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公开(公告)号：US11348742B2
公开(公告)日：2022-05-31
申请号：US16909081
申请日：2020-06-23
发明人： Reinhold Henke , Robert Thorbus
IPC分类号： H01H1/00 , G01R31/27 , H01H50/04 , G01R31/327 , G01R31/40 , H02H1/00 , H02H3/08 , H01H9/54 , H02M3/156 , H03K3/313 , H03K17/60 , H04W4/60 , G06F3/0484 , G06F3/04842 , H04L67/1095 , H04L67/148 , H01H1/50 , H02H3/06 , H02H3/087 , H02H7/26 , H02H9/02 , H02H9/08 , H03K3/45 , H01H47/00 , H01H71/04
摘要： Device, circuit, system, and method for contact sequencing are discussed. An electrical circuit includes a first pair of terminals adapted to be connected across a first set of switchable contacts, and a second pair of terminals adapted to be connected across a second set of switchable contacts that are coupled to an arc suppression circuit. A controller circuit is coupled to the first and second pairs of terminals and is configured to sequence activation or deactivation of the first and second sets of contacts based on a contact control signal. A first power switching circuit is coupled to the first pair of terminals and the controller circuit. The first power switching circuit is configured to switch power from an external power source and to trigger the activation or the deactivation of the first set of switchable contacts based on a first logic state signal from the controller circuit.
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公开(公告)号：US20210327656A1
公开(公告)日：2021-10-21
申请号：US17222891
申请日：2021-04-05
发明人： Reinhold Henke , Robert Thorbus
摘要： A power contact electrode plasma therapy circuit includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact. A plasma ignition detector is configured to detect an electrical parameter over the switchable contact electrodes indicative of the formation of plasma between the switchable contact electrodes and output a plasma ignition signal based on the electrical parameter as detected. A plasma burn memory is configured to receive and store the plasma ignition signal. A controller circuit is configured to receive from the plasma burn memory the plasma ignition signal, start a time based on receipt of the plasma ignition signal, and upon the timer meeting a time requirement, output a plasma extinguish command. A plasma extinguishing circuit, configured to bypass the pair of terminals upon receiving the trigger signal to extinguish the plasma between the switchable contact electrodes.
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公开(公告)号：US11120953B2
公开(公告)日：2021-09-14
申请号：US16909088
申请日：2020-06-23
发明人： Reinhold Henke , Robert Thorbus
IPC分类号： H01H1/00 , H01H50/04 , G01R31/327 , G01R31/40 , H02H1/00 , H01H9/54 , H02M3/156 , H03K3/313 , H03K17/60 , H01H1/50 , H02H3/06 , H02H3/087 , H02H7/26 , H02H9/02 , H02H9/08 , H03K3/45 , H01H47/00 , H01H71/04
摘要： A power contact EoL predictor includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact; a power switching circuit configured to trigger activation of the contact electrodes based on a first logic state signal or deactivation based on a second logic state signal; a contact separation detector determining a time of separation of the switchable contact electrodes of the power contact during the deactivation, and a controller configured to generate the second logic state signal to trigger the deactivation, and determine a stick duration associated with the set of switchable contact electrodes. The stick duration is based on a difference between a time the second logic state signal is generated and the time of separation during the contact cycle. The controller generates an EoL prediction for the contact electrodes based on the determined stick duration for multiple contact cycles.
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公开(公告)号：US20210074487A1
公开(公告)日：2021-03-11
申请号：US17018046
申请日：2020-09-11
发明人： Reinhold Henke , Robert Thorbus
摘要： A power contact electrode plasma therapy circuit includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact. A plasma ignition detector is configured to detect an electrical parameter over the switchable contact electrodes indicative of the formation of plasma between the switchable contact electrodes and output a plasma ignition signal based on the electrical parameter as detected. A plasma burn memory is configured to receive and store the plasma ignition signal. A controller circuit is configured to receive from the plasma burn memory the plasma ignition signal, start a time based on receipt of the plasma ignition signal, and upon the timer meeting a time requirement, output a plasma extinguish command. A plasma extinguishing circuit, configured to bypass the pair of terminals upon receiving the trigger signal to extinguish the plasma between the switchable contact electrodes.
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公开(公告)号：US20210020389A1
公开(公告)日：2021-01-21
申请号：US17030738
申请日：2020-09-24
发明人： Reinhold Henke , Warren Kahle
IPC分类号： H01H9/30 , H01H33/59 , H01H50/44 , G01R31/327 , H01H1/00
摘要： An arc suppressing circuit configured to suppress arcing across a power contactor coupled to an alternating current (AC) power source having a predetermined number of phases, each contact of the power contactor corresponding to one of the predetermined number of phases includes a number of dual unidirectional arc suppressors equal to the predetermined number of phases of the AC power source. Each dual unidirectional arc suppressor includes a first phase-specific arc suppressor configured to suppress arcing across the associated contacts in a positive domain, a a second phase-specific arc suppressor configured to suppress arcing across the associated contacts in a negative domain, and a coil lock controller, configured to be coupled between a contact coil driver of the power contactor, configured to detect an output condition from the contact coil driver and inhibit operation of the first and second phase-specific arc suppressors over a predetermined time.
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公开(公告)号：US20210005404A1
公开(公告)日：2021-01-07
申请号：US16929559
申请日：2020-07-15
发明人： Reinhold Henke
摘要： A two terminal arc suppressor for protecting switch, relay or contactor contacts and the like comprises a two terminal module adapted to be attached in parallel with the contacts to be protected and including a circuit for deriving an operating voltage upon the transitioning of the switch, relay or contactor contacts from a closed to an open disposition, the power being rectified and the resulting DC signal used to trigger a power triac switch via an optoisolator circuit whereby arc suppression pulses are generated for short predetermined intervals only at a transition of the mechanical switch, relay or contactor contacts from an closed to an open transition and, again, at an open to a close transition during contact bounce conditions.
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公开(公告)号：US10826248B2
公开(公告)日：2020-11-03
申请号：US16776347
申请日：2020-01-29
发明人： Reinhold Henke
摘要： A sliding power contact and method includes a mobile load device connector and a socket. The mobile load device connector includes a non-current power pin having a first length, a current power pin having a second length less than the first length, a neutral pin, and a ground pin. The socket includes a non-current power contact configured to electrically couple with the non-current power pin, a current power contact configured to electrically couple with the current power pin, a neutral contact configured to electrically couple with the neutral pin, and a ground pin configured to electrically couple with the ground pin. An arc suppressor is directly coupled to at least one of the non-current power pin and the non-current power contact, wherein the arc suppressor, the non-current power pin and the non-current power contact form a current path between the current power pin and the current power contact.
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公开(公告)号：US10727010B1
公开(公告)日：2020-07-28
申请号：US16776123
申请日：2020-01-29
发明人： Reinhold Henke , Robert Thorbus
摘要： A power contact EoL predictor includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact; a power switching circuit configured to trigger activation of the contact electrodes based on a first logic state signal or deactivation based on a second logic state signal; a contact separation detector determining a time of separation of the switchable contact electrodes of the power contact during the deactivation, and a controller configured to generate the second logic state signal to trigger the deactivation, and determine a stick duration associated with the set of switchable contact electrodes. The stick duration is based on a difference between a time the second logic state signal is generated and the time of separation during the contact cycle. The controller generates an EoL prediction for the contact electrodes based on the determined stick duration for multiple contact cycles.
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公开(公告)号：US10134536B2
公开(公告)日：2018-11-20
申请号：US15361835
申请日：2016-11-28
发明人： Reinhold Henke
摘要： A two terminal arc suppressor for protecting switch, relay or contactor contacts and the like comprises a two terminal module adapted to be attached in parallel with the contacts to be protected and including a circuit for deriving an operating voltage upon the transitioning of the switch, relay or contactor contacts from a closed to an open disposition, the power being rectified and the resulting DC signal used to trigger a power triac switch via an optoisolator circuit whereby arc suppression pulses are generated for short predetermined intervals only at a transition of the mechanical switch, relay or contactor contacts from an closed to an open transition and, again, at an open to a close transition during contact bounce conditions.
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公开(公告)号：US09847185B2
公开(公告)日：2017-12-19
申请号：US15243257
申请日：2016-08-22
发明人： Reinhold Henke
CPC分类号： H01H9/54 , G01R31/02 , H01H9/542 , H01H33/04 , H01H33/121 , H01H2071/048
摘要： Device, circuit, system, and method for arc suppression. A contact separation detector is configured to output an indication of a separation state of a pair of electrical contacts. A contact bypass circuit, coupled to the contact separation detector, is configured to provide an electrical bypass between the pair of contacts based on the indication.
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