Intelligent electrical switches
    1.
    发明授权

    公开(公告)号:US12113525B2

    公开(公告)日:2024-10-08

    申请号:US17958319

    申请日:2022-09-30

    摘要: An electrical switch comprises a first terminal, a second terminal, a third terminal, a solid-state AC switch connected in an electrical path between the first terminal and the second terminal, and a microcontroller configured to control operation of the solid-state AC switch to control power flow between the first terminal and the second terminal. The microcontroller is configured to communicate with a second electrical switch over a data line that is connected to the third terminal of the electrical switch and to the second electrical switch, to implement multi-way switch control for controlling power to a load. The microcontroller is configured, upon power up, to perform a master/slave self-identification process to determine whether to operate the electrical switch in a master mode or a slave mode, based on sensing a voltage level on the data line that is connected to the third terminal of the electrical switch.

    POWER SUPPLY EQUIPPED WITH BATTERY UNIT
    2.
    发明公开

    公开(公告)号:US20240235182A9

    公开(公告)日:2024-07-11

    申请号:US18546954

    申请日:2022-02-22

    摘要: A fuse element of a SCP is reliably fusion-cut with a simple circuit configuration to interrupt an electric current. In a power supply equipped with a battery unit, a control circuit (7) is configured to control turning on and off of a switch (6) configured to connect the SCP (3) which is connected in series to a battery unit (1) and is configured to interrupt charge and discharge currents in an abnormal state. Battery unit 1 includes battery cells (2) connected in series to one another. The SCP (3) includes fuse element 4 connected in series to an output end of the battery unit (1), and a heater (5) configured to fusion-cut the fuse element (4). The switch (6) includes switching elements (10) each of which has one terminal connected to the heater (5) and another terminal connected to a corresponding one of different-voltage terminals (11) of the battery unit 1. In control circuit (7), a selection circuit (9) is configured to select, according to the voltage detected by the voltage detection circuit (8), a switching element (10) to be turned on, and the switching element (10) which is turned on connects the battery unit (1) to the heater (5) to fusion-cut the fuse element (4).

    Detection of downstream smart devices

    公开(公告)号:US12027854B2

    公开(公告)日:2024-07-02

    申请号:US17977924

    申请日:2022-10-31

    申请人: ROKU, INC.

    IPC分类号: H05B47/10 H01H9/54 H02J13/00

    摘要: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for detecting downstream devices connected to an electrical load controlling device. An example embodiment operates by detecting an association signal from a downstream smart device responsive to a downstream smart device detection signal. The example embodiment further operates by determining whether the downstream smart device is coupled to an electrical terminal of an electrical switching device and configured to receive electricity in response to an actuation of the electrical switching device. If so, the example embodiment further operates by generating a control signal configured to instruct the electrical switching device to prevent a deactuation of the electrical switching device and transmitting the control signal to the electrical switching device.

    POWER CONTACT ELECTRODE SURFACE PLASMA THERAPY

    公开(公告)号:US20230411087A1

    公开(公告)日:2023-12-21

    申请号:US18100116

    申请日:2023-01-23

    摘要: A power contact electrode plasma therapy circuit includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact. A plasma ignition detector is configured to detect an electrical parameter over the switchable contact electrodes indicative of the formation of plasma between the switchable contact electrodes and output a plasma ignition signal based on the electrical parameter as detected. A plasma burn memory is configured to receive and store the plasma ignition signal. A controller circuit is configured to receive from the plasma burn memory the plasma ignition signal, start a time based on receipt of the plasma ignition signal, and upon the timer meeting a time requirement, output a plasma extinguish command. A plasma extinguishing circuit, configured to bypass the pair of terminals upon receiving the trigger signal to extinguish the plasma between the switchable contact electrodes.

    Solid-state circuit breaker trips an air gap actuator and solid-state switching components at the same time or the solid-state switching components with a delay

    公开(公告)号:US11798756B2

    公开(公告)日:2023-10-24

    申请号:US17648204

    申请日:2022-01-18

    发明人: Guang Yang

    IPC分类号: H01H9/54 H02H3/42 H01H71/12

    CPC分类号: H01H9/54 H01H71/123 H02H3/42

    摘要: A solid-state circuit breaker (SSCB) comprises a breaker housing, line-in and line-out terminals and one or more solid state switching components. The SSCB further comprises an air gap disposed between the line-in and line-out terminals and coupled in series with the solid-state switching components to complete a current conducting path when closed. The air gap includes an air gap driving mechanism. The solid-state circuit breaker further comprises an air gap actuator to interact with the air gap driving mechanism. The SSCB further comprises a controller that controls the air gap actuator and is configured to: (a). send a tripping signal to the air gap actuator and the one or more solid state switching components at substantially the same time or (b). send a tripping signal to the air gap actuator a short amount of time earlier than sending the tripping signal to the one or more solid state switching components.

    Switchgear
    8.
    发明授权

    公开(公告)号:US11682885B2

    公开(公告)日:2023-06-20

    申请号:US17344975

    申请日:2021-06-11

    申请人: ABB Schweiz AG

    摘要: A switchgear or control gear includes: a first compartment; at least one removable module; a plurality of main switchgear or control gear components; and a plurality of auxiliary switchgear or control gear components. The plurality of main switchgear or control gear components are sub-divided into a first group of components that have a lifetime greater than a threshold level and a second group of components that have a lifetime less than or equal to the threshold level. The plurality of auxiliary switchgear or control gear components are sub-divided into a first group of components that have a lifetime greater than the threshold level and a second group of components that have a lifetime less than or equal to the threshold level.

    POWER DEVICE FOR CONTINUOUSLY DETECTING ENTRANCE AND EXIT POSITIONS

    公开(公告)号:US20230154696A1

    公开(公告)日:2023-05-18

    申请号:US17916705

    申请日:2021-03-29

    发明人: Young KIM

    IPC分类号: H01H9/54 H01H9/02

    CPC分类号: H01H9/54 H01H9/02

    摘要: The present disclosure relates to a power device for continuously detecting entrance and exit positions, the power device comprising: a cradle having a cradle terminal formed on the rear side; a circuit breaker mechanically and electrically connected to or disconnected from the cradle terminal; and a position detection means which is mounted inside the circuit breaker and detects the position of a body of the circuit breaker in real time.

    POWER SWITCHING CONTROL DEVICE
    10.
    发明申请

    公开(公告)号:US20180358189A1

    公开(公告)日:2018-12-13

    申请号:US15778957

    申请日:2015-12-09

    IPC分类号: H01H9/56 H01H33/59

    CPC分类号: H01H9/563 H01H9/54 H01H33/59

    摘要: A power switching control device includes a unit to measure a power-supply-side voltage of a circuit breaker, a unit to calculate a current that flows through a resistor after a switch is turned on and before a circuit breaking unit is turned on, and to calculate an interelectrode voltage of the circuit breaking unit after the switch is turned on and before the circuit breaking unit is turned on, a unit to determine a target closing time point for the circuit breaking unit so that a target turn-on phase for the circuit breaking unit becomes a phase that is set in accordance with the capacitor, and to output a control signal such that the circuit breaking unit is closed at the target closing time point.