PHASOR MEASUREMENT UNITS, SYNCHROPHASOR SYSTEMS AND METHODS THEREOF

    公开(公告)号:US20230042887A1

    公开(公告)日:2023-02-09

    申请号:US17879639

    申请日:2022-08-02

    Abstract: A phasor measurement unit (PMU) of the present disclosure measures phasor, i.e., magnitude and phase angle of voltage and current, and related data from a specific location on the electrical gird synchronized to a common time source. The time-synchronized phasor is called a synchrophasor. In a system of the present disclosure, a plurality of PMUs transmit the synchrophasors and related data to a phasor data concentrator (PDC), which aggregates and time-aligns the data for real time and post analysis. The PMU of the present disclosure further functions as a power quality meter determining at least one of symmetrical components' phasor, frequency, rate of change of frequency, high-speed digital inputs, analog fundamental power and/or displacement power factor.

    DUAL POLE SWITCH DETECTION CIRCUIT

    公开(公告)号:US20230040641A1

    公开(公告)日:2023-02-09

    申请号:US17965361

    申请日:2022-10-13

    Abstract: A system includes three switches each having a single pole and dual throws. The respective single pole is on a supply side of the each respective switch. The dual throws are on a load side of each respective switch, and include a respective normally open (NO) throw and a respective normally closed (NC) throw. A first voltage detector is connected from the single pole of the first switch to the NC throw of the third switch. A second voltage detector is connected from the single pole of the second switch to the NC throw of the first switch. A third voltage detector is connected from the single pole of the third switch to a NC throw of the second switch.

    Electronic device to perform power management and operating method thereof

    公开(公告)号:US11347253B2

    公开(公告)日:2022-05-31

    申请号:US17022540

    申请日:2020-09-16

    Abstract: An electronic device according to an embodiment may include: a plurality of loads, a processor, and a power management circuit configured to provide the plurality of loads with a power, wherein the power management circuit may include a plurality of regulators configured to adjust a voltage of a power received from a power source and output a voltage-adjusted power, a switching circuit configured to connect at least one of the plurality of regulators to at least one of the plurality of loads, a plurality of power sensors each power sensor being configured to measure a magnitude of a power input to each of the plurality of loads, and a controller. The controller may be configured to obtain information related to an operation of each of the plurality of loads from the processor, obtain the magnitude of the power input to each of the plurality of loads from each of the plurality of power sensors, and identify a load which operates abnormally among the plurality of loads based on the magnitude of the power input to each of the plurality of loads and the information related to the operation of each of the plurality of loads.

    FAILSAFE CIRCUIT, LAYOUT, DEVICE, AND METHOD

    公开(公告)号:US20220164517A1

    公开(公告)日:2022-05-26

    申请号:US17667478

    申请日:2022-02-08

    Abstract: A circuit includes a reference node having a reference voltage level, a first node that carries an input signal having a first voltage level or the reference voltage level, a second node that carries a power supply voltage, a voltage regulator including a source follower that outputs a gate signal having a fractional value of the input signal, a first control circuit that selects the higher of the power supply voltage or the gate signal as a first control signal, a second control circuit that selects the higher of the input signal or the first control signal as a second control signal, and first and second transistors coupled in series between the first node and the reference node and configured to receive the first and second control signals.

    Dynamic tracking regulator to protect radiation-hardened devices

    公开(公告)号:US11209849B1

    公开(公告)日:2021-12-28

    申请号:US16563023

    申请日:2019-09-06

    Abstract: A circuit includes a regulation module having a threshold input to receive a clamp threshold voltage and a feedback input to monitor a swing-limited output voltage. The regulation module generates a difference signal that indicates a difference between the clamp threshold voltage and the swing-limited output voltage. A current compensation module includes a clamp port and an input port. The clamp port to controls the swing-limited output voltage and the input port receives the difference signal. The clamp port generates an adjustment current to control the swing-limited output voltage based on the difference signal. An adjustment network receives an input voltage and the adjustment current from the clamp port. The adjustment current to generate a voltage across the adjustment network such that the swing-limited output voltage at the clamp port is adjusted within a voltage range of the input voltage.

    FUNCTIONAL ENHANCEMENT MODULE FOR AIRCRAFT

    公开(公告)号:US20210263546A1

    公开(公告)日:2021-08-26

    申请号:US17254878

    申请日:2019-06-27

    Abstract: A functional enhancement module is for vehicles and for enhancing a functional module which is supplied with electric power via a power supply bus. The functional enhancement module is configured to be supplied with the electric power via the power supply bus. The functional enhancement module includes: a controller having a power specification for a maximum power flow of the functional module and being configured to detect a current power flow at a reference point; and a power controller configured to control a power take-up of the functional enhancement module. The controller is configured to control the power controller in accordance with the detected power flow, such that a combined power take-up of the functional module and the functional enhancement module does not exceed the power specification.

    POWER SUPPLY AND POWER SYSTEM
    9.
    发明申请

    公开(公告)号:US20210014783A1

    公开(公告)日:2021-01-14

    申请号:US17034180

    申请日:2020-09-28

    Abstract: This application discloses a power supply and a power system. A first power supply is configured to set an output voltage of the first power supply to a plurality of voltage values. A second power supply is configured to send a plurality of first parameters to the first power supply, where the first parameters are used to identify power efficiency of the second power supply. The first power supply is further configured to obtain a plurality of second parameters, which are used to identify power efficiency of the first power supply. The first power supply is further configured to determine, based on the plurality of first parameters and the plurality of second parameters, maximum power efficiency of the power system and a voltage value corresponding to the maximum power efficiency.

    Countermeasure For Power Injection Security Attack

    公开(公告)号:US20200382272A1

    公开(公告)日:2020-12-03

    申请号:US16998328

    申请日:2020-08-20

    Abstract: A system and method for determining whether a cryptographic system is being observed for power consumption analysis in an attempt to decipher secret keys. The system comprises a first external connection to receive an input voltage, an internal voltage regulator with an external capacitor to produce the desired voltage for the cryptographic system. The internal voltage regulator typically includes a switch that passes current from the first external connection to the external capacitor. By monitoring the frequency at which the switch is activated, it is possible to detect that an external voltage is being applied to the external capacitor. This external voltage is typically used to perform SPA or DPA operations. Thus, the cryptographic system may cease performing any encryption or decryption operations if an external voltage is detected.

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