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    • 2. 发明授权
    • Charge pump circuit
    • 电荷泵电路
    • US06670844B2
    • 2003-12-30
    • US10237714
    • 2002-09-04
    • Fumikazu KobayashiShuuji SakamotoToshiaki Matsubara
    • Fumikazu KobayashiShuuji SakamotoToshiaki Matsubara
    • G05F156
    • H02M3/073
    • A highly efficient charge pump circuit featuring easy circuit design and formation as well as high reliability includes transistors M1-M4 individually having a diode connection configuration and interconnected in cascade, and is adapted to alternately apply a clock signal and an inverted clock signal to the transistors via capacitor elements C1-C4. The charge pump employs a depression-type transistor as the transistors M1-M4 and has an arrangement wherein the transistors M1, M2 on an input side have a greater gate length than the succeeding transistors M3, M4 for increasing the efficiency of boosting voltage. The charge pump circuit includes a single type of device so as to facilitate the circuit design and formation and also to enhance the reliability thereof.
    • 具有容易的电路设计和形成以及高可靠性的高效电荷泵电路包括单独具有二极管连接配置并串联互连的晶体管M1-M4,并且适于交替地将时钟信号和反相时钟信号施加到晶体管 通过电容器元件C1-C4。 电荷泵采用凹陷型晶体管作为晶体管M1-M4,并且具有这样的结构,其中输入侧的晶体管M1,M2具有比后续晶体管M3,M4更大的栅极长度,以提高升压电压的效率。 电荷泵电路包括单一类型的装置,以便于电路设计和形成,并且还提高其可靠性。