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公开(公告)号：US11194004B2
公开(公告)日：2021-12-07
申请号：US16788505
申请日：2020-02-12
发明人： P. Karl Scheller , Devon Fernandez
摘要： A sensor includes a detector configured to sense a parameter, at least one test circuit configured to detect a respective fault condition of the sensor and generate a fault signal in response to detecting the fault condition, a checker configured to test the at least one test circuit to determine the operational status of the at least one test circuit, and an output signal generator, coupled to receive the sensed parameter, the fault signal, and the operational status of the at least one test circuit. The output signal generator is configured to generate an output signal of the sensor to communicate the sensed parameter and the operational status of the at least one test circuit.
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公开(公告)号：US11170858B2
公开(公告)日：2021-11-09
申请号：US16822119
申请日：2020-03-18
IPC分类号： G11C16/04 , G11C16/34 , G11C16/14 , G11C16/26 , G01R33/09 , G11C11/406 , G11C11/4074 , G11C5/05 , G11C16/08
摘要： A method for use in a memory device including a first memory matrix is provided, the method comprising: receiving a write request that is associated with a first memory cell, the first memory cell being part of the first memory matrix; copying a content of a second memory cell into a register, the second memory cell being part of the first memory matrix; overwriting the second memory cell with the content of the register when the content of the second memory cell is different from the content of the register; and writing, to the first memory cell, at least a portion of data that is associated with the write request.
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公开(公告)号：US11169221B2
公开(公告)日：2021-11-09
申请号：US16801493
申请日：2020-02-26
发明人： Jeffrey Eagen
IPC分类号： G01R33/00 , G01R33/025 , G01R33/09 , G01R33/07
摘要： A magnetic field sensor is provided, including a substrate, a first bridge circuit formed on the substrate, the first bridge circuit being arranged to generate a first signal indicative of a motion of a target, and a second bridge circuit formed on the substrate, the second bridge circuit being arranged to generate a second signal indicative of whether the magnetic field sensor is aligned with the target.
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公开(公告)号：US11163022B2
公开(公告)日：2021-11-02
申请号：US14737739
申请日：2015-06-12
发明人： Steven Daubert
摘要： A magnetic field sensor includes a phase-locked loop to receive a measured magnetic field signal formed from sensing element output signals of a plurality of magnetic field sensing elements in response to a magnetic field. The phase-locked loop is configured to generate an angle signal having a value indicative of the angle of the magnetic field. Associated methods are also described.
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公开(公告)号：US20210325480A1
公开(公告)日：2021-10-21
申请号：US16849179
申请日：2020-04-15
摘要： Methods and apparatus for a magnetic field sensor having dynamic offset compensation that determines offset voltages for a number of phases each having a bias current across a magnetic field sensing element in a different direction. Pairs of the determined offset voltages for the phases are combined and one of the combined pairs of offset voltages is selected based on a criteria, such as lowest voltage level.
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公开(公告)号：US20210325434A1
公开(公告)日：2021-10-21
申请号：US17363700
申请日：2021-06-30
摘要： A method can use a current sensor that can include a magnetic flux concentrator along with first and second magnetic field sensing elements disposed proximate to the magnetic flux concentrator, wherein the magnetic flux concentrator is operable to influence a direction of first and second magnetic fields at the first and second magnetic field sensing elements, respectively, the first and second magnetic fields resulting from an electrical current passing through a conductor, the first and second magnetic field sensing elements operable to generate first and second signals, respectively, in response to the first and second magnetic fields, respectively, wherein the current sensor can also include a differencing circuit operable to subtract the first and second signals to generate a difference signal related to the electrical current.
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公开(公告)号：US11150273B2
公开(公告)日：2021-10-19
申请号：US16884311
申请日：2020-05-27
发明人： Shixi Louis Liu , Paul A. David , Shaun D. Milano , Rishikesh Nikam , Alexander Latham , Wade Bussing , Natasha Healey , Georges El Bacha
IPC分类号： H01L23/495 , G01R15/08 , H01L43/04 , H01L43/06
摘要： A current sensor integrated circuit (IC) includes a unitary lead frame having at least one first lead having a terminal end, at least one second lead having a terminal end, and a paddle having a first surface and a second opposing surface. A semiconductor die is supported by the first surface of the paddle, wherein the at least one first lead is electrically coupled to the semiconductor die and the at least one second lead is electrically isolated from the semiconductor die. The current sensor IC further includes a first mold material configured to enclose the semiconductor die and the paddle and a second mold material configured to enclose at least a portion of the first mold material, wherein the terminal end of the at least one first lead and the terminal end of the at least one second lead are external to the second mold material.
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公开(公告)号：US20210293910A1
公开(公告)日：2021-09-23
申请号：US16822488
申请日：2020-03-18
摘要： In one aspect, a bridge includes a first magnetoresistance element having a first reference angle, a second magnetoresistance element in series with the first magnetoresistance element and having a second reference angle, a third magnetoresistance element in parallel with the first magnetoresistance element and having the first reference angle and a fourth magnetoresistance element in series with the third magnetoresistance element and having the second reference angle. An output of the bridge has a linear response over a range of horizontal magnetic field values not centered about a zero value and a reference angle indicates an angle the magnetoresistance element is most sensitive to changes in a magnetic field.
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公开(公告)号：US11127518B2
公开(公告)日：2021-09-21
申请号：US16574419
申请日：2019-09-18
发明人： Paolo Campiglio , Amal Hamdache , Julien Voillot
IPC分类号： H01F10/32
摘要： In one aspect, a tunnel magnetoresistance (TMR) element includes a magnesium oxide (MgO) layer, a cobalt iron boron (CoFeB) layer in direct contact with the MgO layer and a cobalt iron (CoFe) layer. The TMR element also includes a tantalum layer in direct contact with the CoFeB layer and the CoFe layer.
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公开(公告)号：US20210278485A1
公开(公告)日：2021-09-09
申请号：US16809823
申请日：2020-03-05
摘要： Methods and apparatus for combining redundant signals to generate outputs signals with enhanced accuracy and/or risk level. In embodiments, first signals are generated by a first transducer and second signals are generated by a second transducer. In other embodiments, first signals are generated by a first die and second signals are generated by a second die. An amount of overlap between error distributions of the first and second signals can be used to detect failure and/or indicate risk of failure.
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