# US 10,307,854 B2 · Method for selection of weld control algorithms > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,854 B2 - Document ID: US10307854B2 - Status: Granted - Kind: B2 - Application number: 15/868,005 - Filed: 2018-01-11 - Published: 2018-07-12 - Granted: 2019-06-04 - Earliest claimed: 2011-05-26 - Assignees: Victor Equipment Company - Applicants: Victor Equipment Company - Inventors: Roger H. Lambert; Geoffrey H. Putnam - Web page: https://patentgrep.com/patent/US10307854B2 ## CPC - B23K 9/0953: {using computing means} - B23K 9/0956: {using sensing means, e.g. optical} - B23K 9/10: Other electric circuits therefor; Protective circuits; Remote controls - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM ## Abstract A system and method for generating a weld are provided. The system receives a selection of a magnitude of a voltage. The system selects a first weld control algorithm when the magnitude of the voltage is in a first range of values. The system may also select a second weld control algorithm when the magnitude of the voltage is in a second range of values. The system may generate welding output power based on the first and second weld control algorithms. ## Claims ### Claim 1 A system for generating a weld for a welding machine, the system comprising: a power circuit for generating welding output power for a welding process for the welding machine; and a control circuit in communication with the power circuit and configured to: receive a selected welding process from a plurality of welding processes, the plurality of welding processes including gas metal arc welding, flux core arc welding, shielded metal arc welding, and inert gas welding; receive a value of a detected welding parameter for the welding machine; automatically select a first weld control algorithm from a plurality of weld control algorithms in the case that the detected welding parameter is in a first range of values for the selected welding process, and generate and provide power to the welding machine based on the first algorithm; and automatically select a second weld control algorithm from the plurality of weld control algorithms in the case that the detected welding parameter is in a second range of values for the selected welding process, and generate and provide power to the welding machine based on the second algorithm. ### Claim 2 (depends on 1) The system of claim 1, wherein the second range of values is between the first range of values. ### Claim 3 (depends on 1) The system of claim 1, wherein the welding process is flux core arc welding. ### Claim 4 (depends on 1) The system of claim 1, wherein the welding process is gas metal arc welding. ### Claim 5 (depends on 4) The system of claim 4, wherein the first weld control algorithm comprises a voltage control mode algorithm. ### Claim 6 (depends on 5) The system of claim 5, wherein the second weld control algorithm comprises a current control mode algorithm or a controlled dip transfer control, or the second weld control algorithm is implemented as a finite state machine. ### Claim 7 (depends on 4) The system of claim 4, wherein the first weld control algorithm comprises a proportional-integral loop. ### Claim 8 (depends on 7) The system of claim 7, wherein the second weld control algorithm comprises a finite state machine loop. ### Claim 9 (depends on 1) The system of claim 1, wherein the welding process is shielded metal arc welding. ### Claim 10 (depends on 9) The system of claim 9, wherein the first weld control algorithm comprises a current control mode algorithm. ### Claim 11 (depends on 10) The system of claim 10, wherein the second weld control algorithm comprises an arc force control mode algorithm. ### Claim 12 (depends on 1) The system of claim 1, wherein the control circuit is further configured to select a third weld control algorithm from the plurality of weld control algorithms when the detected welding parameter is in a third range of values. ### Claim 13 (depends on 1) The system of claim 1, wherein the first and second weld control algorithms are each selected from the group of a current control mode algorithm, a voltage control mode algorithm, a controlled dip transfer algorithm, a finite state machine and an arc force control mode algorithm. ### Claim 14 A method for generating a weld for a welding machine, the method comprising: receiving, at a control circuit, a detected welding parameter; receiving a selected welding process from a plurality of welding processes, the plurality of welding processes including gas metal arc welding, flux core arc welding, shielded metal arc welding, and inert gas welding; automatically selecting a first weld control algorithm from a plurality of weld control algorithms in the case that the detected welding parameter is in a first range of values for the selected welding process, and generate and provide power to the welding machine via the power circuit based on the first weld control algorithm; automatically selecting a second weld control algorithm from the plurality of weld control algorithms in the case that the detected welding parameter is in a second range of values for the selected welding process, and generate and provide power to the welding machine via the power circuit based on the second weld control algorithm; and generating and providing welding output power to the weld machine based on the selected first or second weld control algorithms. ### Claim 15 (depends on 14) The method of claim 14, wherein the first weld control algorithm comprises a current control mode algorithm. ### Claim 16 (depends on 14) The method of claim 14, wherein the second weld control algorithm comprises a voltage control mode algorithm. ### Claim 17 (depends on 14) The method of claim 14, wherein the second control algorithm comprises a controlled dip transfer control. ### Claim 18 (depends on 14) The method of claim 14, wherein the second control algorithm is implemented as a finite state machine. ### Claim 19 (depends on 14) The method of claim 14, wherein the second weld control algorithm comprises an arc force control mode algorithm. ### Claim 20 A method for generating a weld for a welding machine, the method comprising: receiving, at a control circuit, a value of a detected welding parameter; receiving a selected welding process from a plurality of welding processes, the plurality of welding processes including gas metal arc welding, flux core arc welding, shielded metal arc welding, and inert gas welding; automatically selecting a first weld control algorithm from a plurality of weld control algorithms in the case that the detected welding parameter is in a first range of values of the selected welding process, and generate and provide power to the welding machine via a power circuit based on the first weld control algorithm; automatically selecting a second weld control algorithm from the plurality of weld control algorithms in the case that the detected welding parameter is in a second range of values of the selected welding process, and generate and provide power to the welding machine via the power circuit based on the second weld control algorithm; generating and providing welding output power to the welding machine based on the selected first or second weld control algorithms; continuously monitoring the value of the detected welding parameter after the welding output power has been provided to the welding machine; and determining whether to change the selected first or second weld control algorithm based on the continuously monitored value of the detected welding parameter.