POWER SUPPLY SYSTEM
    1.
    发明公开
    POWER SUPPLY SYSTEM 审中-公开

    公开(公告)号:US20230184420A1

    公开(公告)日:2023-06-15

    申请号:US17865619

    申请日:2022-07-15

    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.

    LIGHTING DEVICE AND POWER SWITCHING CIRCUIT

    公开(公告)号:US20220330404A1

    公开(公告)日:2022-10-13

    申请号:US17536033

    申请日:2021-11-28

    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.