G01R15/207 , G01R19/0092
摘要： A current sensor includes a wiring board, a shield, an insulating sensor housing, and a shield adhesive. The wiring board and the shield are accommodated in the sensor housing. The sensor housing has a shield support part to support the shield, and a shield adhesion part. An application surface of the shield adhesion part is further from the shield than a contact surface of the shield support part. The shield is mounted on the contact surface of the shield support part, and the shield adhesive is disposed between the application surface of the shield adhesion part and the shield. The shield and the wiring board are aligned with and spaced from each other in the sensor housing.
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公开(公告)号：US20240110951A1
公开(公告)日：2024-04-04
申请号：US18538546
申请日：2023-12-13
申请人： TDK CORPORATION
发明人： Takafumi KOBAYASHI , Norikazu OTA , Kenzo MAKINO
CPC分类号： G01R15/205 , G01R19/0092 , G01R33/09
摘要： A magnetic field detection apparatus includes a magnetoresistive effect element and a coil. The coil includes first and second tier parts opposed to each other in a first axis direction, with the magnetoresistive effect element interposed therebetween. The coil is configured to be supplied with a current and thereby configured to generate an induction magnetic field to be applied to the magnetoresistive effect element in a second axis direction. The first tier part includes first conductors extending in a third axis direction, arranged in the second axis direction and coupled in parallel to each other. The second tier part includes a second conductor or second conductors extending in the third axis direction, the second conductors being arranged in the second axis direction and coupled in parallel to each other. The first conductors each have a width smaller than a width of the second conductor or each of the second conductors.
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6.发明公开公开(公告)号：US20240110940A1
公开(公告)日：2024-04-04
申请号：US18533694
申请日：2023-12-08
CPC分类号： G01R1/0416 , G01R15/202 , G01R15/205 , G01R15/207 , H01R4/304 , H01R13/6683
摘要： 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 extension structure is coupled to and extends between the base structure and the connector head structure. The connector head structure includes a bore-hole that vertically extends into the connector head structure toward the base structure. The bore-hole is configured to receive a fastener for coupling the power connector to an electrical interface of a device. The connector head structure has a mechanical engagement feature configured to mechanically engage with a torque stabilization tool during a fastening of the fastener to the connector head structure in order to prevent a torque applied by the fastening of the fastener from being transferred to the extension structure.
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公开(公告)号：US20230288453A1
公开(公告)日：2023-09-14
申请号：US18017251
申请日：2021-07-12
申请人： LEM International SA
IPC分类号： G01R15/20
CPC分类号： G01R15/207 , G01R15/202 , G01R15/205
摘要： An open-loop electrical current transducer for surface mounting on an external circuit board, including an integrated circuit (IC) chip including a magnetic field sensing portion and connection terminals on a first active side of the IC chip, a lead frame arrangement including a primary conductor and a plurality of secondary conductors comprising IC connection portions, a plurality of bond wires interconnecting the IC connection portions to the connection terminals of the IC chip, and an insulating overmold housing overmolded over the IC chip, the bond wires, and a portion of the lead frame arrangement. The lead frame arrangement is formed from sheet metal having a base sheet of thickness B wherein at least portions of the lead frame arrangement include a thickness equal to the base sheet thickness B. The first active side of the IC chip faces the lead frame arrangement and at least a portion of the lead frame arrangement includes a thinned portion of thickness T between 20% and 80% of the base sheet thickness B, the thinned portion of thickness T including the IC connection portions of the secondary conductors.
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公开(公告)号：US20230204630A1
公开(公告)日：2023-06-29
申请号：US18111170
申请日：2023-02-17
申请人： TDK CORPORATION
发明人： Yuta SAITO , Hiraku HIRABAYASHI
IPC分类号： G01R15/20 , G01R31/364
CPC分类号： G01R15/207 , G01R15/205 , G01R31/364
摘要： A magnetic sensor device includes a first detection circuit that generates a first detection signal, a coil through which a feedback current is passed to generate a cancellation magnetic field, a second detection circuit that generates a second detection signal having a correspondence with a value of the feedback current, and a control circuit that controls the feedback current. In a closed-loop operation, the control circuit controls the feedback current so that the first detection signal has a constant value. In an open-loop operation, the control circuit maintains the feedback current at a constant value.
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公开(公告)号：US20190146009A1
公开(公告)日：2019-05-16
申请号：US15812849
申请日：2017-11-14
IPC分类号： G01R15/20
CPC分类号： G01R15/205 , G01R15/202 , G01R15/207
摘要： Magnetic sensors may be positioned around an opening for a wire to measure the current flowing through the wire. A non-symmetric positioning of the sensors around the target measurement zone can enable an expanded measurement zone compared to conventional current measurement devices. Further, some sensors may be paired such that a hypothetical line connecting the sensors is tangential to the target measurement zone. Other sensors may be paired such that a hypothetical line between the sensors crosses the target measurement zone. The different pairs of the sensors can enable a reduction in the impact of stray field interference on the measurement of the current flowing through the wire.
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公开(公告)号：US20190041279A1
公开(公告)日：2019-02-07
申请号：US16151684
申请日：2018-10-04
CPC分类号： G01L1/125 , G01L1/12 , G01L1/127 , G01L3/10 , G01L3/102 , G01L3/105 , G01L9/16 , G01R15/205 , G01R33/091
摘要： A system includes a magnetostrictive sensor. The magnetostrictive sensor includes a driving coil configured to receive a first driving current and to emit a first magnetic flux portion through a target and a second magnetic flux portion. The magnetostrictive sensor also includes a first sensing coil configured to receive the first magnetic flux portion and to transmit a signal based at least in part on the received first magnetic flux portion. The received first magnetic flux portion is based at least in part on a force on the target. The magnetostrictive sensor includes a magnetic shield disposed between the driving coil and the first sensing coil. The magnetic shield is configured to reduce the second magnetic flux portion received by the first sensing coil. The magnetic shield includes a composite with a conductive material and an insulating material, a metamaterial, or a mesh structure, or any combination thereof.
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