US 11,756,747 B2
High speed arc suppressor
Reinhold Henke, Alexandria, MN (US); and Warren Kahle, Woodbury, MN (US)
Assigned to Arc Suppression Technologies, Bloomington, MN (US)
Filed by Arc Suppression Technologies, Bloomington, MN (US)
Filed on Apr. 8, 2022, as Appl. No. 17/716,356.
Application 17/716,356 is a continuation of application No. 16/984,673, filed on Aug. 4, 2020, granted, now 11,302,491.
Application 16/984,673 is a continuation of application No. 16/776,433, filed on Jan. 29, 2020, granted, now 10,770,241.
Claims priority of provisional application 62/798,326, filed on Jan. 29, 2019.
Claims priority of provisional application 62/798,316, filed on Jan. 29, 2019.
Claims priority of provisional application 62/798,323, filed on Jan. 29, 2019.
Prior Publication US 2022/0344108 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 31/327 (2006.01); H01H 1/00 (2006.01); H01H 9/30 (2006.01); H01H 50/04 (2006.01); H01R 13/05 (2006.01); H01R 13/66 (2006.01); H01R 13/70 (2006.01); H01H 9/54 (2006.01); H01R 24/30 (2011.01); H02H 1/00 (2006.01); H02H 9/08 (2006.01); H01H 33/59 (2006.01); H01H 50/44 (2006.01)
CPC H01H 1/0015 (2013.01) [G01R 31/3272 (2013.01); G01R 31/3277 (2013.01); H01H 9/30 (2013.01); H01H 9/54 (2013.01); H01H 33/593 (2013.01); H01H 50/045 (2013.01); H01H 50/44 (2013.01); H01R 13/052 (2013.01); H01R 13/6666 (2013.01); H01R 13/70 (2013.01); H01R 24/30 (2013.01); H02H 1/0015 (2013.01); H02H 9/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A high speed arc suppressor configured to suppress arcing across a power contactor coupled to an alternating current (AC) power source, the high speed arc suppressor comprising:
a first phase-specific arc suppressor configured to suppress arcing across contacts of the power contactor in a positive domain, comprising:
a first high speed switch configured to enable operation of the first phase-specific arc suppressor when an input signal from the contacts is in the positive domain and disable operation of the first phase-specific arc suppressor when the input signal from the contacts is in a negative domain; and
a second phase-specific arc suppressor configured to suppress arcing across the contacts in a negative domain, comprising:
a second high speed switch configured to enable operation of the first phase-specific arc suppressor when an input signal from the contacts is in the negative domain and disable operation of the first phase-specific arc suppressor when the input signal from the contacts is in the positive domain;
wherein the first and second high speed switches are configured to switch the first and second phase-specific arc suppressors between the enable operation and the disable operation in not more than ten (10) microseconds;
wherein the first and second high speed switches are transistors; and
wherein each of the first and second phase-specific arc suppressors further comprises:
an arc ignition detector circuit;
a trigger lock circuit; and
an arc burn memory.