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公开(公告)号：US20240322557A1
公开(公告)日：2024-09-26
申请号：US18519382
申请日：2023-11-27
发明人： Qipeng Ye , Shen Gao , Jiamin Chen , Xiaohang Chen , Jiafei Xia
CPC分类号： H02H7/22 , H02H1/0007
摘要： The present disclosure relates to a power distribution equipment and an operation method thereof. The power distribution equipment includes: a main switch, a power supply end of which being connected to a power distribution network; at least one branch switch, a power supply end of each of the at least one branch switch being connected to a load end of the main switch; a main measurement module that measures a total voltage and a total current associated with the main switch; at least one auxiliary measurement module, each of which measuring a branch current associated with one of the at least one branch switch; and a control module configured to determine an abnormality associated with a first branch switch of the at least one branch switch; and control a disconnection associated with the first branch switch in response to the abnormality.
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公开(公告)号：US20240186820A1
公开(公告)日：2024-06-06
申请号：US18563303
申请日：2023-06-28
发明人： Xiaohang Chen , Haijun Zhao , Ying Shi , Jiamin Chen , Yangfeng Song , Qing Yang , Jihua Dong
摘要： The present invention discloses a power source transfer circuit for switching among a plurality of power sources to supply power to a load. The power source transfer circuit includes a first switch, a second switch and a bypass switch, wherein one of the plurality of power sources supplies power to the load via the first switch and the second switch, and wherein the bypass switch is connected in parallel to the second switch on a neutral line and is configured to control neutral overlapping duration during switching among the plurality of power sources. The power source transfer circuit including a bypass switch provided by the present disclosure can reduce the neutral overlapping duration to microseconds during power source transfer, so as to realize fast and reliable response.
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公开(公告)号：US20240333152A1
公开(公告)日：2024-10-03
申请号：US18399295
申请日：2023-12-28
发明人： Han Wang , Xiaohang Chen , Feng Lu , Meng Du , Jie Feng , Yangfeng Song , Jianwei Tian , Wanlong Bai , Yuchen Ye
IPC分类号： H02M3/156
CPC分类号： H02M3/156
摘要： The present disclosure relates to a power supply circuit and an electrical device. The power supply circuit includes: a first switch; a first capacitor connected in series with the first switch; a voltage sampling device configured to detect a voltage of the first capacitor and/or a power supply bus to which the power supply circuit is connected; and a control circuit configured to output a control signal based on the detected voltage, wherein the first switch is configured to be switched on or off based on the control signal. In this way, a low-voltage withstanding capacitor with a large capacitance can be achieved in the power supply circuit by switching out the capacitor when the power supply bus voltage is high and switching in the capacitor to assist in power supply when the power supply bus voltage is low.
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4.发明公开公开(公告)号：US20240322811A1
公开(公告)日：2024-09-26
申请号：US18574743
申请日：2023-04-19
发明人： Xiaohang Chen , Yangfeng Song , Wanlong Bai , Qing Ling , Zuoren Wu , Jiamin Chen
IPC分类号： H03K17/06 , H03K17/0416 , H03K17/13
CPC分类号： H03K17/063 , H03K17/04163 , H03K17/136
摘要： Embodiments of the present disclosure relate to a method, apparatus for operating a conduction assembly, a start device, and a computer-readable medium. The conduction assembly is coupled between an AC power supply and an inductive load, and comprises a first switch device and a second switch device which are in anti-series connection, the first switch device comprises a first body diode in anti-parallel connection with the first switch device, and the second switch device comprises a second body diode in anti-parallel connection with the second switch device. The method comprises: conducting the conduction assembly at a first conduction angle in a first cycle; conducting the conduction assembly in a second cycle at a second conduction angle that is greater than the first conduction angle, wherein in the first cycle and second cycle, a turn-off timing of the first switch device or the second switch device in anti-parallel connection with the first body diode or second body diode having a conduction direction the same as a current direction is determined based on the current flowing through the conduction assembly. The method proposed here may reduce the power loss of the soft start circuit.
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