Patent
Method and apparatus for welding with battery power
Bernard J. Vogel,Richard Beeson +1 more
TLDR
In this paper, a method and apparatus provides welding-type power and preferably includes a removable battery or other energy storage device, a converter connected to the battery, and a controller.Abstract:
A method and apparatus provides welding-type power and preferably includes a removable battery or other energy storage device, a converter connected to the battery, and a controller. The controller may have a CV and/or a CSC and/or an AC weld control module, and/or an ac auxiliary control module. The converter is a boost converter, a buck converter, a cuk converter, a forward converter, an inverter, a bridge converter, and/or a resonant converter. The controller may include a battery charging control module, and may have one or more charging schedules, and/or data for stored charge, thermal information, expected life of the battery, maximum amp-hour charge for the battery, maximum charging current and/or feedback. The battery charging schedules may include at least 3 phases, such as a phase of increasing voltage and a phase of decreasing current, a substantially constant power phase. The controller can wirelessly provide data to a display or pda. A generator may provide power to the battery, charger, and/or the weld. It can include a vehicle and use its dc power system.read more
Citations
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Patent
Portable battery powered welder
TL;DR: In this paper, a portable battery-powered welder is described, which is configured to operate without an external power source and includes a suitcase to integrally support and completely enclose the welding circuit, the battery, and the wire feeder.
Patent
Welding power supply with digital control of duty cycle
TL;DR: In this paper, a welding power supply including power conversion circuitry adapted to receive a primary source of power, to utilize one or more power semiconductor switches to chop the primary source and to convert the chopped power to a welding output is provided.
Patent
Systems and devices for determining weld cable inductance
TL;DR: In this paper, the peak to peak switching ripple in a voltage present on welding output terminals is measured and used to determine the weld cable inductance based on the measured peak-to-peak voltage ripple.
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Portable generator and battery charger verification control method and system
TL;DR: In this article, a portable welding unit having an engine, a generator coupled to the engine, and a compressor coupled with the engine and a smart battery charger coupled to a generator is described.
Patent
Hybrid welding systems and devices
TL;DR: In this article, a hybrid welding device including a fuel cell and an energy storage device that cooperate to power a welding operation and/or an auxiliary operation is provided, where an engine coupled to a generator is configured to supplement the power provided by the fuel cell.
References
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Patent
Battery management system
TL;DR: In this paper, a battery management system for management and control of a plurality of rechargeable batteries connected in series is presented, where a programmed central processing unit communicates with a battery module and a bulk charger during a charging cycle.
Patent
Method And Apparatus For Receiving A Universal Input Voltage In A Welding Power Source
TL;DR: In this article, a method and apparatus for providing a welding current is described, where the power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier that rectifies the ac input into a dc signal.
Patent
Fuel cell operated welder
TL;DR: An electric arc welder powered by a plurality of liquid organic fuel cells is described in this article, where the fuel cells are stacked together to produce the desired arc voltage and current between an electrode and the workpiece.
Patent
Integrated mobile tool and welder power supply system
TL;DR: An integrated mobile tool and welder power supply system includes a primary DC power source coupled to a power supply chassis for supplying DC power to DC-operated power equipment such as welders and AC power to AC-powered equipment.
Patent
Portable welding unit
Thomas D. Chandler,John C. West +1 more
TL;DR: In this paper, a portable welding unit (10) comprises a housing (12) containing a first battery (34) and a second battery (35) connected in series, each of the batteries is a sealed non-spillable battery and has a positive terminal and a negative terminal.