Battery powered welding system
A battery powered welding system is provided. In one welding system a battery powered welder includes control circuitry configured to control a welding power output converted from power from an external battery power source. The battery powered welder also includes a wire drive assembly coupled to the control circuitry and configured to feed a welding wire using power from the external battery power source. The battery powered welder includes a case integrally supporting and enclosing the control circuitry and the wire drive assembly. The case is not configured to enclose the external battery power source.
1. A battery powered welder comprising:
control circuitry configured to control a welding power output converted from power from an external battery power source;
a wire drive assembly comprising a wire drive motor and one or more wire feed roller, the wire drive assembly communicably coupled to the control circuitry and configured to feed a welding wire using power from the external battery power source; and
a wire feed speed control circuitry comprising a pulse width modulation wire drive motor control circuit configured to generate one or more signals to regulate a voltage in a wire drive motor based on a reference wire feed speed level selected by the operator.
2. The welder of claim 1 , wherein the case comprises a storage area configured to store a MIG torch, at least one weld cable, and at least one battery cable.
3. The welder of claim 1 , wherein the control circuitry comprises a pulse width modulated weld output controller configured to control the welding power output.
4. The welder of claim 1 , wherein the control circuitry comprises a pulse width modulated wire drive controller configured to control the wire drive assembly.
5. The welder of claim 1 , wherein the control circuitry comprises a fan controller configured to control the operation of a cooling fan.
6. The welder of claim 1 , comprising a cooling fan configured to aid in dissipating heat generated by the control circuitry.
7. The welder of claim 1 , comprising a gas valve configured to control the flow of gas to a welding torch.
8. A battery powered welding system comprising:
a MIG torch for performing a welding operation;
control circuitry configured to control a welding power output converted from power from an external battery power source;
a wire feed speed control circuitry comprising a pulse width modulation wire drive motor control circuit configured to generate one or more signals to regulate a voltage in a wire drive motor based on a reference wire feed speed level selected by the operator; and
a wire drive assembly coupled to the wire drive motor control circuit and to the control circuitry and configured to feed a welding wire using power from the external battery power source.
9. The system of claim 8 , comprising a work cable configured to be coupled to the case.
10. The system of claim 8 , comprising a weld cable configured to couple the MIG torch to the case.
11. The system of claim 8 , comprising a battery cable configured to couple the control circuitry to one or more batteries of the external battery power source.
12. The system of claim 8 , wherein the case comprises a louver configured to dissipate heat produced by the control circuitry.
13. The system of claim 8 , wherein the case comprises a user interface configured to control the operation of the welding system.
14. The system of claim 8 , wherein the control circuitry comprises a pulse width modulated weld output controller configured to control the welding power output.
15. An externally powered welder comprising:
a welding power converter configured to receive power from an external power source;
a weld output controller configured to control welding power output of the welding power converter; and
a wire drive controller configured to control a wire drive assembly; and
a polarity change-over device configured to reverse a polarity of the welding output power between a work clamp cable and the welding torch.
16. The welder of claim 15 , comprising a fan controller configured to control the operation of a cooling fan.
17. The welder of claim 15 , comprising a gas valve controller configured to control the operation of a gas valve.
18. The welder of claim 15 , wherein the weld output controller is configured to receive a control signal from a weld output control device.
19. The welder of claim 15 , wherein the wire drive controller is configured to receive a control signal from a wire feed speed control device.
20. The welder of claim 15 , comprising a switch detection circuit configured to detect when a welding torch trigger is actuated.