Integrated mobile tool and welder power supply system
First Claim
1. A integrated mobile tool and welder power supply comprising:
- a primary DC power source;
a DC output terminal coupled to said primary DC power source;
a DC input terminal for receiving an external DC power signal;
an AC input terminal for receiving an external AC power signal;
an AC output terminal;
a power inverter for converting a DC power signal to an inverted AC power signal, said power inverter being coupled to said primary DC power source;
an AC power detector coupled to said power inverter for detecting said external AC power signal and providing an indication thereof upon detecting said external AC power signal;
an AC transfer switch coupled to said power inverter and said AC input terminal for selectively coupling said AC output terminal to said power inverter or said AC input terminal, said selective coupling being determined by said indication of detecting said external AC power signal; and
at least one power converter for converting an AC power signal or a DC power signal to a DC power signal for replenishing said primary DC power source to maintain a predetermined power level.
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Accused Products
Abstract
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 such as standard AC power tools. The power supply chassis houses a power inverter for transforming DC power from the primary DC power source into AC power and one or more power converters for supplying a recharging current to the primary DC power source from one or both of an external AC power source or an external DC power source. The power supply system can be configured such that if an external AC power source is available, that AC power source is electrically coupled to an AC output terminal for supplying AC-powered tools. In one embodiment, the switching of AC output power from the power inverter to the external AC power source may be overridden by means of an AC output mode selection switch. In another embodiment, the system is equipped with a DC transfer switch, a motor drive output and a motor demand indicator input so that a DC motor (e.g., the welding wire spool feed motor DC welder) may be driven from a regulated DC power source as opposed to the unregulated primary DC power source.
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Citations
28 Claims
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1. A integrated mobile tool and welder power supply comprising:
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a primary DC power source;
a DC output terminal coupled to said primary DC power source;
a DC input terminal for receiving an external DC power signal;
an AC input terminal for receiving an external AC power signal;
an AC output terminal;
a power inverter for converting a DC power signal to an inverted AC power signal, said power inverter being coupled to said primary DC power source;
an AC power detector coupled to said power inverter for detecting said external AC power signal and providing an indication thereof upon detecting said external AC power signal;
an AC transfer switch coupled to said power inverter and said AC input terminal for selectively coupling said AC output terminal to said power inverter or said AC input terminal, said selective coupling being determined by said indication of detecting said external AC power signal; and
at least one power converter for converting an AC power signal or a DC power signal to a DC power signal for replenishing said primary DC power source to maintain a predetermined power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated mobile tool and welder power supply comprising:
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a primary DC power source;
a DC output terminal coupled to said primary DC power source;
a DC input terminal for receiving an external DC power signal;
an AC input terminal for receiving an external AC power signal;
an AC output terminal;
a power inverter for converting a DC power signal to an inverted AC power signal, said power inverter being coupled to said primary DC power source;
an AC power detector coupled to said power inverter for detecting said external AC power signal and providing an indication upon detecting said external AC power signal;
an AC transfer switch coupled to said power inverter and said AC input terminal for selectively coupling said AC output terminal to said power inverter or said AC input terminal, said selective coupling being determined by said indication of detecting said external AC power signal;
at least one power converter for converting an AC power signal or a DC power signal to a DC power signal for replenishing said primary DC power source to maintain a predetermined power level. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification