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公开(公告)号：US20220137146A1
公开(公告)日：2022-05-05
申请号：US17463998
申请日：2021-09-01
Inventor： Emmanuel MARCHAIS
IPC: G01R31/389 , G01R31/36 , G01R31/367 , G01R31/392 , H02J7/00 , G01R31/382
Abstract: A method for estimating parameters of a battery impedance model that models an output impedance of a battery may include dividing the battery impedance model into a plurality of separate impedance stages, wherein each separate impedance stage approximates the battery impedance model within a particular frequency range, the respective impedance in each separate impedance stage comprises a primary impedance model with a primary set of defining impedance parameters and a secondary impedance model with a secondary set of impedance parameters, and the battery impedance model is defined by a series connection of the respective primary impedance models of the plurality of impedance stages. The method may also include monitoring operation of the battery to determine the primary set of defining impedance parameters and the secondary set of impedance parameters.
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公开(公告)号：US20180041173A1
公开(公告)日：2018-02-08
申请号：US15661446
申请日：2017-07-27
Inventor： Emmanuel MARCHAIS , Lingli ZHANG , Eric J. KING , Christian LARSEN
CPC classification number: H03F1/32 , H03F3/187 , H03F3/2175 , H03F2200/165 , H03F2200/351
Abstract: In accordance with embodiments of the present disclosure, a system may have a configurable control loop technology, wherein the system comprises a first mode control loop, a second mode control loop and a reconfigurable pulse width modulator (PWM) configured to generate an output signal from an input signal. The reconfigurable PWM may include a digital PWM and an analog PWM and may be configured such that when the first mode control loop is activated, the reconfigurable PWM utilizes the analog PWM to generate the output signal from the input signal and when the second mode control loop is activated, the reconfigurable PWM utilizes the digital PWM to generate the output signal from the input signal and the digital PWM receives its input from a digital proportional integral derivative controller.
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公开(公告)号：US20220137143A1
公开(公告)日：2022-05-05
申请号：US17463980
申请日：2021-09-01
Inventor： John L. MELANSON , Emmanuel MARCHAIS , Eric J. KING , James T. NOHRDEN
IPC: G01R31/382 , G01R31/36 , G01R31/367 , G01R31/392 , H02J7/00 , G01R31/389
Abstract: A method of management of a battery that powers a component of a device may include monitoring a terminal voltage and a terminal current of the battery under a load that is drawing a current on the battery to provide power to a component of the device and modeling the battery as a battery model that approximates a relationship between the monitored terminal voltage and terminal current over at least one of: a certain frequency range; a certain duration, a certain amplitude range, an applied load, a set of conditions of the battery, and a set of conditions of the load. The relationship between the terminal voltage and the terminal current may have a frequency-dependent characteristic including at least two time constants. The two time constants may represent a time-varying relationship between an input and output of the battery model.
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公开(公告)号：US20200320834A1
公开(公告)日：2020-10-08
申请号：US16906576
申请日：2020-06-19
Inventor： Emmanuel MARCHAIS , Eric LINDEMANN , Carl L. STÅHL
Abstract: A method for identifying a mechanical impedance of an electromagnetic load may include generating a waveform signal for driving an electromagnetic load, the waveform signal comprising a first tone at a first driving frequency and a second tone at a second driving frequency. The method may also include during driving of the electromagnetic load by the waveform signal or a signal derived therefrom, receiving a current signal representative of a current associated with the electromagnetic load and a back electromotive force signal representative of a back electromotive force associated with the electromagnetic load. The method may further include determining amplitude and phase information of the current signal responsive to the first tone and second tone, determining amplitude and phase information of the back electromotive force signal responsive to the first tone and second tone, and identifying parameters of the mechanical impedance of the electromagnetic load based on the amplitude and phase information of the current signal and the amplitude and phase information of the back electromotive force signal.
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公开(公告)号：US20200313529A1
公开(公告)日：2020-10-01
申请号：US16816833
申请日：2020-03-12
Inventor： Eric LINDEMANN , John L. MELANSON , Emmanuel MARCHAIS , Carl Lennart STÅHL
Abstract: A system for estimating parameters of an electromagnetic load may include an input for receiving an input excitation signal to the electromagnetic load, a broadband content estimator that identifies at least one portion of the input excitation signal having broadband content, and a parameter estimator that uses the at least one portion of the input excitation signal to estimate and output one or more parameters of the electromagnetic load.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20230030780A1
公开(公告)日：2023-02-02
申请号：US17961011
申请日：2022-10-06
Inventor： Emmanuel MARCHAIS , Pablo PESO PARADA , Eric LINDEMANN
Abstract: A method for identifying a mechanical impedance of an electromagnetic load may include generating a waveform signal for driving an electromagnetic load and, during driving of the electromagnetic load by the waveform signal or a signal derived therefrom, receiving a current signal representative of a current associated with the electromagnetic load and a back electromotive force signal representative of a back electromotive force associated with the electromagnetic load. The method may also include implementing an adaptive filter to identify parameters of the mechanical impedance of the electromagnetic load, wherein an input of a coefficient control for adapting coefficients of the adaptive filter is a first signal derived from the back electromotive force signal and a target of the coefficient control for adapting coefficients of the adaptive filter is a second signal derived from the current signal.
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公开(公告)号：US20220320999A1
公开(公告)日：2022-10-06
申请号：US17220641
申请日：2021-04-01
Inventor： Emmanuel MARCHAIS , Ross C. MORGAN , Ivan PERRY , Eric J. KING
Abstract: A power delivery system may include an inductive power converter comprising a shared connection to a shared voltage from a battery, multiple inductive phases, each of the multiple inductive phases configured to generate a respective voltage from the shared voltage, multiple regulated voltage connections, and one or more switches configured and arranged to selectively assign at least one of the multiple inductive phases to a regulated voltage connection selected from the multiple regulated voltage connections.
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公开(公告)号：US20200348249A1
公开(公告)日：2020-11-05
申请号：US16842482
申请日：2020-04-07
Inventor： Emmanuel MARCHAIS , Carl Lennart STÅHL , Eric LINDEMANN , Jason W. LAWRENCE , Dayong ZHOU
Abstract: A method for determining a direct current impedance of a transducer may include receiving an input signal indicative of an electrical power consumed by the transducer and calculating, by a thermal model of the transducer, the direct current impedance based on the electrical power.
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公开(公告)号：US20200314969A1
公开(公告)日：2020-10-01
申请号：US16556849
申请日：2019-08-30
Inventor： Emmanuel MARCHAIS , Zhong You
Abstract: A resonant frequency tracker for driving an electromagnetic load with a driving signal may include a signal generator configured to generate a waveform signal at a driving frequency for driving an electromagnetic load and control circuitry. The control circuitry may be configured to, during driving of the electromagnetic load by the waveform signal or a signal derived therefrom, receive a current signal representative of a current associated with the electromagnetic load and a second signal representative of a second quantity associated with the electromagnetic load, the second quantity comprising one of a voltage associated with the electromagnetic load or a back electromotive force of the electromagnetic load. The control circuitry may be further configured to calculate a phase difference between the current signal and the second signal, determine a frequency error of the waveform signal based on the phase difference, and control the driving frequency based on the frequency error.
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公开(公告)号：US20240413726A1
公开(公告)日：2024-12-12
申请号：US18807608
申请日：2024-08-16
Inventor： Eric LINDEMANN , John L. MELANSON , Emmanuel MARCHAIS , Carl Lennart STÅHL
Abstract: A non-transitory computer readable medium may have stored thereon data encoding a waveform signal for playback, wherein the waveform signal is generated by implementing a discrete time model of a physical electromagnetic load that emulates a virtual electromagnetic load and modifying a raw waveform signal to generate a waveform signal for driving the physical electromagnetic load by modifying the virtual electromagnetic load to have a desired characteristic and applying the discrete time model to the raw waveform signal to generate the waveform signal for driving the physical electromagnetic load.
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