Single phase input detection and power source protection

    公开(公告)号:US11498147B2

    公开(公告)日:2022-11-15

    申请号:US15968464

    申请日:2018-05-01

    Abstract: A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether single phase AC power or three-phase AC power is connected to the input of welding-type power supply. Single phase input power may be detected by sampling ripple voltage of the DC power, either synchronously with the AC input power or synchronously with a signal generated by an output of the welding-type power supply.

    SINGLE PHASE INPUT DETECTION AND POWER SOURCE PROTECTION

    公开(公告)号:US20230226633A1

    公开(公告)日:2023-07-20

    申请号:US17986410

    申请日:2022-11-14

    CPC classification number: B23K9/1062

    Abstract: A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether single phase AC power or three-phase AC power is connected to the input of welding-type power supply. Single phase input power may be detected by sampling ripple voltage of the DC power, either synchronously with the AC input power or synchronously with a signal generated by an output of the welding-type power supply.

    SINGLE PHASE INPUT DETECTION AND POWER SOURCE PROTECTION

    公开(公告)号:US20190337081A1

    公开(公告)日:2019-11-07

    申请号:US15968464

    申请日:2018-05-01

    Abstract: A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether single phase AC power or three-phase AC power is connected to the input of welding-type power supply. Single phase input power may be detected by sampling ripple voltage of the DC power, either synchronously with the AC input power or synchronously with a signal generated by an output of the welding-type power supply.

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