Switching power supply with voltage limiting device and control method thereof
    1.
    发明公开
    Switching power supply with voltage limiting device and control method thereof 审中-公开
    开关电源电压限制装置和方法,用于在其控制

    公开(公告)号:EP1748538A1

    公开(公告)日:2007-01-31

    申请号:EP05425565.8

    申请日:2005-07-29

    CPC classification number: H02M1/32

    Abstract: A switching power supply includes input terminals (100a, 100b), which receive a first voltage (V AC ), and a switching converter stage (2), provided with a first switching device (8). The power supply further includes a second switching device (105), connected between the input terminals (100a, 100b) and the switching converter stage (2), and an activation device (110, 111), associated to the second switching device (105) for controlling the second switching device (105) so as to limit a second voltage (V INL ) applied to the switching converter stage (2).

    Abstract translation: 一种开关电源包括输入端子(100A,100B)其中接收第一电压(V AC),和开关转换器级(2),设置有第一开关装置(8)。 所述电源进一步包括连接在输入端子(100A,100B)和所述开关转换器级(2)之间的第二开关装置(105),以及相关联的第二开关装置激活设备(110,111)上(105 ),用于控制所述第二开关器件(105),以便限制第二电压(V INL)施加到开关转换器级(2)。

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