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1.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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3.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：US20240227415A1
公开(公告)日：2024-07-11
申请号：US18406206
申请日：2024-01-07
Applicant: Illinois Tool Works Inc.
Inventor： Timothy Joseph Boucher , Ryan Patrick Boucher , Jack Quillin , Brian Schwartz
CPC classification number: B41J3/40733 , B41J2/32 , B41M5/0094
Abstract: A printing system is provided that may include plural stations that load objects to be printed upon into the printing system, print indicia on the objects, cure the indicia printed on the objects, inspect the indicia printed on the objects, re-orient the objects, and/or unload the objects from the printing system. The printing system also may include a conveyance assembly extending between the stations. The conveyance assembly may independently and/or separately move the objects between or among the stations.
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Patent Agency Ranking
5.发明授权公开(公告)号：US11660697B2
公开(公告)日：2023-05-30
申请号：US16707717
申请日：2019-12-09
Applicant: Illinois Tool Works Inc.
Inventor： Adam E. Anders , Brian Schwartz , Paul William Garvey
CPC classification number: B23K9/1043 , H01F27/29 , H02M7/06
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：US11660695B2
公开(公告)日：2023-05-30
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
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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7.发明申请公开(公告)号：US20190111512A1
公开(公告)日：2019-04-18
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：US20180302002A1
公开(公告)日：2018-10-18
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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9.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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