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公开(公告)号:US20230184420A1
公开(公告)日:2023-06-15
申请号:US17865619
申请日:2022-07-15
发明人: Zhouzhou YIN , Kun TONG , Xiangjun ZHOU , Yi XIE
CPC分类号: F21V23/023 , H02M3/155 , H05K5/0217 , H01R13/6271 , G01R33/07 , G01R33/0088 , G01R33/0058 , F21W2131/406
摘要: This application provides a power supply system. The power supply system includes a first device and a second device. The first device may be one of a control device and a film-and-television light, and the second device may be the other of the control device and the film-and-television light. The first device includes a first housing, a first coupler socket, a power supply circuit and a first set of contacts. The second device includes a second housing, a second coupler socket, a power receiving circuit, and a second set of contacts. In the power supply system. The power supply circuit in the first device and the power receiving circuit in the second device can be electrically connected through the first set of contacts in stalled on the first coupler socket and the second set of contacts installed on the second coupler socket.
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公开(公告)号:US20240136807A1
公开(公告)日:2024-04-25
申请号:US18401002
申请日:2023-12-29
发明人: Yi HUANG , Xiangjun ZHOU , Yi XIE , Kun TONG
摘要: A power source circuit includes a first power source subcircuit. The first power source subcircuit includes a first overvoltage protection circuit, a first undervoltage protection circuit, a first drive circuit, and a first switching circuit. A cascade output result of the first over-voltage protection circuit and the first undervoltage protection circuit is used to control the first switching circuit for on-off control of the first power source subcircuit.
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公开(公告)号:US20240235179A9
公开(公告)日:2024-07-11
申请号:US18401002
申请日:2023-12-29
发明人: Yi HUANG , Xiangjun ZHOU , Yi XIE , Kun TONG
摘要: A power source circuit includes a first power source subcircuit. The first power source subcircuit includes a first overvoltage protection circuit, a first undervoltage protection circuit, a first drive circuit, and a first switching circuit. A cascade output result of the first over-voltage protection circuit and the first undervoltage protection circuit is used to control the first switching circuit for on-off control of the first power source subcircuit.
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公开(公告)号:US20220330404A1
公开(公告)日:2022-10-13
申请号:US17536033
申请日:2021-11-28
发明人: Yi HUANG , Xiangjun ZHOU , Kun TONG
IPC分类号: H05B47/10
摘要: A lighting device includes a light source and a power switching circuit including a plurality of power input circuits. Each of the power input circuits includes a power input terminal and a switch control circuit connected in series between the power input terminal and the light source. A control terminal of Nth switch control circuit controls the Nth switch control circuit to be turned off according to a first electrical signal input by first to (N−1)th power input terminals. The control terminal of the Nth switch control circuit controls the Nth switch control circuit to be turned on according to a second electrical signal being input by Nth power input terminal, and controls the first to (N−1)th switch control circuits to be turned off. The N is a positive integer greater than 1. A power switching circuit is also provided.
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