Energy conservation and improved cooling in welding machines
First Claim
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1. A system for generating a weld, the system comprising:
- a power circuit having an inverter for generating welding output voltage for a welding process;
a control circuit in communication with the power circuit;
a voltage reducing circuit in parallel with the inverter and in communication with the control circuit for generating a reduced output voltage relative to the welding output voltage if the welding process is idle for a first period of time; and
a timer for determining the first predefined period of time and for determining a second period of time after the first period of time during which the welding process remains idle,wherein the voltage reducing circuit and the inverter supply power to a welding electrode and a part to be welded such that either the voltage reducing circuit or the inverter provides a voltage that completes a circuit with the welding electrode and the part to be welded, wherein the inverter is turned on and the voltage reducing circuit is turned off prior to the first period of time elapsing to provide the welding output voltage, wherein the inverter is turned off and the voltage reducing circuit is turned on to provide the reduced output voltage after the first period of time elapses, and wherein the inverter remains turned off, the voltage reducing circuit remains turned on, and an accessory component is turned off after the second period of time elapses.
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Abstract
A system and method for generating a weld are provided. A power circuit in communication with a control circuit generates welding output voltage. A voltage reducing circuit in communication with the power circuit generates a reduced output voltage relative to the welding output voltage if the system determines that the welding process is idle for the predefined period of time. The welding output voltage is restored from the reduced voltage if the welding process is restarted.
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Citations
20 Claims
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1. A system for generating a weld, the system comprising:
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a power circuit having an inverter for generating welding output voltage for a welding process; a control circuit in communication with the power circuit; a voltage reducing circuit in parallel with the inverter and in communication with the control circuit for generating a reduced output voltage relative to the welding output voltage if the welding process is idle for a first period of time; and a timer for determining the first predefined period of time and for determining a second period of time after the first period of time during which the welding process remains idle, wherein the voltage reducing circuit and the inverter supply power to a welding electrode and a part to be welded such that either the voltage reducing circuit or the inverter provides a voltage that completes a circuit with the welding electrode and the part to be welded, wherein the inverter is turned on and the voltage reducing circuit is turned off prior to the first period of time elapsing to provide the welding output voltage, wherein the inverter is turned off and the voltage reducing circuit is turned on to provide the reduced output voltage after the first period of time elapses, and wherein the inverter remains turned off, the voltage reducing circuit remains turned on, and an accessory component is turned off after the second period of time elapses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18, 19, 20)
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11. A method for generating a weld, comprising:
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generating, by a power circuit, a welding output voltage for a welding process; generating, by a voltage reducing circuit, a reduced output voltage relative to the welding output voltage if the welding process is idle for a first period of time; and determining a second period of time after the first period during which the welding process remains idle, wherein the voltage reducing circuit is in parallel with an inverter and at least one of a voltage feedback circuit and a current feedback circuit for switching between the reduced output voltage provided by the voltage reducing circuit and the welding output voltage provided by the inverter, wherein the voltage reducing circuit and the inverter are connected to a welding electrode and a part to be welded such that either the voltage reducing circuit or the inverter provides a voltage that completes a circuit with the welding electrode and the part to be welded, wherein the inverter is turned on and the voltage reducing circuit is turned off prior to the first period of time elapsing to provide the welding output voltage, wherein the inverter is turned off and the voltage reducing circuit is turned on to provide the reduced output voltage after the first period of time elapses, and wherein the inverter remains turned off, the voltage reducing circuit remains turned on, and an accessory component is turned off after the second period of time elapses. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification