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公开(公告)号：US20180292504A1
公开(公告)日：2018-10-11
申请号：US15484869
申请日：2017-04-11
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Harold J. Reyes
IPC: G01R35/00 , G01R1/36 , G01R19/00 , G01R19/165
CPC classification number: G01R35/005 , G01R1/36 , G01R19/0084 , G01R19/1659 , G01R35/00
Abstract: A voltage monitor system includes a voltage rail. A voltage monitor is operatively connected to the voltage rail to monitor voltage of the voltage rail with at least one input connection. A self-test module is operatively connected to the voltage rail to perturb voltage at the at least one input connection of the voltage monitor for testing the voltage monitor.
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公开(公告)号：US11360133B2
公开(公告)日：2022-06-14
申请号：US16722257
申请日：2019-12-20
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Gary L. Hess
Abstract: Systems, methods, and computer program products for sinusoidal nulling are provided. Aspects include transmitting, by a controller, an excitation signal to a first sensor, determining, by the controller, a target harmonic based at least on one or more characteristics of the excitation signal, receiving a return signal from the first sensor, sampling the return signal at a first sample rate based on the target harmonic, and adjusting a phase of the sampled return signal to null the target harmonic amplitude to form an adjusted return signal.
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公开(公告)号：US11353496B2
公开(公告)日：2022-06-07
申请号：US16406522
申请日：2019-05-08
Applicant: Hamilton Sundstrand Corporation
Inventor： Kevin C. Peterson , Michael A. Wilson
IPC: G01R31/28
Abstract: A method is provided for testing discrete output signals of a device-under-test (DUT). The method includes receiving an electrical quantity at each conductive path of a plurality of conductive paths that are each coupled to respective discrete output signals of the DUT in one-to-one correspondence. The method further includes controlling application of the electrical quantity to each of the conductive path independent of application of the electrical quantity along the other conductive paths, so that a the electrical quantity is applied simultaneously to all of the conductive paths, the electrical quantity applied to each conductive path being toggled at a unique frequency having a unique period. Accordingly, a characteristic of the electrical quantity at each of the respective test output conductors over the duration of the longest period of the unique periods is indicative of any disturbance between the discrete output signals associated with the test output conductor and all of the other discrete output signals.
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公开(公告)号：US11128132B2
公开(公告)日：2021-09-21
申请号：US16800305
申请日：2020-02-25
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Steven A. Avritch
Abstract: A system includes a first input line for a first voltage source, wherein the first input line is connected to a first output. A second input line is included for a second voltage source, wherein the second input line is connected to a second output and is in parallel with the first input line. A first series pass element is connected in series with the first input line, and a second series pass element is connected in series with the second input line. A controller is operatively connected to the first series pass element and to the second series pass element to throttle at least one of the first series pass element and the second series pass element to balance output current in the first and second outputs.
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公开(公告)号：US20210265836A1
公开(公告)日：2021-08-26
申请号：US16800305
申请日：2020-02-25
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Steven A. Avritch
Abstract: A system includes a first input line for a first voltage source, wherein the first input line is connected to a first output. A second input line is included for a second voltage source, wherein the second input line is connected to a second output and is in parallel with the first input line. A first series pass element is connected in series with the first input line, and a second series pass element is connected in series with the second input line. A controller is operatively connected to the first series pass element and to the second series pass element to throttle at least one of the first series pass element and the second series pass element to balance output current in the first and second outputs.
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Patent Agency Ranking
公开(公告)号：US20210263543A1
公开(公告)日：2021-08-26
申请号：US17175583
申请日：2021-02-12
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Steven A. Avritch , Gary L. Hess
Abstract: A system comprises a first current balancer and a second current balancer. Each of the first and second current balancers includes a first input line for a first voltage source connected to a first output, a second input line for a second voltage source connected to a second output and is in parallel with the first input line, a first series pass element connected in series with the first input line, and a second series pass element connected in series with the second input line. The system further includes a controller operatively connected to the first series pass element and to the second series pass element to throttle at least one of the first series pass element and the second series pass element to balance output current in the first and second outputs.
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公开(公告)号：US20200225063A1
公开(公告)日：2020-07-16
申请号：US16246956
申请日：2019-01-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess , Michael A. Wilson
IPC: G01D5/243
Abstract: A system for determining a phase angle of a sensor waveform relative to an excitation waveform includes a controller that provides an excitation signal having an excitation frequency and a sample signal having four times the excitation frequency. An exciter provides a sinusoidal excitation waveform at the excitation frequency to a primary winding, thereby inducing a sensor waveform in a secondary winding. An analog-to-digital converter (ADC) measures a first and second voltage of the sensor waveform separated in time by the period of the sample frequency, and a wrap-around ADC measures a first and second voltage of the sinusoidal excitation waveform. The first voltage measurements are made at the same time, and the second voltage measurements are made at the same time. The system calculates the phase angle based on the first voltage measurements and the second voltage measurements.
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公开(公告)号：US20200225062A1
公开(公告)日：2020-07-16
申请号：US16246918
申请日：2019-01-14
Applicant: Hamilton Sundstrand Corporation
Inventor： Gary L. Hess , Michael A. Wilson
Abstract: A system for determining an amplitude of a sinusoidal output waveform from a sensor includes a controller configured to provide a sample signal having a sample frequency that is four times a frequency of a sinusoidal excitation waveform provided to the sensor. The sensor has inductively-coupled primary and secondary windings that produce the sinusoidal output waveform from the secondary winding when the excitation waveform is provided to the primary winding. An analog-to-digital converter measures a first and second voltage of the sensor waveform separated in time by the period of the sample frequency, and the system calculates the amplitude based on the measurements of the first and second voltages.
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公开(公告)号：US10672549B2
公开(公告)日：2020-06-02
申请号：US15654377
申请日：2017-07-19
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Eduardo Ahuactzin Parra
IPC: H01F7/06 , H01H47/32 , H03K17/18 , H03K17/082 , H03K19/0175 , G05F1/10
Abstract: A solenoid electrical diagnostic system includes a solenoid circuit operable in response to an electrical current. A low-side switch includes a low-side input configured to receive a pulsed voltage signal and a low-side output in signal communication with the solenoid circuit. The low-side switch continuously switches between an on-state and an off-state based on the pulsed voltage signal to adjust a level of the current flowing through the solenoid circuit. A solenoid monitoring unit generates a low-side output state signal based on an output voltage at the low-side output, and a low-side input state signal based on an input voltage at the low-side input. The solenoid electrical diagnostic system further includes an electronic hardware controller determines at least one operating condition of the solenoid circuit based on a comparison between the state signals and a threshold value.
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公开(公告)号：US10254376B2
公开(公告)日：2019-04-09
申请号：US15484869
申请日：2017-04-11
Applicant: Hamilton Sundstrand Corporation
Inventor： Michael A. Wilson , Harold J. Reyes
IPC: G01R1/36 , G01R35/00 , G01R19/00 , G01R19/165
Abstract: A voltage monitor system includes a voltage rail. A voltage monitor is operatively connected to the voltage rail to monitor voltage of the voltage rail with at least one input connection. A self-test module is operatively connected to the voltage rail to perturb voltage at the at least one input connection of the voltage monitor for testing the voltage monitor.
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