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公开(公告)号：US11716027B2
公开(公告)日：2023-08-01
申请号：US17456154
申请日：2021-11-22
CPC分类号： H02M3/1584 , G01R19/16538 , G02B27/017 , G05F1/575 , G09G3/3696 , H02M1/0025 , H02M3/071
摘要： A power supply device includes a switching converter, an inductor, and a linear voltage regulator. The inductor is electrically connected between a first switching node and a second switching node of the switching converter. The power supply device is configured such that when the switching converter is in an ON state the inductor is charged with a charging current. The power supply device is further configured such that when the switching converter is in an OFF state, the switching converter modulates an input voltage to generate a positive-bias output voltage at a positive-bias output node, the charging current flows from the inductor such that a negative input voltage is generated at a linear voltage regulator input node, and the linear voltage regulator regulates the negative input voltage to generate a negative-bias output voltage at a negative-bias output node.
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公开(公告)号：US20230228825A1
公开(公告)日：2023-07-20
申请号：US18177206
申请日：2023-03-02
发明人： Jeremy William Blair
IPC分类号： G01R31/64 , G01R19/165 , G01R25/00 , G01R19/10
CPC分类号： G01R31/64 , G01R19/16571 , G01R25/00 , G01R19/10
摘要： Methods and devices are provided for determining whether a phase is faulted or one or more phases are open in capacitor bank system. Detecting open and faulted phases may include determining a neutral current of the capacitor bank system. An open-phase event and a fault event may be distinguished based on a magnitude of a neutral current within a first or a second predetermined range. According to one embodiment, an IED may calculate an aggregate power phasor for the phases of the capacitor bank system with respect to each rotation. According to another detection method, in response to the magnitude of the neutral current being greater than a threshold value, an IED may calculate an individual power phasor for each of the phases of the capacitor bank system with respect to each rotation. Based on the angles of the power phases, the IED may determine which phases may be faulted.
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公开(公告)号：US20230228813A1
公开(公告)日：2023-07-20
申请号：US17989696
申请日：2022-11-18
申请人： MEDIATEK INC.
发明人： Tze-Chien Wang
IPC分类号： G01R31/317 , G01R31/3181 , G01R19/165
CPC分类号： G01R31/31721 , G01R31/31816 , G01R19/16552 , H02M1/325
摘要： The present invention provides a glitch detector including a first inverter, a second inverter, a first capacitor and a second capacitor. The first inverter is connected between a supply voltage and a ground voltage, and is configured to receive a first signal at a first node to generate a second signal to a second node. The second inverter is connected between the supply voltage and the ground voltage, and is configured to receive the second signal at the second node to generate the first signal to the first node. A first electrode of the first capacitor is coupled to the supply voltage, and a second electrode of the first capacitor is coupled to the first node. A first electrode of the second capacitor is coupled to the ground voltage, and a second electrode of the second capacitor is coupled to the second node.
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公开(公告)号：US11695293B2
公开(公告)日：2023-07-04
申请号：US17505473
申请日：2021-10-19
IPC分类号： H02J7/00 , G05F1/59 , H02J1/12 , G01R19/165
CPC分类号： H02J7/007182 , G01R19/16538 , G05F1/59 , H02J1/12 , H02J7/0029 , H02J7/0048 , H02J7/0063
摘要： A power system provides power from a power source to a load via a distribution bus, and includes a DC-DC converter coupled in parallel with a network of switching elements coupled between an output terminal of the power source and the distribution bus. A controller is configured to selectively activate or deactivate the DC-DC converter and each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of operation of the DC-DC converter and a number of the activated or deactivated transistors.
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公开(公告)号：US20230204652A1
公开(公告)日：2023-06-29
申请号：US17646436
申请日：2021-12-29
申请人： Quanta Computer Inc.
发明人： Yangtzu LEE , Wei-Chih CHEN , Pin-Hao HUNG
IPC分类号： G01R31/28 , H05K1/02 , G01R19/165
CPC分类号： G01R31/2812 , H05K1/0298 , G01R19/16576 , H05K2201/10151
摘要： A voltage sensor system for determining an abnormal circuit condition in a multi-layer printed circuit board is disclosed. The printed circuit board has a plurality of layers. One of the layers includes a trace network and a sensor circuit. The sensor circuit includes the trace network and a sensing point. The sensor circuit is coupled between a voltage supply and a ground. A controller is coupled to the sensing point. The controller is operable to determine a voltage of the sensing point and compare the voltage to a threshold value to determine an abnormal circuit condition in the printed circuit board.
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86.发明公开公开(公告)号：US20230204638A1
公开(公告)日：2023-06-29
申请号：US18164238
申请日：2023-02-03
申请人： Sensus Spectrum, LLC
发明人： Andrew Dudding
IPC分类号： G01R22/06 , G01K3/00 , G01R19/165 , G01R15/20
CPC分类号： G01R22/061 , G01K3/005 , G01R19/1659 , G01R15/20
摘要： A system that detects temperature and current events in a power grid is provided. The system includes a magnetic field sensor associated with an electric meter, a first temperature sensor associated with the electric meter, a plurality of bus bars connected to the electric meter and at least one temperature sensor uniquely associated with each of the plurality of bus bars. The system detects a magnetic field and compares the detected magnetic field to an expected magnetic field threshold or magnetic field threshold range to provide a magnetic field comparison result and the system detects a plurality of temperatures and compares the detected plurality of temperatures to expected temperature thresholds or temperature threshold ranges to provide a temperature comparison result. The system determines if a notification should be sent based on the magnetic field comparison result and/or the temperature comparison result.
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公开(公告)号：US20230204636A1
公开(公告)日：2023-06-29
申请号：US18148020
申请日：2022-12-29
发明人： Bruno BOURY , Simon HOUIS , Stephane RAUW , Lionel TOMBEZ , Guido DUPONT , Adrian HILL
IPC分类号： G01R19/165
CPC分类号： G01R19/16571
摘要： The present invention relates to a current sensor device comprising: current sensing means for sensing a current, a circuit arranged to convert a signal received from the current sensing means into a signal indicative of the sensed current, storage means for storing a plurality of values of the signal indicative of the sensed current, a processing circuit arranged for receiving a subset of the plurality of values stored in the storage means, for detecting or predicting an event based on a function of the subset, said function being stored in the storage means, and for generating a corresponding event signal, said current supervisory device further comprising an interface circuit arranged to output the corresponding event signal.
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公开(公告)号：US11689065B2
公开(公告)日：2023-06-27
申请号：US16276717
申请日：2019-02-15
CPC分类号： H02J50/80 , G01R19/16528 , H02J50/10 , H02J50/12 , H02J7/0044 , H02J2310/40 , H04B5/0037
摘要： Systems and methods for supplying power to an electronic device are provided. A first power limit is received from the electronic device at a transmitter. The transmitter input power is set to correspond to the first power limit. The transmitter supplies power corresponding to the transmitter input power to the electronic device to initiate charging, and an electrical value associated with the transmitter input power is monitored. During monitoring, the first electrical value is compared to a predefined second electrical value, the power supply to the receiver is discontinued based on the monitoring, and the transmitter input power is adjusted to correspond to a second power limit based on the comparison.
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公开(公告)号：US11687060B2
公开(公告)日：2023-06-27
申请号：US16905661
申请日：2020-06-18
发明人： William Roy , Vance Willis , Benjamin Corn , James Murdock
IPC分类号： G05B19/416 , G01R19/165 , G01K3/00 , G01L13/00 , G01F1/06 , G01F15/061 , G01L19/08
CPC分类号： G05B19/416 , G01F1/06 , G01F15/061 , G01K3/005 , G01L13/00 , G01L19/086 , G01R19/16571 , G05B2219/37371 , G05B2219/50333
摘要： Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.
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公开(公告)号：US20230194625A1
公开(公告)日：2023-06-22
申请号：US17804709
申请日：2022-05-31
IPC分类号： G01R31/40 , H02M7/217 , G01R19/165
CPC分类号： G01R31/40 , H02M7/217 , G01R19/165
摘要： Multiphase trans-inductor voltage regulator fault diagnostic. One example is a method of detecting electrical faults in a multiphase power converter, the method comprising: driving, by a controller of the multiphase power converter, a first phase of the power converter, the first phase comprising a phase-one transformer module; driving, by the controller, a second phase of the power converter, the second phase comprising a phase-two transformer module distinct from the phase-one transformer module; testing, by the controller of the multiphase power converter, for a phase-one electrical fault associated with the phase-one transformer module; testing, by the controller, for a phase-two electrical fault associated with the phase-two transformer module; and driving, by the controller, a fault indicator in the presence of a phase-one or phase-two electrical fault.
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