Welding power supplies, wire feeders, and systems to compensate a weld voltage via communications over a weld circuit

    公开(公告)号:US12240063B2

    公开(公告)日:2025-03-04

    申请号:US18162285

    申请日:2023-01-31

    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example weld circuit communications device includes a receiver circuit, a processor, and a local communications adapter. The receiver circuit to receive a communication via a weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit, the communication including weld voltage feedback information measured at a device remote from a power supply and remote from the weld circuit communications device while the current is flowing through the weld circuit. The processor generates power supply control information based on the weld voltage feedback information. The local communications adapter transmits the power supply control information to control welding-type power output by a power converter to regulate a weld voltage to a weld voltage setpoint.

    Welding power supplies, wire feeders, and systems to compensate a weld voltage via communications over a weld circuit

    公开(公告)号:US10773331B2

    公开(公告)日:2020-09-15

    申请号:US15238585

    申请日:2016-08-16

    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example welding-type power supply includes a power converter, a receiver circuit, and a controller. The power converter converts input power to welding-type power based on a weld voltage setpoint and to output the welding-type power via a weld circuit. The receiver circuit receives a communication via the weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit. The communication includes weld voltage feedback information measured at a device remote from the power supply while the current is flowing through the weld circuit. The controller controls the welding-type power output by the power converter according to a voltage feedback loop using the weld voltage feedback information to regulate a weld voltage at the remote device to the weld voltage setpoint.

    Systems and methods for efficient provision of arc welding power source
    5.
    发明授权
    Systems and methods for efficient provision of arc welding power source 有权
    有效提供电弧焊电源的系统和方法

    公开(公告)号:US09308598B2

    公开(公告)日:2016-04-12

    申请号:US14100832

    申请日:2013-12-09

    CPC classification number: B23K9/1043 B23K9/095 B23K9/1012 H02M7/5387

    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.

    Abstract translation: 提供了用于创建和控制用于焊接,等离子切割或加热的AC输出的方法和系统。 本公开的一个实施例实现了所需的方波AC输出,并且通过组合降压转换器和全桥逆变器的组件来减少所需的电路部件的数量。 提供通过功率控制电路的电流流路,其通过电路中的晶体管的导通和关断产生。 在一个实施例中,提供了控制通过电感器的电流水平的脉冲宽度调制支路。 某些实施例包括双向降压转换器,其将未调节的DC流转换成通过电感器的调节的DC流。 在一个实施例中,提供了控制通过电感器的电流方向的转向支腿。 此外,提供了抑制极性反转期间的寄生负载电感的输出钳位电路。

    Systems, Methods, and Apparatus to Control Weld Current in a Preheating System

    公开(公告)号:US20230075751A1

    公开(公告)日:2023-03-09

    申请号:US17984671

    申请日:2022-11-10

    Abstract: Systems, methods, and apparatus to control weld current in a preheating system are disclosed. An example preheating power supply includes power conversion circuitry configured to output welding-type power via a first output power connector and a second output power connector, and a bypass path prevention circuit configured to prevent less than a threshold voltage applied to the first output power connector and the second output power connector from a different power supply from causing current to flow between the first output power connector and the second output power connector.

    WELDING POWER SUPPLIES, WIRE FEEDERS, AND SYSTEMS TO COMPENSATE A WELD VOLTAGE VIA COMMUNICATIONS OVER A WELD CIRCUIT

    公开(公告)号:US20200223006A1

    公开(公告)日:2020-07-16

    申请号:US16836051

    申请日:2020-03-31

    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example weld circuit communications device includes a receiver circuit, a processor, and a local communications adapter. The receiver circuit to receive a communication via a weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit, the communication including weld voltage feedback information measured at a device remote from a power supply and remote from the weld circuit communications device while the current is flowing through the weld circuit. The processor generates power supply control information based on the weld voltage feedback information. The local communications adapter transmits the power supply control information to control welding-type power output by a power converter to regulate a weld voltage to a weld voltage setpoint.

    Hybrid Welding Systems and Portable Hybrid Welding Modules

    公开(公告)号:US20180123370A1

    公开(公告)日:2018-05-03

    申请号:US15338831

    申请日:2016-10-31

    Abstract: Hybrid welding systems and portable hybrid welding modules are disclosed. An example portable welding power supply includes an output converter circuit to convert direct current (DC) power to welding power, the DC power comprising at least one of DC input power or converted battery power. The portable welding power supply also includes a battery and a bidirectional DC-DC converter circuit configured to receive the DC input power and coupled to the battery. The portable welding power supply also includes a control circuit configured to control the output converter to output the welding power, control the bidirectional DC-DC converter circuit to convert the DC input power to charge the battery, and control the bidirectional DC-DC converter circuit to convert power from the battery to provide the battery power to the output converter.

    SYSTEMS AND METHODS FOR EFFICIENT PROVISION OF ARC WELDING POWER SOURCE
    9.
    发明申请
    SYSTEMS AND METHODS FOR EFFICIENT PROVISION OF ARC WELDING POWER SOURCE 审中-公开
    有效提供电弧焊电源的系统和方法

    公开(公告)号:US20160221104A1

    公开(公告)日:2016-08-04

    申请号:US15095952

    申请日:2016-04-11

    CPC classification number: B23K9/1043 B23K9/095 B23K9/1012 H02M7/5387

    Abstract: Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.

    Abstract translation: 提供了用于创建和控制用于焊接,等离子切割或加热的AC输出的方法和系统。 本公开的一个实施例实现了所需的方波AC输出,并且通过组合降压转换器和全桥逆变器的组件来减少所需的电路组件的数量。 提供通过功率控制电路的电流流路,其通过电路中的晶体管的导通和关断产生。 在一个实施例中,提供了控制通过电感器的电流水平的脉冲宽度调制支路。 某些实施例包括双向降压转换器,其将未调节的DC流转换成通过电感器的调节的DC流。 在一个实施例中,提供了控制通过电感器的电流方向的转向支腿。 此外,提供了抑制极性反转期间的寄生负载电感的输出钳位电路。

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