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公开(公告)号：US12087533B2
公开(公告)日：2024-09-10
申请号：US17583267
申请日：2022-01-25
发明人： David Lanes
摘要： A method for controlling an electromagnetic actuator including: applying a first control strategy in which first and third switches are kept in a closed state, whereas a second switch is switched between its open and closed states; detecting an occurrence of overconsumption of current in a coil of the actuator, by detecting that voltage measured on a control bus has exceeded a predefined voltage limit or by detecting that a duty cycle of the second switch has dropped below a threshold value; and in response, applying a second control strategy, instead of the first control strategy, in which the third switch is periodically opened in order to decrease the current supplied to the coil.
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公开(公告)号：US12106915B2
公开(公告)日：2024-10-01
申请号：US17789091
申请日：2020-12-25
发明人： Bing Shuang , David Lanes , Vincent Geffroy
CPC分类号： H01H47/005 , H01H47/22
摘要： Embodiments of the present disclosure relate to a control circuit for a contactor and a control method thereof. The control circuit comprises: a pulse converter configured to convert a turn-on control signal into a continuous pulse signal; a first controller configured to generate a first breaking control signal at a first time in response to detection of the disappearance of the continuous pulse signal received from the pulse converter; a second controller configured to generate a second breaking control signal at a second time in response to detection of the disappearance of the continuous pulse signal received from the pulse converter, wherein the first time is earlier than the second time; and a coil driver configured to turn off a current of the excitation coil according to the received first breaking control signal, and if the current is not turned off according to the first breaking control signal, to further turn off the current of the excitation coil according to the second breaking control signal, thereby realizing the breaking of the main contact.
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公开(公告)号：US12112109B2
公开(公告)日：2024-10-08
申请号：US17101569
申请日：2020-11-23
发明人： David Lanes
IPC分类号： G06F30/367 , G06F13/40 , G06F30/373
CPC分类号： G06F30/367 , G06F13/4022 , G06F30/373
摘要： A safety control device intended to process a control signal and generate a safety control order. The device has:
a control input,
a protection circuit,
a coupler having an emitter circuit designed to emit a second signal and a receiver circuit for providing a third signal,
a switch,
a pulse generator designed to cyclically control opening and closure of the switch, and
a processing circuit designed to execute a method for safely processing the third signal.
Also disclosed are a contactor having such a control device and a method for safely processing a control signal.-
公开(公告)号：US20220238289A1
公开(公告)日：2022-07-28
申请号：US17583267
申请日：2022-01-25
发明人： David Lanes
摘要： A method for controlling an electromagnetic actuator including: applying a first control strategy in which first and third switches are kept in a closed state, whereas a second switch is switched between its open and closed states; detecting an occurrence of overconsumption of current in a coil of the actuator, by detecting that voltage measured on a control bus has exceeded a predefined voltage limit or by detecting that a duty cycle of the second switch has dropped below a threshold value; and in response, applying a second control strategy, instead of the first control strategy, in which the third switch is periodically opened in order to decrease the current supplied to the coil.
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公开(公告)号：US20210165943A1
公开(公告)日：2021-06-03
申请号：US17101569
申请日：2020-11-23
发明人： David Lanes
IPC分类号： G06F30/367 , G06F30/373 , G06F13/40
摘要： A safety control device intended to process a control signal and generate a safety control order. The device has: a control input, a protection circuit, a coupler having an emitter circuit designed to emit a second signal and a receiver circuit for providing a third signal, a switch, a pulse generator designed to cyclically control opening and closure of the switch, and a processing circuit designed to execute a method for safely processing the third signal. Also disclosed are a contactor having such a control device and to a method for safely processing a control signal.
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