Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage

    公开(公告)号:US11958141B2

    公开(公告)日:2024-04-16

    申请号:US16670993

    申请日:2019-10-31

    Abstract: Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage are disclosed. An example welding-type power supply 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 a voltage pulse at a first voltage; determine whether the power conversion circuitry outputs current during the voltage pulse; in response to determining that there is less than a threshold output current during the voltage pulse, control the power conversion circuitry to turn off an output or output a second voltage that is less than the first voltage; and in response to determining that the power conversion circuitry outputs at least the threshold output current during the voltage pulse, control the power conversion circuitry to output the welding-type power.

    ENGINE-DRIVEN POWER SYSTEMS HAVING LOAD MANAGEMENT PRIORITIZATION

    公开(公告)号:US20220037885A1

    公开(公告)日:2022-02-03

    申请号:US17387559

    申请日:2021-07-28

    Abstract: An example engine-driven power system includes: an engine; a generator configured to convert mechanical engine power to electrical power; first and second power subsystems configured to convert the mechanical or electrical power to first and second power outputs, wherein the first and second power subsystems are configurable to output the first and second power outputs simultaneously; an input device configured to control a load management priority, wherein the load management priority comprises at least one of an adjustable ranking, an adjustable balance, or bus voltage thresholds; and control circuitry configured to: control the first and second power subsystems to output the first and second power outputs based on first and second demands; and, in response to determining that a total demand exceeds a capacity, control the first or second power subsystems to reduce the power outputs or the demands based on the load management priority.

    SYSTEMS AND METHODS TO PROVIDE WELDING-TYPE ARC STARTING AND STABILIZATION WITH REDUCED OPEN CIRCUIT VOLTAGE

    公开(公告)号:US20210129250A1

    公开(公告)日:2021-05-06

    申请号:US16670993

    申请日:2019-10-31

    Abstract: Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage are disclosed. An example welding-type power supply 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 a voltage pulse at a first voltage; determine whether the power conversion circuitry outputs current during the voltage pulse; in response to determining that there is less than a threshold output current during the voltage pulse, control the power conversion circuitry to turn off an output or output a second voltage that is less than the first voltage; and in response to determining that the power conversion circuitry outputs at least the threshold output current during the voltage pulse, control the power conversion circuitry to output the welding-type power.

    ENGINE DRIVEN GENERATOR FOR PROVIDING WELDING POWER

    公开(公告)号:US20190143438A1

    公开(公告)日:2019-05-16

    申请号:US15810921

    申请日:2017-11-13

    Abstract: A method and apparatus for providing engine driven welding-type power supply includes an engine, a generator, an input power circuit, a welding-type power circuit, an auxiliary power circuit and a controller. The generator includes permanent magnets that create and provides a generator output from at least one polyphase winding. The input power circuit is connected to the generator output and the welding-type power circuit is connected to the input circuit, and provides a welding-type output. The auxiliary power circuit is connected to the input circuit and provides an auxiliary power output. The controller is connected to the auxiliary power and the welding type power circuits, and can command that there be no load for the generator. The generator is connected to the engine and connected to function as a flywheel to the engine and the engine does not include a flywheel other than the generator.

    METHOD AND APPARATUS FOR PROVIDING WELDING AND AUXILIARY POWER
    9.
    发明申请
    METHOD AND APPARATUS FOR PROVIDING WELDING AND AUXILIARY POWER 有权
    用于提供焊接和辅助功率的方法和装置

    公开(公告)号:US20160256950A1

    公开(公告)日:2016-09-08

    申请号:US14636315

    申请日:2015-03-03

    Abstract: A method and apparatus for providing welding-type power and auxiliary power includes an input circuit, a welding-type output power circuit, an auxiliary power circuit, and a controller. The input circuit receives input power and provides power to a common bus. The welding-type output power circuit receives power from the common bus and provides welding-type output power. The auxiliary power circuit receives power from the common bus and provides non-isolated auxiliary output power. The controller controls the auxiliary power circuit and the welding-type output power circuit.

    Abstract translation: 一种用于提供焊接式动力和辅助动力的方法和装置,包括输入电路,焊接式输出功率电路,辅助电力电路和控制器。 输入电路接收输入电源并向公共总线供电。 焊接式输出功率电路从公共总线接收电力并提供焊接型输出功率。 辅助电源电路从公共总线接收电力,并提供非隔离辅助输出功率。 控制器控制辅助电源电路和焊接式输出电源电路。

    SYSTEMS AND METHODS TO PROVIDE WELDING-TYPE ARC STARTING AND STABILIZATION WITH REDUCED OPEN CIRCUIT VOLTAGE

    公开(公告)号:US20240261884A1

    公开(公告)日:2024-08-08

    申请号:US18609850

    申请日:2024-03-19

    Abstract: Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage are disclosed. An example welding-type power supply 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 a voltage pulse at a first voltage; determine whether the power conversion circuitry outputs current during the voltage pulse; in response to determining that there is less than a threshold output current during the voltage pulse, control the power conversion circuitry to turn off an output or output a second voltage that is less than the first voltage; and in response to determining that the power conversion circuitry outputs at least the threshold output current during the voltage pulse, control the power conversion circuitry to output the welding-type power.

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