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公开(公告)号：US20160161571A1
公开(公告)日：2016-06-09
申请号：US15043924
申请日：2016-02-15
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Mikhail Valeryevich Ivanov
CPC classification number: G01R33/0041 , G01R33/0023 , G01R33/04
Abstract: Compact, low power fluxgate magnetic sensor readout circuits and apparatus are presented in which demodulator or rectifier circuit to modulates a sense signal from the fluxgate sense coil, and the demodulated signal is provided to an amplifier circuit with a transconductance or other amplifier and one or more feedback capacitors connected between the amplifier input and amplifier output to integrate the amplifier output current and provide a voltage output signal indicating the magnetic field sensed by the fluxgate sensor.
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2.发明授权公开(公告)号：US09704637B2
公开(公告)日：2017-07-11
申请号：US14176171
申请日：2014-02-10
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Caspar Petrus Laurentius van Vroonhoven , Sudarshan Udayashankar , Gebhard Haug , Mikhail Valeryevich Ivanov
CPC classification number: H01F13/006 , G01R15/185 , G01R15/20 , H01F27/427
Abstract: Automated degaussing methods and apparatus are presented for degaussing a magnetic core in close loop fashion, in which a plurality of pulses are applied to a compensation coil magnetically coupled with the core with duration or energy being decreased in succeeding pulse cycles according to a discrete feedback algorithm, and with individual pulse polarities being set according to core magnetization polarity measured subsequent to an immediately preceding pulse.
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3.发明申请METHOD AND APPARATUS FOR DEMAGNETIZING TRANSFORMER CORES IN CLOSED LOOP MAGNETIC CURRENT SENSORS 有权封闭式环形电流传感器中变压器晶圆的方法与装置公开(公告)号：US20150016006A1
公开(公告)日：2015-01-15
申请号：US14176171
申请日：2014-02-10
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Caspar Petrus Laurentius van Vroonhoven , Sudarshan Udayashankar , Gebhard Haug , Mikhail Valeryevich Ivanov
IPC: H01F13/00
CPC classification number: H01F13/006 , G01R15/185 , G01R15/20 , H01F27/427
Abstract: Automated degaussing methods and apparatus are presented for degaussing a magnetic core in close loop fashion, in which a plurality of pulses are applied to a compensation coil magnetically coupled with the core with duration or energy being decreased in succeeding pulse cycles according to a discrete feedback algorithm, and with individual pulse polarities being set according to core magnetization polarity measured subsequent to an immediately preceding pulse.
Abstract translation: 提供了自动消磁方法和装置，用于以闭环方式消磁磁芯，其中多个脉冲被施加到与磁芯磁耦合的补偿线圈，其中持续时间或能量根据离散反馈算法在随后的脉冲周期中减小 并且根据在紧接在前的脉冲之后测量的磁芯磁化强度来设定各个脉冲极性。
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公开(公告)号：US20140218018A1
公开(公告)日：2014-08-07
申请号：US13838576
申请日：2013-03-15
CPC classification number: G01R15/20 , G01R15/148 , G01R15/207 , G01R33/0005 , G01R33/02 , G01R33/09
Abstract: Improved current sensing methods and apparatus and conductor apparatus are presented for sensing current in a bus bar or other conductor using one or more circular magnetic sensors or multiple magnetic sensors disposed on a substrate in a pattern surrounding a longitudinal path within the outer periphery of the conductor to avoid or mitigate sensed magnetic field crosstalk and to facilitate use of high sensitivity magnetic sensors at locations inside the conductor periphery in which the magnetic field is relatively small.
Abstract translation: 提出了改进的电流感测方法和装置和导体装置，用于使用一个或多个圆形磁性传感器或多个磁性传感器来感测母线或其它导体中的电流，所述圆形磁性传感器或多个磁性传感器以围绕导体的外周边内的纵向路径的图案设置在基板上 以避免或减轻感测的磁场串扰并且便于在磁场相对较小的导体周边内的位置处使用高灵敏度的磁传感器。
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公开(公告)号：US09684039B2
公开(公告)日：2017-06-20
申请号：US15043924
申请日：2016-02-15
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Mikhail Valeryevich Ivanov
CPC classification number: G01R33/0041 , G01R33/0023 , G01R33/04
Abstract: Compact, low power fluxgate magnetic sensor readout circuits and apparatus are presented in which demodulator or rectifier circuit to modulates a sense signal from the fluxgate sense coil, and the demodulated signal is provided to an amplifier circuit with a transconductance or other amplifier and one or more feedback capacitors connected between the amplifier input and amplifier output to integrate the amplifier output current and provide a voltage output signal indicating the magnetic field sensed by the fluxgate sensor.
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Patent Agency Ranking
公开(公告)号：US09229066B2
公开(公告)日：2016-01-05
申请号：US14174289
申请日：2014-02-06
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Martijn Fridus Snoeij , Mikhail Valeryevich Ivanov
CPC classification number: G01R33/04 , G01J5/16 , G01K7/10 , G01L19/0092 , G01R15/20 , G01R33/0023 , G01R33/02 , G01R35/005
Abstract: Improved magnetic sensor excitation circuitry is presented for providing a periodic bidirectional excitation waveform to a fluxgate magnetic sensor excitation coil using a bridge circuit connected to the excitation coil and having lower transistors for switched selective connection to a current mirror input transistor to mirror a current provided by pulsed current source, and with integrated filtering to control pulse rise times and slew rate.
Abstract translation: 提出了改进的磁传感器激励电路，用于使用连接到励磁线圈的桥式电路向磁通门磁传感器励磁线圈提供周期性双向激励波形，并具有用于与电流镜输入晶体管的开关选择性连接的下部晶体管，以反映由 脉冲电流源，并具有集成滤波器，可控制脉冲上升时间和转换速率。
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公开(公告)号：US20150048820A1
公开(公告)日：2015-02-19
申请号：US14177323
申请日：2014-02-11
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Mikhail Valeryevich Ivanov
CPC classification number: G01R33/0041 , G01R33/0023 , G01R33/04
Abstract: Compact, low power fluxgate magnetic sensor readout circuits and apparatus are presented in which demodulator or rectifier circuit to modulates a sense signal from the fluxgate sense coil, and the demodulated signal is provided to an amplifier circuit with a transconductance or other amplifier and one or more feedback capacitors connected between the amplifier input and amplifier output to integrate the amplifier output current and provide a voltage output signal indicating the magnetic field sensed by the fluxgate sensor.
Abstract translation: 提出了紧凑型低功率磁通门磁传感器读出电路和装置，其中解调器或整流器电路用于调制来自磁通门检测线圈的感测信号，并且将解调信号提供给具有跨导或其它放大器的放大器电路以及一个或多个 反馈电容器连接在放大器输入和放大器输出之间，以集成放大器输出电流，并提供指示磁通门传感器感测到的磁场的电压输出信号。
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公开(公告)号：US20150048818A1
公开(公告)日：2015-02-19
申请号：US14174289
申请日：2014-02-06
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Martijn Fridus Snoeij , Mikhail Valeryevich Ivanov
IPC: G01R33/00
CPC classification number: G01R33/04 , G01J5/16 , G01K7/10 , G01L19/0092 , G01R15/20 , G01R33/0023 , G01R33/02 , G01R35/005
Abstract: Improved magnetic sensor excitation circuitry is presented for providing a periodic bidirectional excitation waveform to a fluxgate magnetic sensor excitation coil using a bridge circuit connected to the excitation coil and having lower transistors for switched selective connection to a current mirror input transistor to mirror a current provided by pulsed current source, and with integrated filtering to control pulse rise times and slew rate.
Abstract translation: 提出了改进的磁传感器激励电路，用于使用连接到励磁线圈的桥式电路向磁通门磁传感器励磁线圈提供周期性双向激励波形，并具有用于与电流镜输入晶体管的开关选择性连接的下部晶体管，以反映由 脉冲电流源，并具有集成滤波器，可控制脉冲上升时间和转换速率。
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公开(公告)号：US20160116550A1
公开(公告)日：2016-04-28
申请号：US14987549
申请日：2016-01-04
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Martijn Fridus Snoeij , Mikhail Valeryevich Ivanov
CPC classification number: G01R33/04 , G01J5/16 , G01K7/10 , G01L19/0092 , G01R15/20 , G01R33/0023 , G01R33/02 , G01R35/005
Abstract: Improved magnetic sensor excitation circuitry is presented for providing a periodic bidirectional excitation waveform to a fluxgate magnetic sensor excitation coil using a bridge circuit connected to the excitation coil and having lower transistors for switched selective connection to a current mirror input transistor to mirror a current provided by pulsed current source, and with integrated filtering to control pulse rise times and slew rate.
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公开(公告)号：US09261571B2
公开(公告)日：2016-02-16
申请号：US14177323
申请日：2014-02-11
Applicant: TEXAS INSTRUMENTS DEUTSCHLAND GMBH
Inventor： Viola Schaffer , Mikhail Valeryevich Ivanov
CPC classification number: G01R33/0041 , G01R33/0023 , G01R33/04
Abstract: Compact, low power fluxgate magnetic sensor readout circuits and apparatus are presented in which demodulator or rectifier circuit to modulates a sense signal from the fluxgate sense coil, and the demodulated signal is provided to an amplifier circuit with a transconductance or other amplifier and one or more feedback capacitors connected between the amplifier input and amplifier output to integrate the amplifier output current and provide a voltage output signal indicating the magnetic field sensed by the fluxgate sensor.
Abstract translation: 提出了紧凑型低功率磁通门磁传感器读出电路和装置，其中解调器或整流器电路用于调制来自磁通门检测线圈的感测信号，并且将解调信号提供给具有跨导或其它放大器的放大器电路以及一个或多个 反馈电容器连接在放大器输入和放大器输出之间，以集成放大器输出电流，并提供指示磁通门传感器感测到的磁场的电压输出信号。
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