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公开(公告)号：US12021471B2
公开(公告)日：2024-06-25
申请号：US17432287
申请日：2020-02-20
发明人： Philipp Steinberger , Hubert Lenker , Peter Spiel
IPC分类号： H02P29/02 , H02H1/00 , H02H3/05 , H02H3/08 , H02H3/093 , H02H7/08 , H02H7/12 , H02H7/122 , H02H7/22 , H02P23/14 , H02P29/024
CPC分类号： H02P29/027 , H02H1/0007 , H02H3/05 , H02H3/08 , H02H3/093 , H02H7/08 , H02H7/12 , H02H7/1227 , H02H7/222 , H02P23/14
摘要： A load protection and control apparatus (1) for protecting and controlling an electrical load connected to the load protection and control apparatus (1) comprising an overcurrent protection circuit (1A) having a power switch (5) through which the electrical load receives an electrical load current (IL) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (ΔU4) corresponding to the current rise speed of the electrical load current (IL) flowing from an input terminal (2) of the load protection and control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (ΔU4) generated by the sensor component (4) and/or depending on a voltage drop (ΔU5) along the power switch (5) and adapted to switch off said power switch (5) upon detection of an overcurrent within a switch-off period of less than one millisecond; and/or comprising a power supply control circuit (10) having a sensor component (9) adapted to measure at the input terminal (2) a supply voltage (U) notified to a control unit (8) of the load protection and control apparatus (1) adapted to control an electrical power supplied to the electrical load, wherein each input terminal (2) is configured to establish an electrical connection with a busbar (14) of a busbar system or with a current carrying wire.
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公开(公告)号：US12009764B2
公开(公告)日：2024-06-11
申请号：US17431628
申请日：2020-02-20
IPC分类号： H02P29/024 , H02H1/00 , H02H3/05 , H02H3/08 , H02H3/093 , H02H7/08 , H02H7/12 , H02H7/122 , H02H7/22 , H02P23/14
CPC分类号： H02P29/027 , H02H1/0007 , H02H3/05 , H02H3/08 , H02H3/093 , H02H7/08 , H02H7/12 , H02H7/1227 , H02H7/222 , H02P23/14
摘要： A motor control apparatus for controlling a power supply to an electrical motor (M) connected to an output terminal (3) of the motor control apparatus (1) comprising:
an overcurrent protection circuit (1A) having a power switch (5) through which the electrical motor (M) receives an electrical load current (IL) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (ΔU4) corresponding to the current rise speed of the electrical load current (IL) flowing from an input terminal (2) of the motor control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (ΔU4) generated by the sensor component (4) and/or depending on a voltage drop (ΔU5) along the power switch (5) and adapted to switch off said power switch (5) upon detection of an overcurrent within a switch-off period of less than one millisecond; and/or comprising
a power supply control circuit (10) having a sensor component (9) adapted to measure at the input terminal (2) a supply voltage notified to a control unit (8) of the motor control apparatus (1) adapted to control an electrical power supplied to the electrical motor (M) depending on an operation mode of the electrical motor (M).-
公开(公告)号：US20240186785A1
公开(公告)日：2024-06-06
申请号：US18439201
申请日：2024-02-12
申请人： Tahoe Research, Ltd.
摘要： Methods and apparatus are disclosed for battery current monitoring. An example apparatus includes a haptic device, an isolation switch to deliver power from a battery to the haptic device, an integrator to integrate a signal based on a current from the battery to the haptic device to generate an integrator output, and control logic to control the isolation switch based on a comparison of the integrator output to a threshold.
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公开(公告)号：US20240097428A1
公开(公告)日：2024-03-21
申请号：US18471436
申请日：2023-09-21
发明人： Anand Venkatramani , Gerald Plank
IPC分类号： H02H3/093
CPC分类号： H02H3/093
摘要： A circuit breaker for interrupting an electrical circuit when current limit values and/or current/time period limit values are exceeded has an energy transducer, the primary side of which is connected to the electrical circuit and the secondary side of which provides a power supply for at least one control unit of the circuit breaker. A first rectifier circuit and a second rectifier circuit are connected to the secondary-side output of the energy transducer. The first rectifier circuit is connected to the secondary-side output of the energy transducer via a capacitor.
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公开(公告)号：US11923796B2
公开(公告)日：2024-03-05
申请号：US17429110
申请日：2020-02-20
发明人： Philipp Steinberger , Hubert Lenker , Peter Spiel
IPC分类号： H02H3/093 , H02H1/00 , H02H3/05 , H02H3/08 , H02H7/08 , H02H7/12 , H02H7/122 , H02H7/22 , H02P23/14 , H02P29/024
CPC分类号： H02P29/027 , H02H1/0007 , H02H3/05 , H02H3/08 , H02H3/093 , H02H7/08 , H02H7/12 , H02H7/1227 , H02H7/222 , H02P23/14
摘要： An apparatus for switching and/or protection of a load connected to said apparatus, said apparatus (1) comprising: a power switch (5) through which the connected load receives an electrical current; a sensor component (4) connected in series with said power switch (5) and adapted to generate directly an electrical voltage drop corresponding to a current rise speed of the electrical current flowing via the sensor component (4) and via the power switch (5) to said load; and a driver circuit (6) adapted to detect an occurring overcurrent depending on a voltage drop generated by said sensor component (4) with or without a voltage drop along the power switch (5) and to switch off said power switch (5) upon detection of an overcurrent within a switch-off period to protect said power switch (5) and said load.
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公开(公告)号：US11862962B2
公开(公告)日：2024-01-02
申请号：US18085947
申请日：2022-12-21
申请人： Lunar Energy, Inc.
IPC分类号： H02H5/04 , H02H3/02 , H02H1/00 , H02H3/093 , G01R31/317
CPC分类号： H02H5/041 , H02H1/0061 , H02H3/021 , H02H3/093 , G01R31/31726
摘要： A controllable main breaker includes a main breaker sized to fit within an existing panel slot of an electrical panel. The main breaker comprises a trigger to open the main breaker in response to a thermal fault or overcurrent event. The controllable main breaker further includes an auxiliary shell sized to fit within at least one adjacent breaker slot. The auxiliary shell includes a controllable actuator that mechanically opens the main breaker.
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公开(公告)号：US11843235B2
公开(公告)日：2023-12-12
申请号：US18181064
申请日：2023-03-09
申请人： Rohm Co., Ltd.
发明人： Toru Takuma , Naoki Takahashi , Shuntaro Takahashi
摘要： In order both to accommodate instantaneous current as well as overcurrent protection in accordance with the load, an overcurrent protection circuit has: a threshold value generation unit that, in accordance with a threshold value control signal, switches between setting an overcurrent detection threshold value to a first set value (∝ Iref) and a second set value (∝ Iset) lower than the first set value; an overcurrent detection unit that compares a sense signal in accordance with the current being monitored and the overcurrent detection value and generates an overcurrent protection signal; a reference value generation unit that generates a reference value (∝ Iset) in accordance with the seconds set value; a comparison unit that compares the sense signal and the reference value, and generates a comparison signal; and a threshold value control unit that monitors the comparison signal, and generates a threshold value control signal.
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公开(公告)号：US20230396026A1
公开(公告)日：2023-12-07
申请号：US18198504
申请日：2023-05-17
申请人： Vertiv Corporation
发明人： Kevin R. Ferguson , Casey Gilson , Scott Cooper , Jason Armstrong
CPC分类号： H01R13/6683 , H02H9/002 , H02H3/093 , H01R13/2492
摘要： The present disclosure is directed to a rack power distribution unit (RPDU) that automatically and safely switches power to one or more receptacles. The RPDU includes one or more processors utilizing control algorithms that manage bistable relays so that in-rush current is minimized upon manual connection/disconnection of power to a load device. In particular, relay contact status (open/closed) is identified based on changes in RMS or peak voltage influenced by the load impedance. The RPDU is also configured to predict timings for voltage zero-crossing events. In this manner, and based on the determination of relay contact status and voltage zero-crossing prediction, open relay contacts are identified and safely closed at voltage zero-crossing.
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公开(公告)号：US20230253167A1
公开(公告)日：2023-08-10
申请号：US18015134
申请日：2021-09-08
发明人： Kazunori KIDERA , Tatsuo KOGA , Takahiro OHORI
CPC分类号： H01H1/0015 , H02H3/093
摘要： An arc detection system includes an obtainer and a determiner. The obtainer obtains a measurement result for current flowing in a power supply line to which power is supplied from a DC power source. The determiner determines, based on a component of a specific frequency band in the measurement result for the current obtained by the obtainer, whether an arc fault has occurred. The determiner determines that the arc fault has occurred when a specific time for which the component of the specific frequency band is at least a threshold is longer than an occurrence time in which an arc can occur when a device is attached to or detached from the power supply line.
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公开(公告)号：US20230216289A1
公开(公告)日：2023-07-06
申请号：US18181064
申请日：2023-03-09
申请人： Rohm Co. Ltd.
发明人： Toru TAKUMA , Naoki TAKAHASHI , Shuntaro TAKAHASHI
摘要： In order both to accommodate instantaneous current as well as overcurrent protection in accordance with the load, an overcurrent protection circuit has: a threshold value generation unit that, in accordance with a threshold value control signal, switches between setting an overcurrent detection threshold value to a first set value (∝ Iref) and a second set value (∝ Iset) lower than the first set value; an overcurrent detection unit that compares a sense signal in accordance with the current being monitored and the overcurrent detection value and generates an overcurrent protection signal; a reference value generation unit that generates a reference value (∝ Iset) in accordance with the seconds set value; a comparison unit that compares the sense signal and the reference value, and generates a comparison signal; and a threshold value control unit that monitors the comparison signal, and generates a threshold value control signal.
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