Methods and appartus for determing cable resistance

    公开(公告)号:AU2017404537A2

    公开(公告)日:2019-10-31

    申请号:AU2017404537

    申请日:2017-12-15

    Abstract: In one embodiment, a method is provided. The method comprises: setting a first voltage level provided to a cable; operating a radio, coupled to the cable, with constant power consumption; measuring a first current level provided to the cable; setting a second voltage level provided to the cable; measuring a second current level provided to the cable; and determining a first resistance of the cable using the first and second voltage and current levels.

    METHODS AND APPARTUS FOR DETERMING CABLE RESISTANCE

    公开(公告)号:CA3053385A1

    公开(公告)日:2018-09-20

    申请号:CA3053385

    申请日:2017-12-15

    Abstract: In one embodiment, a method is provided. The method comprises: setting a first voltage level provided to a cable; operating a radio, coupled to the cable, with constant power consumption; measuring a first current level provided to the cable; setting a second voltage level provided to the cable; measuring a second current level provided to the cable; and determining a first resistance of the cable using the first and second voltage and current levels.

    POWER SOURCE SELECTION
    5.
    发明专利

    公开(公告)号:CA3045450A1

    公开(公告)日:2018-06-28

    申请号:CA3045450

    申请日:2017-11-30

    Inventor: COLEMAN DARYL A

    Abstract: A circuit for selecting between a primary power source and a back-up power source is provided in one embodiment. The circuit includes a first port configured to be coupled to a primary power source, a second port configured to be coupled to a back-up power source, a third port configured to be coupled to provide power to a load. The circuit also includes first and second power field effect transistors (FET) coupled between the second port and the third port, a third power FET coupled between the first port and the third port, and a dual ideal diode-OR controller coupled between the second and third power FETs to selectively turn on and off the second and third power FETs. The circuit further includes an opto-isolator coupled to a control input of the first power FET and a controller, coupled to the opto-isolator, that selectively turns on and off the opto-isolator.

    Methods and appartus for determing cable resistance

    公开(公告)号:AU2017404537A1

    公开(公告)日:2019-08-29

    申请号:AU2017404537

    申请日:2017-12-15

    Abstract: In one embodiment, a method is provided. The method comprises: setting a first voltage level provided to a cable; operating a radio, coupled to the cable, with constant power consumption; measuring a first current level provided to the cable; setting a second voltage level provided to the cable; measuring a second current level provided to the cable; and determining a first resistance of the cable using the first and second voltage and current levels.

    Power source selection
    8.
    发明专利

    公开(公告)号:AU2017378626A1

    公开(公告)日:2019-06-13

    申请号:AU2017378626

    申请日:2017-11-30

    Inventor: COLEMAN DARYL A

    Abstract: A circuit for selecting between a primary power source and a back-up power source is provided in one embodiment. The circuit includes a first port configured to be coupled to a primary power source, a second port configured to be coupled to a back-up power source, a third port configured to be coupled to provide power to a load. The circuit also includes first and second power field effect transistors (FET) coupled between the second port and the third port, a third power FET coupled between the first port and the third port, and a dual ideal diode-OR controller coupled between the second and third power FETs to selectively turn on and off the second and third power FETs. The circuit further includes an opto-isolator coupled to a control input of the first power FET and a controller, coupled to the opto-isolator, that selectively turns on and off the opto-isolator.

Patent Agency Ranking