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21.发明授权公开(公告)号：US11077514B2
公开(公告)日：2021-08-03
申请号：US15786013
申请日：2017-10-17
Applicant: Illinois Tool Works Inc.
Inventor： Adam E. Anders , Brian Schwartz , Andrew D. Nelson , Bernard J. Vogel
Abstract: Systems and methods to reduce magnetic flux in a switched mode power supply are disclosed. An example welding-type power supply includes a switched mode power supply, including a transformer configured to transform an input voltage to a welding-type voltage; switches configured to control a voltage applied to the primary winding of the transformer; a current detector configured to measure a current through the primary winding; a flux accumulator configured to determine a net flux in the transformer based on a number of volt-seconds applied to the primary winding of the transformer; and a controller configured to: control duty cycles of the switches based on the net flux; and set a value of the net flux in response to the current through the primary winding satisfying a current threshold.
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公开(公告)号：US11070139B2
公开(公告)日：2021-07-20
申请号：US15489321
申请日：2017-04-17
Applicant: Illinois Tool Works Inc.
Inventor： Adam E. Anders , Brian Schwartz , Andrew D. Nelson , Bernard J. Vogel
Abstract: Systems and methods to estimate magnetic flux in a switched mode power supply are disclosed. An example welding-type power supply includes a switched mode power supply, comprising: a transformer configured to transform an input voltage to a welding-type voltage; a capacitor in series with a primary winding of the transformer; and switches configured to control a voltage applied to a series combination of the primary winding of the transformer and the capacitor; a voltage estimator coupled to the transformer and configured to output a signal representative of an alternating-current (AC)-coupled voltage at the capacitor; and a flux accumulator to determine a net flux in the transformer based on the voltage applied to the series combination of the primary winding of the transformer and the capacitor.
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23.发明申请公开(公告)号：US20200180061A1
公开(公告)日：2020-06-11
申请号：US16707717
申请日：2019-12-09
Applicant: Illinois Tool Works Inc.
Inventor： Adam E. Anders , Brian Schwartz , Paul William Garvey
Abstract: A welding-type power supply including a balanced plate rectifier to rectify high frequency alternating current from one or more transformers. The balanced plate rectifier includes an output terminal symmetrically connected to the plates of the plate rectifiers. The impedance between the output terminal and each plate is substantially equal.
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公开(公告)号：US11883911B2
公开(公告)日：2024-01-30
申请号：US17125324
申请日：2020-12-17
Applicant: Illinois Tool Works Inc.
Inventor： Adam E. Anders
CPC classification number: B23K9/0956 , B23K9/0953 , B23K9/1062 , B23K9/124
Abstract: Welding power supplies, wire feeders, and systems to measure a weld circuit resistance via communications over the weld circuit are disclosed. An example welding-type power supply includes: a power conversion circuitry configured to: convert input power to output a signal via a weld circuit; and convert the input power to output welding-type power via the weld circuit; a voltage monitor configured to measure a power supply output voltage of the signal; communications circuitry configured to receive, via the weld circuit, a communication of a second voltage measurement; and control circuitry configured to: determine a resistance and/or and inductance of a portion of the weld circuit based on the power supply output voltage measurement, the second voltage measurement, and a weld circuit current.
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Patent Agency Ranking
25.发明申请公开(公告)号：US20210362262A1
公开(公告)日：2021-11-25
申请号：US17330585
申请日：2021-05-26
Applicant: Illinois Tool Works Inc.
Inventor： Bernard J. Vogel , Adam E. Anders , Dennis R. Sigl
Abstract: A method and apparatus for providing welding type power includes a phase shifted double forward converter having a first and second converter with a controller and an output rectifier. The output rectifier has at least one cathode current path that creates a cathode magnetic field when current flows in the cathode current path. The output rectifier also has at least one anode current path that creates an anode magnetic field when current flows in the anode current path. The cathode current path is disposed and oriented and the anode current path is disposed and oriented such that the cathode magnetic field acts to at least partially cancel the anode magnetic field.
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公开(公告)号：US10799973B2
公开(公告)日：2020-10-13
申请号：US15690563
申请日：2017-08-30
Applicant: Illinois Tool Works Inc.
Inventor： Brian Doyle , Shuang Liu , Erik Miller , Adam E. Anders
Abstract: A welding-type system includes a power supply configured to control preheating of an electrode wire. A controller is configured to receive a plurality of power values corresponding to a power output of the power supply and calculate an arc power value corresponding to an arc condition at the preheated electrode wire based on a rate of change of the plurality of power values. A target power output value is determined based on the calculated arc power value, and the power output is adjusted based on the determined target power value.
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公开(公告)号：US20190337081A1
公开(公告)日：2019-11-07
申请号：US15968464
申请日：2018-05-01
Applicant: ILLINOIS TOOL WORKS INC.
Inventor： Adam E. Anders , Randy Decoster , Andrew D. Nelson , Bernard J. Vogel
IPC: B23K9/10
Abstract: A welding-type power supply that receives alternating current (AC) input power and converts the AC input power to direct current (DC) power to provide power for welding tools. The welding-type power supply is configured to detect whether single phase AC power or three-phase AC power is connected to the input of welding-type power supply. Single phase input power may be detected by sampling ripple voltage of the DC power, either synchronously with the AC input power or synchronously with a signal generated by an output of the welding-type power supply.
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公开(公告)号：US20190061039A1
公开(公告)日：2019-02-28
申请号：US15690563
申请日：2017-08-30
Applicant: Illinois Tool Works Inc.
Inventor： Brian Doyle , Shuang Liu , Erik Miller , Adam E. Anders
Abstract: A welding-type system includes a power supply configured to control preheating of an electrode wire. A controller is configured to receive a plurality of power values corresponding to a power output of the power supply and calculate an arc power value corresponding to an arc condition at the preheated electrode wire based on a rate of change of the plurality of power values. A target power output value is determined based on the calculated arc power value, and the power output is adjusted based on the determined target power value.
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29.发明申请公开(公告)号：US20180257161A1
公开(公告)日：2018-09-13
申请号：US15454293
申请日：2017-03-09
Applicant: Illinois Tool Works Inc.
Inventor： Adam E. Anders , Brian Schwartz , Andrew D. Nelson , Mark Richard Christopher
IPC: B23K9/10
CPC classification number: B23K9/1006 , B23K9/1056 , B23K9/1062 , B23K9/235
Abstract: Welding power supplies, wire feeders, and systems to measure a weld cable voltage drop are disclosed. Example welding-type power supplies include a power converter configured to convert input power to output welding-type power to a remote device via a weld cable; a reference conductor connected between the power supply and the remote device; a voltage monitor configured to determine a first voltage between the weld cable and the reference conductor while substantially zero current is being conducted through the reference conductor; and a receiver circuit configured to receive a second voltage between the weld cable and the reference conductor from the remote device.
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