Battery pack management system, method thereof and power tool system

    公开(公告)号:US20240348062A1

    公开(公告)日:2024-10-17

    申请号:US18754180

    申请日:2024-06-26

    IPC分类号: H02J7/00

    摘要: The disclosure provides a battery pack management system, which includes a plurality of battery packs for supplying a power to a load, a plurality of battery interfaces, a plurality of switching units, a control assembly and a plurality of communication units. Each of the battery packs is electrically connected in parallel by the battery interfaces. The switching units are electrically connected to the battery interfaces and the battery packs through the battery interfaces are electrically connected to the switching units. The control assembly detects a voltage level of each battery pack and determines the battery packs having a first highest priority level through the voltage level detected. The communication unit is electrically connected to the battery packs and the load, and the switching units is closed by the control assembly through the information for supplying the power to the load by the battery packs having the highest priority level.

    POWER MANAGEMENT UNIT BATTERY SWITCHOVER TOPOLOGY

    公开(公告)号:US20240339846A1

    公开(公告)日:2024-10-10

    申请号:US18131194

    申请日:2023-04-05

    申请人: Raytheon Company

    IPC分类号: H02J7/00 H01M10/65 H02J9/06

    摘要: A power management unit having battery switchover topology including a first battery in operative communication with a first battery first power switch in parallel with a first battery second power switch, and in operative communication with a first battery power dump unit; a second battery in operative communication with a second battery first power switch in parallel with a second battery second power switch, and in operative communication with a second battery power dump unit; an nth battery in operative communication with an nth battery first power switch in parallel with an nth battery second power switch; the first battery, the second battery and the nth battery are connected to a bus that supplies an electrical load; and the electrical load being supplied sequentially by a first battery current from the first battery, a second battery current from the second battery, and an nth battery current from the nth battery.

    Inrush current protection circuit for solid state lighting fixtures

    公开(公告)号:US12108507B2

    公开(公告)日:2024-10-01

    申请号:US17633049

    申请日:2020-08-06

    摘要: An inrush current protection circuit for a solid state lighting fixture is provided. The inrush current protection circuit includes one or more current limiting devices and one or more switching devices coupled in parallel with the one or more current limiting devices. The one or more switching devices are configured in a first state when the solid state lighting fixture draws an inrush current from a power source. The inrush current is provided to the one or more current limiting devices when the one or more switching devices are in the first state. The one or more switching devices are configured in a second state when the solid state lighting fixture draws a steady-state current from the power source. The steady-state current bypasses the one or more current limiting devices when the one or more switching devices are in the second state.

    Device, system, and method of charging a battery for audiovisual equipment

    公开(公告)号:US12095292B2

    公开(公告)日:2024-09-17

    申请号:US18236508

    申请日:2023-08-22

    申请人: Ross Kanarek

    发明人: Ross Kanarek

    IPC分类号: H02J7/00

    摘要: A battery charging apparatus includes a battery charger having a housing and a battery mount plate for charging the battery. A contact block of the battery mount plate includes an electrical terminal configured to provide a charging voltage to the battery. The battery can operate in a first state in which the battery delivers a first delivery voltage or in a second state in which the battery delivers a second and higher delivery voltage. The battery can be charged in the first state or the second state. The battery charger switches the battery between the first state and the second state in which power is provided to the battery through the electrical terminal at the second and higher charging voltage to charge the battery.

    BATTERY PACK
    6.
    发明公开
    BATTERY PACK 审中-公开

    公开(公告)号:US20240275183A1

    公开(公告)日:2024-08-15

    申请号:US18409819

    申请日:2024-01-11

    摘要: A battery pack 1 includes: a first module block 5 and a second module block 6 arranged side-by-side; and a connection switching circuit 7 including a series-connection switching element 8 and parallel-connection switching elements 9 and 10 configured to selectively switch connection between the first and second module blocks between a series connection and a parallel connection. In the connection switching circuit, the series-connection switching element is provided at a midpoint in the series connection and located at an inner side of an area where the module blocks are disposed in the battery pack in a top view of this area, and terminals of the modules in the first and second module blocks 5 and 6 are connected to the connection switching circuit and located close to the connection switching circuit, thereby capable of simplifying the layout of the switching circuit for changing the connection status of the module blocks.

    Energy storage system and method to improve battery performance by battery connection method

    公开(公告)号:US12040638B2

    公开(公告)日:2024-07-16

    申请号:US17213621

    申请日:2021-03-26

    IPC分类号: H02J7/00 H02J7/35

    摘要: Two or more batteries may be in a switching para-series circuit arrangement where a set of batteries are connected, in both parallel and series arrangement in two independent phases, using fast switching devices, where the output to the load is the average voltage based on the duty cycles. Renewable energy power source such as solar panels may be coupled with batteries in parallel connection in a first phase and the same batteries connected in series to the load in a second phase, using transistor switches that, first, enables simultaneous charging and discharging of the batteries, and second, enables voltage shifting from the solar panel, as the additional batteries in series provide the required voltage to the load and where the duty cycles of charging and discharging is adjustable to convert the voltage waveform.

    CHARGING/DISCHARGING CONTROL CIRCUIT
    10.
    发明公开

    公开(公告)号:US20240222994A1

    公开(公告)日:2024-07-04

    申请号:US18185393

    申请日:2023-03-17

    IPC分类号: H02J7/00

    摘要: A charging/discharging control circuit, comprising a first inverter circuit, a second inverter circuit and a driving circuit. The first inverter circuit is configured to generate a first control voltage on a first control node according to a threshold voltage of a first control transistor. The second inverter circuit is configured to generate a second control voltage on a second control node according to a threshold voltage of a second control transistor. The driving circuit is coupled to the first inverter circuit, the second inverter circuit and a load, and is configured to selectively charge or discharge the load according to the first control voltage or the second control voltage.