Welding Power Supply Synergic Output Control During Live Parameter Changes
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Solution Overview
Problem
Conventional welding power supplies lack the ability to synergically adjust output power during welding operations, particularly when dealing with workpieces of varying thickness and geometry, leading to issues such as burn-through and inadequate fusion.
Innovation Solution
A welding-type power supply system that allows operators to manually adjust output power by simultaneously changing voltage and wire feed speed using a variable-input trigger, enabling continuous adjustment between different deposition modes and incorporating a trigger hold feature for maintaining synergic output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional welding power supplies use fixed output settings, then the device complexity is reduced, but the adaptability to varying workpiece thickness and geometry deteriorates
Solution Approach 1:
The patent implements dynamic control of welding parameters by allowing operators to adjust voltage and wire feed speed in real-time during the welding process. The power supply transitions from fixed settings to dynamically adjustable parameters, enabling adaptation to varying workpiece thickness and geometry without requiring multiple separate devices or complex reconfiguration.
Solution Approach 2:
The invention changes the welding parameters from fixed values to variable ranges. Operators can continuously adjust voltage and wire feed speed parameters during operation, allowing the system to adapt to different workpiece conditions. This parameter variability resolves the contradiction by providing adaptability while maintaining a single integrated device.
2Manufacturing precision
If welding power supplies allow manual adjustment of voltage and wire feed speed independently, then the control precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent combines multiple control functions into a unified synergic control mode. Instead of requiring operators to independently adjust voltage and wire feed speed as separate parameters, the system merges them into a coordinated adjustment mechanism where changing one parameter automatically adjusts the other to maintain optimal welding conditions. This reduces operational complexity while preserving control precision.
Solution Approach 2:
The implementation includes feedback mechanisms that monitor welding conditions and automatically adjust parameters to maintain optimal performance. The system provides real-time feedback on welding current, voltage, and wire feed speed, enabling operators to make precise adjustments without manually calculating the relationship between parameters. This feedback loop maintains manufacturing precision while improving ease of operation.
3Adaptability or versatility
If welding power supplies provide wide range of output power adjustment, then the adaptability to different deposition modes is improved, but the stability of welding parameters deteriorates
Solution Approach 1:
The system implements dynamic parameter adjustment with automated stabilization. When operators adjust voltage or wire feed speed to change deposition modes, the system dynamically responds by coordinating both parameters and then stabilizing them at the new setpoint. This dynamic control mechanism allows wide adaptation range while maintaining parameter stability during each operating mode.
Solution Approach 2:
The patent incorporates feedback control that continuously monitors welding parameters and makes automatic corrections to maintain stability. When the output power is adjusted to accommodate different deposition modes, the feedback system ensures that parameters settle at stable operating points and prevents drift or oscillation. This feedback mechanism resolves the contradiction by providing both wide adaptability and parameter stability.
Data Source
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AI summary
A welding-type power supply (102) includes power conversion circuitry (110) configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch 8106); communications circuitry (118) configured to receive a control signal from a remote control device during a welding-type operation, wherein the control signal is representative of a value within a first predetermined range of values; and control circuitry (112) configured to: determine, based on at least one physical characteristic of a welding operation, a first limit range of a voltage, a current, or a wire feed speed and a second limit range of a second one of the voltage, the current, or the wire feed speed; and synergically control the first one and the second one of the voltage, the current, or the wire feed speed within the first limit range and within the second limit range based on the value of the control signal, wherein the first limit range and the second limit range are mapped to the first predetermined range of values.