Portable welder with integral battery charger
First Claim
1. In a portable electric arc welder having a power source creating a DC voltage between two output terminals, said welding having a weight of less than 100 pounds and a rating of less than 300 amperes, a voltage feedback circuit to control the voltage between said terminals by a reference voltage signal, and welding output leads for performing a welding operation, the improvement comprising:
- a battery charger integrated with said welder and connected to said terminals, said battery charger having output leads connectable to a battery having an output voltage of at least about 12 volts DC, said battery charger further having a charging sequence circuit operable by an input enable signal and controlled by conditions of said battery being charged to generate a voltage and/or a current to charge said battery; and
, a manual selector switching on said welder and movable between a first position connecting said terminals to said welding output leads and a second position creating said battery charger input enable signal.
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Accused Products
Abstract
A portable electric arc welder having a power source creating a DC voltage between two output terminals to drive a welding device and an integrated, internal battery charger with an input stage and an output connectable to a battery to be charged, and a selectable switch having a first position connecting the terminals to the welding device and a second position connecting the terminals to the integrated battery charger.
112 Citations
13 Claims
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1. In a portable electric arc welder having a power source creating a DC voltage between two output terminals, said welding having a weight of less than 100 pounds and a rating of less than 300 amperes, a voltage feedback circuit to control the voltage between said terminals by a reference voltage signal, and welding output leads for performing a welding operation, the improvement comprising:
- a battery charger integrated with said welder and connected to said terminals, said battery charger having output leads connectable to a battery having an output voltage of at least about 12 volts DC, said battery charger further having a charging sequence circuit operable by an input enable signal and controlled by conditions of said battery being charged to generate a voltage and/or a current to charge said battery; and
, a manual selector switching on said welder and movable between a first position connecting said terminals to said welding output leads and a second position creating said battery charger input enable signal. - View Dependent Claims (2, 3, 4, 5, 6)
- a battery charger integrated with said welder and connected to said terminals, said battery charger having output leads connectable to a battery having an output voltage of at least about 12 volts DC, said battery charger further having a charging sequence circuit operable by an input enable signal and controlled by conditions of said battery being charged to generate a voltage and/or a current to charge said battery; and
- 7. A portable electric arc welder having a power source creating a DC voltage between two output terminals to drive a welding device and an integrated, internal battery charger with an input stage and an output stage connectable to a battery to be charged, and a selectable switch having a first position connecting said terminals to said welding device and a second position connecting said terminals to said integrated battery charger at a selected location.
Specification