Systems and methods to control pulse welding

    公开(公告)号:US11958142B2

    公开(公告)日:2024-04-16

    申请号:US16653488

    申请日:2019-10-15

    CPC classification number: B23K9/092 B23K9/0953 B23K9/1006 B23K9/1062

    Abstract: Systems and methods to control pulse welding are disclosed. An example welding-type system includes: power conversion circuitry configured to convert input power to welding-type power; and control circuitry configured to control the power conversion circuitry to output the welding-type power in a plurality of pulse cycles, each pulse cycle comprising a background phase, a ramp up phase, a peak phase, and a ramp down phase. Controlling the power conversion circuitry involves: during the ramp up phase of the pulse cycles, controlling the power conversion circuitry in a current-controlled mode and switching to controlling the power conversion circuitry in a voltage-controlled mode when a peak transition voltage is reached; and during the ramp down phase of the pulse cycles, controlling the power conversion circuitry in a current-controlled mode and switching to controlling the power conversion circuitry in a voltage-controlled mode when a background transition voltage is reached.

    Systems and methods to control pulse welding

    公开(公告)号:US11504789B2

    公开(公告)日:2022-11-22

    申请号:US16653503

    申请日:2019-10-15

    Abstract: Systems and methods to control pulse welding are disclosed. An example welding-type system includes: power conversion circuitry configured to convert input power to welding-type power; and control circuitry configured to control the power conversion circuitry to output the welding-type power in a plurality of pulse cycles, each pulse cycle including background, ramp up, peak, and ramp down phases. Controlling the power conversion circuitry involves: during the background phase, controlling the power conversion circuitry in a voltage-controlled mode using a background voltage as a target voltage; during the ramp up phase, controlling the power conversion circuitry by changing the target voltage to a peak voltage; during the peak phase, controlling the power conversion circuitry using the peak voltage as the target voltage; and during the ramp down phase, controlling the power conversion circuitry by changing the target voltage to the background voltage.

    METHODS AND APPARATUS TO SYNERGICALLY CONTROL A WELDING-TYPE OUTPUT DURING A WELDING-TYPE OPERATION

    公开(公告)号:US20220168837A1

    公开(公告)日:2022-06-02

    申请号:US17524362

    申请日:2021-11-11

    Abstract: Methods and apparatus to synergically control a welding-type output during a welding-type operation are disclosed. An example welding-type power supply includes a power conversion circuit configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch; a communication circuit configured to receive a control signal from a remote-control device during a welding-type operation; and a control circuit configured to synergically control at least two of a voltage of the welding-type power output by the power conversion circuitry, a current of the welding-type power, or a wire feed speed.

    METHODS AND APPARATUS TO SYNERGICALLY CONTROL A WELDING-TYPE OUTPUT DURING A WELDING-TYPE OPERATION

    公开(公告)号:US20210299774A1

    公开(公告)日:2021-09-30

    申请号:US17182376

    申请日:2021-02-23

    Abstract: An example welding-type power supply includes power conversion circuitry configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch; communications circuitry configured to receive a control signal from a remote control device during a welding-type operation, wherein the control signal is representative of a value within a first predetermined range of values; and control circuitry configured to: determine, based on at least one physical characteristic of a welding operation, a first limit range of a voltage, a current, or a wire feed speed and a second limit range of a second one of the voltage, the current, or the wire feed speed; and synergically control the first one and the second one of the voltage, the current, or the wire feed speed within the first limit range and within the second limit range based on the value of the control signal, wherein the first limit range and the second limit range are mapped to the first predetermined range of values.

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