Multiple level charge pump generating four voltages with four distinctive levels, and method for the same
    1.
    发明公开
    Multiple level charge pump generating four voltages with four distinctive levels, and method for the same 审中-公开
    用于产生具有四种不同等级的四个电压多级电荷泵,和为此的方法

    公开(公告)号:EP2840694A1

    公开(公告)日:2015-02-25

    申请号:EP13368024.9

    申请日:2013-08-20

    IPC分类号: H02M3/07

    摘要: A multi level charge pump circuit configured to be associated with at least two power supplies Vdd1 and Vdd2, and which provides four levels of positive andn negative voltage. The circuit includes first and second fly capacitors (32, 33) and first and second tank capacitor (31,34). PMOS transistors 101, 102, 111, 112 and 125 as NMOS transistors 122, 123, 124, 121 and 126 allow the generation of two high voltage levels and two low voltage levels for the charge pump, those low voltage levels being derived from a charging of a series of the two fly capacitors. The circuit is particularly useful for embodying an audio device within a platform which does not incorporate any dedicated SMPS circuit.

    摘要翻译: 构成的多级电荷泵电路与至少两个电源VDD1和VDD2相关联,并提供四个级别正ANDN负电压。 该电路包括第一和第二蝇电容器(32,33)以及第一和第二储能电容器(31,34)。 PMOS晶体管101,102,111,112和125为NMOS晶体管122,123,124,121和126允许两个高电压电平,并用于电荷泵两个低电压电平的产生,这些低电压电平被从充电衍生 的两个串联飞电容器。 该电路适用于不包括任何专用的SMPS电路的平台内的音频设备体现特别有用。