Apparatus and methods are provided for an engine driven welding-type power system that includes an engine to drive an electric generator to provide a first power output, and a removable welder having an energy storage device to provide a second power output. The system includes a housing having a dock to store a removable welder. While stored within the dock, the energy storage device is recharged by the first power output. Once removed from the dock, the removable welder is configured to operate independently of the power system.

The present invention is directed to a welding-type power source that includes a power source housing and an engine arranged in the power source housing to supply electrical power. An energy storage device is included that is in rechargeable association with the internal combustion engine and arranged to provide welding-type power for at least a given period.

A method controls a battery-powered welding device and a battery-powered welding device includes a battery having a battery voltage and a battery current and a welding controller containing a boost converter having at least a switch and a buck converter having at least one switch for controlling a welding current and a welding voltage supplied to a welding torch. A switch for bypassing the booster converter is connected to a switch controller designed to close the switch if the intermediate circuit voltage between the boost converter and the buck converter is less than or equal to the battery voltage and to open the switch if the boost converter is activated.

A method and apparatus for providing welding-type power derives motive power from a variable speed engine and driving a variable frequency generator with the motive power to provide a generator output. The generator output is preregulated to provide an intermediate signal, and the preregulating is controlled at least in response to feedback indicative of the welding-type output power. Welding-type output power is derived from the bus, and controlled at least in response to the welding feedback. Auxiliary output power is also derived from the bus, and controlled at least in response to feedback indicative of the auxiliary output power. The speed of the engine is controlled at least in response to one of the auxiliary feedback and the welding feedback. Energy produced by the engine that is not used as an output is stored by batteries. When the output exceeds the energy generated, the difference is supplied by the batteries.

Provided is a setting assistance device capable of informing that which welding condition should be corrected with a value as the limit in order to achieve the target quality.

In a setting assistance device (40) of a welding condition which is a condition in welding, an input receiving unit (42) accepts designation of the target quality in welding, and a welding condition information output unit (44) outputs an item of a welding condition to be corrected to achieve the target quality, and limit information indicating a limit of a value which can be taken by the item of the welding condition to achieve the target quality, in accordance with the acceptance of the designation of the target quality by the input receiving unit (42).

A battery-powered welder with a plurality of quick-connect modular components includes a power source component; a neck assembly component to create an electric arc between an electrode wire and workpiece metal, causing the electrode wire and workpiece metal to melt and join; an electrode spool component including an electrode wire spool reel housing and spool to carry the electrode wire; a wire feed component including a motor to feed the electrode wire from electrode spool component into the neck assembly component; a handle component for holding and operating the battery-powered welder during use; a flexible cable to provide remote attachment of various components to avoid additional hand held weight; a power source component to power the battery-powered welder, wherein the power source component, the neck assembly component, the electrode spool component, the wire feed component, the handle component, the flexible cable, and the power source component include quick connects to allow seamless, simplistic interchange and reconfiguration of the battery-powered welder.

The invention described herein generally pertains to a system and method for a welding device and, in particular, a hybrid welding device, that leverages a renewable energy source for a source of electrical current. The welding device can include one or more renewable energy kits that harvest renewable energy sources for performing a welding operation or a powering at least one of a device or component external to the welding device. The welding device includes renewable energy component that collects an input to convert to an electrical current that can be used as a replacement current, a supplemental current, or a complimentary current.

A welding assembly and method is described which includes a charging circuit and regulator coupled to an input power source; an energy storage element connected in parallel with the charging circuit and regulator to increase the weld current output, wherein the energy storage element is charged by the charging circuit and regulator; and a weld output controller connected in parallel with the energy storage element for controlling a welding arc between an electrode and a workpiece, wherein the weld output controller includes a forward converter/inverter including a series circuit of a primary winding of a transformer, and a switching element which is coupled to the energy storage element, and a rectifier smoothing circuit which rectifies and smoothes a voltage induced in a secondary winding of the transformer according to a switching operation of the switching element, wherein the rectifier smoothing circuit conducts during an ON period of the switching element.

A welding assembly and method is described which includes a charging circuit and regulator coupled to an input power source; an energy storage element connected in parallel with the charging circuit and regulator to increase the weld current output, wherein the energy storage element is charged by the charging circuit and regulator; and a weld output controller connected in parallel with the energy storage element for controlling a welding arc between an electrode and a workpiece, wherein the weld output controller includes a forward converter/inverter including a series circuit of a primary winding of a transformer, and a switching element which is coupled to the energy storage element, and a rectifier smoothing circuit which rectifies and smoothes a voltage induced in a secondary winding of the transformer according to a switching operation of the switching element, wherein the rectifier smoothing circuit conducts during an ON period of the switching element.

A hybrid welder having a motor-driven welder assembly including a motor; an energy storage device electrically connected to the motor-driven assembly; a heat transfer assembly, the heat transfer assembly being in thermal communication with the motor and the energy storage device, wherein the heat transfer assembly is selectively adaptive to transfer heat from the motor to the energy storage device.