Dynamic Power Limitation
First Claim
1. A welding power supply, comprising:
- a power factor correction (PFC) module;
a software control module coupled to the PFC module; and
an inverter module coupled to the software control module to provide an output welding current,wherein the software control module determines a maximum allowed power dissipation based on information provided by the PFC module and the inverter module,wherein the inverter module adjusts the output welding current based on the determined maximum allowed power dissipation.
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Abstract
Dynamic power limitation functionality described herein can be used to continuously calculate a maximum allowed power dissipation for a welding power supply. The maximum allowed power dissipation can be less than a maximum possible power dissipation. The calculated maximum allowed power dissipation can then be used as a dynamic boundary condition for a welding process functionality. The maximum allowed power dissipation can be determined based on temperature so as to enable higher output currents when the power supply operates at lower ends of a temperature scale. Information provided from an output inverter and an input power factor correction (PFC) module can provide inputs for calculating the maximum allowed power dissipation. Information provided by the inverter and the PFC module can include both static design parameters and dynamic sensor information.
31 Citations
20 Claims
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1. A welding power supply, comprising:
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a power factor correction (PFC) module; a software control module coupled to the PFC module; and an inverter module coupled to the software control module to provide an output welding current, wherein the software control module determines a maximum allowed power dissipation based on information provided by the PFC module and the inverter module, wherein the inverter module adjusts the output welding current based on the determined maximum allowed power dissipation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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providing static design parameters to a power supply controller of a welding system; providing dynamic sensor information to the power supply controller; calculating a maximum allowed power dissipation level; adjusting generation of an output welding current based on the calculated maximum allowed power dissipation. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification