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公开(公告)号：US11705717B2
公开(公告)日：2023-07-18
申请号：US16853708
申请日：2020-04-20
发明人： Chunyong Wu , Yang Liu , Lei Shen , Shusen Hao
CPC分类号： H02H3/335 , G01R31/50 , H02H1/0007 , H02H3/044 , H02H3/162
摘要： A ground fault circuit interrupter is provided, including a main control chip, a tripping unit and a self-test detection unit, wherein the tripping unit is connected with the self-test detection unit at a detection point and coupled with a load circuit; the self-test detection unit is coupled with the main control chip, and configured to detect a signal at the detection point and output the signal to the main control chip; the main control chip is coupled with the self-test detection unit, and configured to in a self-test state, simulate a circuit fault, perform self-test, and determine whether the circuit fault could be detected and an alarm signal response to the circuit fault is generated, based on the signal. A self-test function and alarm function response to a circuit fault in a ground fault circuit interrupter can be tested during a final test of production.
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12.发明授权公开(公告)号：US11650260B2
公开(公告)日：2023-05-16
申请号：US17224340
申请日：2021-04-07
IPC分类号： G01R31/385 , G01R31/3842 , H01M10/44 , H01M10/42 , H02J7/00 , G01R31/50 , G01R31/388
CPC分类号： G01R31/3865 , G01R31/3842 , G01R31/50 , H01M10/4285 , H01M10/44 , H02J7/0069 , G01R31/388
摘要： A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.
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公开(公告)号：US20230100592A1
公开(公告)日：2023-03-30
申请号：US17953726
申请日：2022-09-27
申请人： Carrier Corporation
发明人： Frank Trotto
摘要： A system and method for performing a self-testing a piezo sounder using a feedback pin while being driven by an ultra-sonic frequency. A method includes operating a sounder device in a test mode, the sounder device is operated in an inaudible frequency range during the test mode and detecting a feedback response voltage. The method includes comparing the feedback response voltage to a reference voltage and providing an indication of a failure mode based at least in part on the feedback response voltage.
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公开(公告)号：US20230100522A1
公开(公告)日：2023-03-30
申请号：US18060698
申请日：2022-12-01
IPC分类号： G01R31/327 , G06F11/22 , G01R31/52 , G01R31/54 , G01R31/50
摘要： A testing device including a main housing, and a probe housing, wherein the probe housing is rotatably coupled to the main housing. The testing device further includes a first test probe and a second test probe. The first test probe may be configured to be inserted into an alternating-current receptacle. The second test probe is coupled to the probe housing. The second test probe may be configured to be inserted into a universal serial bus receptacle.
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公开(公告)号：US20230083816A1
公开(公告)日：2023-03-16
申请号：US17475227
申请日：2021-09-14
摘要： In accordance with at least one aspect of this disclosure, a controller for an aircraft electrical system includes, a software safe module. In embodiments, the software safe module can be configured to determine whether there was a sudden power failure upon controller initialization, and cause operation of the controller in a software safe mode if there was a sudden power failure such that manual intervention is required to leave the software safe mode to prevent repetitive power failure of the controller.
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公开(公告)号：US20230065134A1
公开(公告)日：2023-03-02
申请号：US17406935
申请日：2021-08-19
申请人： Nvidia Corporation
发明人： Ryan Albright , William Andrew Mecham , Benjamin Goska , Aaron Richard Carkin , William Ryan Weese , Michael Thompson
摘要： Systems and methods for data center operational monitoring are disclosed. In at least one embodiment, one or more automated cable repair units to be directed toward a cable failure to identify a cable associated with the cable failure and to determine a corrective active to repair the cable failure.
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公开(公告)号：US20230006605A1
公开(公告)日：2023-01-05
申请号：US17940743
申请日：2022-09-08
发明人： Chunbao Zeng , Peizai Hong , Wen Wei , Zhenhuang Lin , Kailong Chen
摘要： A ground-fault detecting device includes: a first detecting module, having a first input terminal, a second input terminal, and a third input terminal coupled to a first-phase electric power, a second-phase electric power, and a third-phase electric power on an AC side of a photovoltaic power generating system respectively, for sampling voltages of the first-phase electric power, the second-phase electric power, and the third-phase electric power to generate a first sampled voltage, a second sampled voltage, and a third sampled voltage respectively; and a controller, coupled to the first detecting module, for determining if a ground-fault occurs in the AC side before the photovoltaic power generating system is connected to a grid according to the first sampled voltage, the second sampled voltage, and the third sampled voltage; wherein the controller generates an alarm signal when the ground-fault occurs in the AC side.
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公开(公告)号：US11495920B2
公开(公告)日：2022-11-08
申请号：US17193458
申请日：2021-03-05
申请人： Hubbell Incorporated
发明人： Shadi Alex AbuGhazaleh , Matthew Samojeden , Ryan Papageorge , Thomas Scanzillo , Michael Williams
IPC分类号： H01R13/66 , G01R19/165 , H01R43/00 , G01R1/04 , G01R19/25 , G01R31/50 , H01R103/00 , H01R24/22
摘要： An electrical power system including an electrical power connector, a contact configured to electrically connect a power supply to a load, a first sensor configured to sense a first characteristic of the electrical power connector, a second sensor configured to sense a second characteristic of the electrical power connector, and an electronic controller. The electronic controller configured to receive a first signal indicative of the first characteristic, receive a second signal indicative of the second characteristic, compare the first signal to a first threshold, compare the second signal to a second threshold, and dynamically adjust at least one selected from a group consisting of the first threshold and the second threshold. Wherein the dynamic adjustment is based on at least one selected from a group consisting of a measured or calculated parameter, an installation condition, an operational limit, a known operational behavior, and parameter threshold information.
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19.发明授权公开(公告)号：US11462777B2
公开(公告)日：2022-10-04
申请号：US16651057
申请日：2017-10-04
IPC分类号： H02J7/00 , G01R31/396 , H01M10/48 , G01R31/3842 , G01R31/50
摘要： The inspection device includes a charging unit and an inspection unit, and detects the connection anomaly by retrieving a first cell voltage at the early stage of start of the constant-current charging and a second cell voltage at a stage where the charging has progressed to determine deviations from the average value of all the cell groups.
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公开(公告)号：US20220299556A1
公开(公告)日：2022-09-22
申请号：US17835529
申请日：2022-06-08
发明人： Larry Wolcott , John Heslip , Michael O'Dell , Thomas Bach
摘要： Systems, apparatuses, and methods are described for operating and maintaining a data network, and for detecting problems such as signal leakage. In one implementation, a computing device may determine, based on availability and location, one or more mobile devices and may cause the mobile devices to detect a wireless signal. The detected wireless signal may be identified as having leaked from a network, such as a wired network, and used to detect the source of leaks.
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