DC voltage detector isolation circuit

    公开(公告)号:US11489447B2

    公开(公告)日:2022-11-01

    申请号:US16398500

    申请日:2019-04-30

    申请人: Panduit Corp.

    IPC分类号: H02M3/335

    摘要: In one embodiment, a power supply circuit has a power source, an inductor in series with a switching transistor connected to the power source, a pair of isolation capacitors connected across the switching transistor, a load connected to the isolation capacitors such that they isolate the load from low frequency energy from the power source, and a resonance circuit configured to amplify resonant ringing connected at least one of in parallel to the inductor or in parallel to the switching transistor.

    CONNECTIVITY VERIFICATION FOR AN ABSENCE OF VOLTAGE TESTER SYSTEM

    公开(公告)号:US20220236306A1

    公开(公告)日:2022-07-28

    申请号:US17381388

    申请日:2021-07-21

    申请人: Panduit Corp.

    IPC分类号: G01R19/155 G01R31/327

    摘要: A permanently installed absence of voltage tester (AVT) may include a connectivity verification system for verifying the connectivity of system cable leads to the main power lines in electrical equipment. An installed AVT may indicate whether the electrical equipment is in an electrically safe state without first requiring direct access to the equipment. One step in the AVT test procedure may include connectivity verification by the connectivity verification system, which may include a sub-procedure to confirm that the installed AVT is directly coupled as intended with direct connection to the equipment being monitored. The connectivity verification system may validate that the AVT is measuring the actual voltage on the power lines of the electrical equipment and has not registered a no-voltage condition due to an unknown disconnection error or installation failure.

    Absence of voltage detection device

    公开(公告)号:US11946954B2

    公开(公告)日:2024-04-02

    申请号:US17564568

    申请日:2021-12-29

    申请人: Panduit Corp.

    IPC分类号: G01R15/26 G01R19/155

    CPC分类号: G01R15/26 G01R19/155

    摘要: A system and method for detecting the connectivity of an absence of voltage detector to the source of power to be detected has a first terminal wire connected to a first terminal and a second terminal wire also connected to the first terminal. An RF signal is placed on the first terminal and then its presence is detected on the second signal wire. This method and system can also be placed on each phase of a three phase system.

    DC voltage detector isolation circuit

    公开(公告)号:US11682976B2

    公开(公告)日:2023-06-20

    申请号:US17977472

    申请日:2022-10-31

    申请人: Panduit Corp.

    IPC分类号: H02M3/335

    CPC分类号: H02M3/33523

    摘要: In one embodiment, a power supply circuit has a power source, an inductor in series with a switching transistor connected to the power source, a pair of isolation capacitors connected across the switching transistor, a load connected to the isolation capacitors such that they isolate the load from low frequency energy from the power source, and a resonance circuit configured to amplify resonant ringing connected at least one of in parallel to the inductor or in parallel to the switching transistor.

    Absence of Voltage Detection Device

    公开(公告)号:US20220120790A1

    公开(公告)日:2022-04-21

    申请号:US17564568

    申请日:2021-12-29

    申请人: Panduit Corp.

    IPC分类号: G01R15/26 G01R19/155

    摘要: A system and method for detecting the connectivity of an absence of voltage detector to the source of power to be detected has a first terminal wire connected to a first terminal and a second terminal wire also connected to the first terminal. An RF signal is placed on the first terminal and then its presence is detected on the second signal wire. This method and system can also be placed on each phase of a three phase system.

    Absence of voltage detection device

    公开(公告)号:US11215646B2

    公开(公告)日:2022-01-04

    申请号:US16847903

    申请日:2020-04-14

    申请人: Panduit Corp.

    摘要: A system and method for detecting the connectivity of an absence of voltage detector to the source of power to be detected has a first terminal wire connected to a first terminal and a second terminal wire also connected to the first terminal. An RF signal is placed on the first terminal and then its presence is detected on the second signal wire. This method and system can also be placed on each phase of a three phase system.

    Absence of Voltage Detection Device
    9.
    发明申请

    公开(公告)号:US20200348343A1

    公开(公告)日:2020-11-05

    申请号:US16847903

    申请日:2020-04-14

    申请人: Panduit Corp.

    IPC分类号: G01R15/26 G01R19/155

    摘要: A system and method for detecting the connectivity of an absence of voltage detector to the source of power to be detected has a first terminal wire connected to a first terminal and a second terminal wire also connected to the first terminal. An RF signal is placed on the first terminal and then its presence is detected on the second signal wire. This method and system can also be placed on each phase of a three phase system.