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公开(公告)号：US11662756B2
公开(公告)日：2023-05-30
申请号：US17246817
申请日：2021-05-03
Applicant: Infineon Technologies AG
Inventor： Mario Motz , Umberto Aracri , Alessandro Michelutti
IPC: G05F1/571 , G01K7/01 , G01R19/165 , G05F3/30
CPC classification number: G05F1/571 , G01K7/01 , G01R19/1659 , G01R19/16538 , G05F3/30
Abstract: An integrated circuit includes a first bandgap voltage reference sub-circuit configured to provide a first bandgap reference voltage; a second bandgap voltage reference sub-circuit configured to provide a second bandgap reference voltage; a voltage regulator sub-circuit configured to derive a first supply voltage using the first bandgap reference voltage and a second supply voltage using the second bandgap reference voltage; a bandgap comparator sub-circuit configured to derive a first internal voltage and a second internal voltage from the first supply voltage, wherein the first internal voltage decreases at a higher rate than the second internal voltage with respect to a decreasing first supply voltage, wherein the bandgap comparator sub-circuit is configured indicate which of the first and the second internal voltages is larger; and a comparator sub-circuit configured to indicate whether a difference between the first supply voltage and the second supply voltage is larger than a predefined threshold.
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公开(公告)号：US10830835B2
公开(公告)日：2020-11-10
申请号：US16744882
申请日：2020-01-16
Applicant: Infineon Technologies AG
Inventor： Leneesh Raghavan , Mario Motz
Abstract: Magnetic field sensors and sensing methods are provided. A magnetic sensor includes at least one magnetic field sensor element configured to generate an analog input sensor signal in response to a magnetic field; an inverting amplifier arranged on an analog signal path and configured to generate an analog output sensor signal having a gained value with respect to the analog input sensor signal; a switchable compensation capacitor disposed in a negative feedback path of the inverting amplifier, where the switchable compensation capacitor is configured to control a bandwidth of the analog signal path based on configuration information; and a digital controller configured to receive at least one measurement parameter, generate the configuration information based on the at least one measurement parameter, and transmit the configuration information to the switchable compensation capacitor for adjusting the bandwidth of the analog signal path.
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公开(公告)号：US10481032B2
公开(公告)日：2019-11-19
申请号：US15232432
申请日：2016-08-09
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Mario Motz
Abstract: Embodiments relate to stress compensation in differential sensors. In an embodiment, instead of compensating for stress on each sensor element independently, stress compensation circuitry aims to remove stress-related mismatch between two sensor elements using the sensor elements themselves to detect the mismatch. A circuit can be implemented in embodiments to detect mechanical stress-related mismatch between sensor elements using the sensor elements, and tune the output signal by a compensation factor to eliminate the mismatch. Embodiments are therefore less complicated and less expensive than conventional approaches. While embodiments have applicability to virtually any differential sensor, including magnetic field, pressure, temperature, current and speed, an example embodiment discussed herein relates to magnetic field.
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54.发明授权公开(公告)号：US10438835B2
公开(公告)日：2019-10-08
申请号：US16127713
申请日：2018-09-11
Applicant: Infineon Technologies AG
Inventor： Mario Motz
IPC: H01L21/71 , G05D15/01 , G05F3/02 , G01R27/02 , G01N22/00 , G01R31/28 , H01L23/00 , H01M8/04537 , G05F1/56
Abstract: Stress compensated systems and methods of compensating for electrical and mechanical stress are discussed. One example system can include a first circuit and a global stress compensation component. The first circuit can be configured to generate a first signal and can comprise at least one local stress compensation component (e.g., employing dynamic element matching, chopping, etc.). The global stress compensation component can comprise one or more stress sensors configured to sense one or more stress components associated with the system. The global stress compensation component can be configured to receive the first signal and to compensate for stress effects on the first signal.
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公开(公告)号：US10101379B2
公开(公告)日：2018-10-16
申请号：US15132783
申请日：2016-04-19
Applicant: Infineon Technologies AG
Inventor： Friedrich Rasbornig , Mario Motz , Dirk Hammerschmidt , Ferdinand Gastinger , Bernhard Schaffer , Wolfgang Granig
Abstract: Embodiments relate to systems and methods for sensor self-diagnostics using multiple signal paths. In an embodiment, the sensors are magnetic field sensors, and the systems and/or methods are configured to meet or exceed relevant safety or other industry standards, such as SIL standards. For example, a monolithic integrated circuit sensor system implemented on a single semiconductor ship can include a first sensor device having a first signal path for a first sensor signal on a semiconductor chip; and a second sensor device having a second signal path for a second sensor signal on the semiconductor chip, the second signal path distinct from the first signal path, wherein a comparison of the first signal path signal and the second signal path signal provides a sensor system self-test.
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Patent Agency Ranking
公开(公告)号：US20170322264A1
公开(公告)日：2017-11-09
申请号：US15658564
申请日：2017-07-25
Applicant: Infineon Technologies AG
Inventor： Mario Motz
CPC classification number: G01R33/0023 , G01R33/02
Abstract: A sensor device includes a high voltage circuit, a sensor and a charge storage. The sensor utilizes a low voltage supply. The high voltage circuit includes a blocking device and a regulating device. The blocking device is configured to block negative voltages of the high voltage supply. The regulated device is configured to receive a high voltage supply and generate the low voltage supply from the high voltage supply. The high voltage supply is DC. The charge storage has a vertical capacitor and is configured to maintain the low voltage supply during a power break and to store and maintain charge during non-break periods.
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公开(公告)号：US20170131366A1
公开(公告)日：2017-05-11
申请号：US14935871
申请日：2015-11-09
Applicant: Infineon Technologies AG
Inventor： Mario Motz , Leneesh Raghavan
CPC classification number: G01R33/0029 , G01R33/07
Abstract: A sensor including a sensing device and a processor. The sensing device can be configured to sense one or more environmental conditions, such as one or more magnetic fields, and generate a sensor signal based on the sensed environmental condition(s). The processor can be configured to determine a gain mode and/or a zero-point mode of the sensor. Based on the determined gain and/or zero-point modes and the sensor signal, the processor can generate an output signal. The processor can include a voltage generator configured to generate a ratiometric voltage and/or a regulated voltage based on a supply voltage of the sensor. The processor can receive an external voltage. The gain mode and/or the zero-point mode can be independently determined based on the ratiometric, regulated, or external voltages. The ratiometric or regulated voltage can be output as a second output to form a differential output.
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公开(公告)号：US20170102438A1
公开(公告)日：2017-04-13
申请号：US15261288
申请日：2016-09-09
Applicant: Infineon Technologies AG
Inventor： Mario Motz
CPC classification number: G01R33/0029 , G01R33/075 , H03F3/387 , H03F3/45475 , H03F2200/261 , H03G3/001 , H03G3/3089
Abstract: A device includes an analog main signal path and a digital control circuit. The digital control circuit determines and provides a digital control signal to the analog main signal path to reduce a gain error of the analog main signal path.
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公开(公告)号：US09606603B2
公开(公告)日：2017-03-28
申请号：US14926602
申请日：2015-10-29
Applicant: Infineon Technologies AG
Inventor： Christof Bodner , Theodor Kranz , Mario Motz , Wolfgang Scherr
CPC classification number: G06F1/3206 , G01D5/145 , G06F1/06
Abstract: A digital sensor system includes a sensor element, an analog-to-digital converter coupled to the sensor element, and a wake-up circuit configured to activate the sensor element and the analog-to-digital converter in response to a predefined event.
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公开(公告)号：US20170019103A1
公开(公告)日：2017-01-19
申请号：US15281776
申请日：2016-09-30
Applicant: Infineon Technologies AG
Inventor： Mario Motz
CPC classification number: H03K17/9517 , G01D5/142 , G01P3/489 , G01P13/00 , G01R17/02 , G01R19/0092 , G01R33/0029 , H03K5/2472 , H03K17/94
Abstract: The present disclosure relates to a method and apparatus to perform a low power activation of a system. In one embodiment, the apparatus includes a sensor element configured to output a sensor output signal corresponding to a sensed quantity to a digital difference detection circuit. The digital difference detection circuit has a digital measurement element configured to track the sensor output signal and generate a digital signal therefrom, a digital storage element configured to store previous digital signals corresponding to the sensor output signal generated over time, and a difference detector configured to detect a difference between a current digital signal and at least one of the previous digital signals. If the difference is larger than a digital reference level, the difference detector causes an activation signal generator to generate an activation signal that awakens a system from a sleep mode or a low-power mode.
Abstract translation: 本公开涉及一种执行系统的低功率激活的方法和装置。 在一个实施例中，该装置包括传感器元件，其被配置为将对应于感测量的传感器输出信号输出到数字差分检测电路。 数字差分检测电路具有数字测量元件，其被配置为跟踪传感器输出信号并从其生成数字信号;数字存储元件，被配置为存储与随时间生成的传感器输出信号相对应的先前数字信号;以及差分检测器， 检测当前数字信号与至少一个之前的数字信号之间的差异。 如果差值大于数字参考电平，则差分检测器使激活信号发生器产生唤醒系统从睡眠模式或低功率模式的激活信号。
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