-
公开(公告)号：US12130342B2
公开(公告)日：2024-10-29
申请号：US17806336
申请日：2022-06-10
CPC分类号： G01R33/098 , G01R15/205 , G01R33/091
摘要： In one aspect, a magnetic field current sensor includes an annihilation detector. The annihilation detector includes an annihilation bridge that includes magnetoresistance elements. The annihilation detector also includes a current bridge that includes at least two of the magnetoresistance elements, a first comparator configured to compare an output signal from the annihilation bridge and a second comparator configured to compare an output signal from the current bridge. An output of the annihilation detector indicates whether an annihilation exists in one or more of the magnetoresistance elements using at least one of the outputs signals of the first and second comparators.
-
公开(公告)号：US20240356539A1
公开(公告)日：2024-10-24
申请号：US18303740
申请日：2023-04-20
发明人： John Horan , Guillaume Aulagnier
IPC分类号： H03K5/24 , H03K3/012 , H03K3/356 , H03K19/0185
CPC分类号： H03K5/2481 , H03K3/012 , H03K3/35613 , H03K19/018521
摘要： Methods and apparatus for a differential receiver having a differential latch. The latch can include first and second circuits each having first and second inputs to receive a differential input signal and first and second outputs to output a differential output signal. An offset structure includes a bandgap reference circuit with a first current source and a resistor, wherein the offset compensation structure provides a stable threshold for an input signal on the first and second inputs.
-
公开(公告)号：US12117291B2
公开(公告)日：2024-10-15
申请号：US18342041
申请日：2023-06-27
发明人： Christophe Lutz
CPC分类号： G01B7/30 , G01D5/20 , G01R33/072 , G01R33/091 , G01R33/093 , G01R33/098
摘要： A method for use in a sensor, comprising: generating a signal that is indicative of an angular position of a rotating target, the signal being generated by at least one magnetic field sensing element; adjusting the signal to produce an adjusted signal, the signal being adjusted based on a current value of a first adjustment coefficient and a current value of a second adjustment coefficient, the first adjustment coefficient including a gain adjustment coefficient, and the second adjustment coefficient including an offset adjustment coefficient; generating an output signal based on the adjusted signal; and updating the first adjustment coefficient, the updating including replacing the current value of the first adjustment coefficient with a new value of the first adjustment coefficient, the updating being performed by minimizing a function that is based on the current value of the first adjustment coefficient and the current value of the second adjustment coefficient.
-
4.发明授权公开(公告)号：US12102011B2
公开(公告)日：2024-09-24
申请号：US17999578
申请日：2021-05-27
摘要： A magnetic sensor including a plurality of magnetoresistive elements; each magnetoresistive element including a ferromagnetic layer having a magnetization that is orientable at or above a threshold temperature; the magnetic sensor further includes a plasmonic structure destined to be irradiated by electromagnetic radiation and including a spatially periodic plasmonic array of metallic structures. The period of the plasmonic array and the lateral dimension of the metallic structures are adjusted to obtain plasmon resonance of the plasmonic structure for a given wavelength of the electromagnetic radiation. The plasmonic array is arranged in the magnetic sensor such as to heat the first ferromagnetic layer at or above the threshold temperature, from the enhanced absorption of the electromagnetic radiation by plasmon resonance. The present disclosure further concerns a system including the sensor and an emitting device configured to emit electromagnetic radiation.
-
5.发明公开公开(公告)号：US20240295394A1
公开(公告)日：2024-09-05
申请号：US18177817
申请日：2023-03-03
发明人： Mohammed Safiuddin
IPC分类号： G01B7/30
CPC分类号： G01B7/30
摘要： Methods and apparatus for determining signal offset correction signals. In embodiments, first and second magnetic field sensing elements generate first and second channels that are in quadrature. Signal correction processing includes storing amplitudes of the first and second channel signals when an amplitude of the channel signals cross zero and determine an offset of the first and second channel signals based on the stored amplitudes.
-
公开(公告)号：US12078662B2
公开(公告)日：2024-09-03
申请号：US17850152
申请日：2022-06-27
CPC分类号： G01R15/202 , G01R19/0092 , H05K1/0225 , H05K1/18 , H05K2201/09854 , H05K2201/10151 , H05K2201/10689
摘要： A current sensor system includes a current sensor integrated circuit (IC) and a printed circuit board (PCB) having a ground plane with a feature configured to reduce an eddy current. The current sensor IC includes a lead frame comprising a die attach pad and at least one lead, a semiconductor die having a first surface attached to the die attach pad and a second, opposing surface, at least one magnetic field sensing element supported by the semiconductor die and configured to sense a current in a proximate primary conductor, and a non-conductive mold material enclosing the semiconductor die and a portion of the at least one lead. The PCB ground plane feature can take various forms such as a hole of a dimension larger than the current sensor IC, elongated cuts, or x-shaped cuts.
-
公开(公告)号：US12061937B2
公开(公告)日：2024-08-13
申请号：US17846455
申请日：2022-06-22
发明人： Ricardo Scheinkerman
摘要： A sensor system includes a signal sensing block including at least two sensing elements. Each of the at least two sensing elements is configured to generate an output that represents a first parameter associated with the sensor system. The sensor system also includes a data acquisition block configured to convert the outputs of the at least two sensing elements into digital data to be retrieved by a data retrieval block. The digital data is stored in one or more data registers of the data acquisition block. The sensor system also includes a data freeze block configured to cause the one or more data registers to refrain from updating with new data while the data retrieval block is retrieving the stored digital data.
-
公开(公告)号：US12032042B2
公开(公告)日：2024-07-09
申请号：US17660254
申请日：2022-04-22
发明人： Noémie Belin
CPC分类号： G01R33/0082 , G01R15/205 , G01R19/32 , G01R33/093 , G01R33/098
摘要： A sensor including: a substrate having a first region and a second region; a first series of first magnetoresistive (MR) elements formed on the substrate, the first series of first MR elements including at least two first MR elements; and a second series of second MR elements that is coupled in parallel with the first series of first MR elements to form a bridge circuit, the second series of second MR elements being formed on the substrate, the second series of second MR elements including at least two second MR elements, each of the at least two second MR elements having a different pinning direction than each of the at least two first MR elements, wherein one of the at least two first MR elements and one of the at least two second MR elements are formed in the first region of the substrate and have different pinning directions.
-
公开(公告)号：US20240219227A1
公开(公告)日：2024-07-04
申请号：US18149203
申请日：2023-01-03
IPC分类号： G01H11/02 , G01K3/00 , G01P3/44 , H02P29/024
CPC分类号： G01H11/02 , G01K3/005 , G01P3/44 , H02P29/024
摘要： According to some embodiments, a method for determining a fault status of a target system can include: receiving one or more magnetic field signals sensed by one or more magnetic field sensing elements of a sensor, the one or more magnetic field signals responsive to a magnetic field generated by a target object of the target system, the target object having repetitive motion; processing the one or more magnetic field signals to detect values of one or more parameters indicative of vibration of the target system; calculating deviations between the detected values and corresponding reference values of one or more parameters; determining a fault level of the target system based on the calculated deviations of one or more parameters; and generating an output signal indicating to the fault level.
-
10.发明公开公开(公告)号：US20240210498A1
公开(公告)日：2024-06-27
申请号：US18555075
申请日：2022-04-04
CPC分类号： G01R33/093 , G01R33/098 , G01R33/1284 , H01F10/3268 , H10N50/10 , G11C11/161
摘要： A method to calculate performance of a magnetic element including a reference bilayer including a ferromagnetic reference layer having a reference magnetization and an antiferromagnetic layer pining the reference magnetization by exchange-bias, the antiferromagnetic layer including a metallic polycrystalline material having a grain volume distribution; the method comprising: measuring an exchange-bias field (Hex) of the antiferromagnetic layer as a function of temperature; fitting a grain volume distribution function to the measured exchange-bias fields (Hex) to determine parameters characterizing the volume distribution function; calculating a variation in the direction of the reference magnetization as a function of a direction of an exposure magnetic field (H); and calculating the exchange bias field (Hex) for any value of the in-plane exposure magnetic field (H).
-
-
-
-
-
-
-
-
-
搜索结果
1185 条记录 (耗时 0.028 秒)
