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公开(公告)号：US11177987B1
公开(公告)日：2021-11-16
申请号：US17081433
申请日：2020-10-27
摘要： Processing a resolver signal by a microcontroller includes generating, by a carrier signal generator, a carrier signal for output to a resolver; receiving modulated carrier signals from a resolver via hardware that is external to the microcontroller; integrating, by an integrator, respective integrator input signals which are based on the modulated carrier signals, to generate respective envelope signals, wherein a start of an integration window of the integrator is set with respect to a start of the carrier signal; and determining an angular position sensed by the resolver based on the envelope signals.
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公开(公告)号：US09479149B1
公开(公告)日：2016-10-25
申请号：US14792700
申请日：2015-07-07
IPC分类号： H03K5/12
摘要： An overshoot compensation circuit for an input signal, having a slew rate detection circuit configured to detect a slew rate of the input signal; a run time circuit configured to initialize a predetermined run time when an absolute value of the slew rate of the input signal is greater than or equal to a predetermined threshold; and a low pass filter configured to decrease the slew rate of the input signal only during the predetermined run time.
摘要翻译： 一种用于输入信号的过冲补偿电路，具有被配置为检测输入信号的转换速率的转换速率检测电路; 运行时间电路，被配置为当所述输入信号的转换速率的绝对值大于或等于预定阈值时初始化预定运行时间; 以及低通滤波器，其被配置为仅在预定运行时间期间降低输入信号的转换速率。
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公开(公告)号：US11614485B2
公开(公告)日：2023-03-28
申请号：US17318168
申请日：2021-05-12
发明人： Michael Augustin , Ketan Dewan
IPC分类号： G01R31/3177 , H03M3/00 , H04L43/16 , G01R31/00 , G01R31/08 , H04L1/24 , G06F119/10
摘要： A safety mechanism device includes measuring whether a first output signal or results meets dynamically adjustable boundary criterion. The safety mechanism compares the first output signal with at least one boundary signal that is dynamically adjusted. The safety mechanism can produce a dynamically or automatically adjusted boundary signal using a second output signal. The second output signal can mimic the first output signal.
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公开(公告)号：US20240213898A1
公开(公告)日：2024-06-27
申请号：US18069307
申请日：2022-12-21
摘要： A resolver-to-digital converter, comprising: a feedback (FB) filter chain loop having a state observer configured to estimate a rotation speed and a rotation angle of an object, based on a pair of input sine and cosine signals that are amplitude-modulated (AM) to correspond with the rotation angle of the object; and a feedforward (FF) filter chain path configured to estimate the rotation speed of the object based on the pair of input sine and cosine signals, wherein the state observer of the FB filter chain loop is further configured to offset the estimated rotation speed of the FB filter chain loop with the estimated rotation speed of the FF filter chain path to decrease a settling time of the estimated rotation angle.
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公开(公告)号：US20240142503A1
公开(公告)日：2024-05-02
申请号：US18493866
申请日：2023-10-25
发明人： Wei Wang , Michael Augustin , Jürgen Schäfer , Dietmar König , Josef Niederl , Shane O'Neill
IPC分类号： G01R23/167
CPC分类号： G01R23/167
摘要： According to various embodiments, a circuit for determining the frequency of a signal is described, comprising an input configured to receive an analog input signal, an analog to digital converter configured to convert the analog input signal to a digital input signal, a digital mixer configured to generate a mixing result signal by mixing the digital input signal with a single bit binary signal having a reference frequency, a low pass filter configured to generate a filtered signal by filtering the mixing result signal, a measuring circuit configured to measure the period of the filtered signal and an output configured to output a value differing from the frequency of the single bit binary signal by the inverse of the measured period as the frequency to be determined.
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公开(公告)号：US20210396806A1
公开(公告)日：2021-12-23
申请号：US17318168
申请日：2021-05-12
发明人： Michael Augustin , Ketan Dewan
IPC分类号： G01R31/3177
摘要： A safety mechanism device includes measuring whether a first output signal or results meets dynamically adjustable boundary criterion. The safety mechanism compares the first output signal with at least one boundary signal that is dynamically adjusted. The safety mechanism can produce a dynamically or automatically adjusted boundary signal using a second output signal. The second output signal can mimic the first output signal.
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