Level shifter with reduced duty cycle variation
    3.
    发明申请
    Level shifter with reduced duty cycle variation 审中-公开
    电平移位器具有减少的占空比变化

    公开(公告)号:US20050285658A1

    公开(公告)日:2005-12-29

    申请号:US10880132

    申请日:2004-06-29

    IPC分类号: H03F1/26 H03K25/02

    CPC分类号: H03K25/02

    摘要: A voltage level shifting circuit (10) transitions an input signal at a first voltage to a second voltage higher than the first voltage. A cross-coupled latch provides the second voltage. Cascode configured transistors (16, 26) are connected in series with input transistors (18, 28) that receive the first voltage in complementary form. Capacitive devices (34, 40) are connected between the first voltage and gates of the cascode configured transistors for allowing independent small signal variations to occur on the gates of the cascode configured transistors for better control of duty cycle and rise and fall time matching of the level shifting circuit. Isolation devices (32, 38) permit independent modification of small signal voltages to occur on the gates of the cascode configured transistors.

    摘要翻译: 电压电平移位电路(10)将第一电压的输入信号转换到高于第一电压的第二电压。 交叉耦合闩锁提供第二电压。 串联配置的晶体管(16,26)与以互补形式接收第一电压的输入晶体管(18,28)串联连接。 电容器件(34,40)连接在共源共栅配置的晶体管的第一电压和栅极之间,用于允许在共源共栅配置的晶体管的栅极上发生独立的小信号变化,以更好地控制占空比和上升和下降时间匹配 电平转换电路。 隔离装置(32,38)允许在共源共栅配置晶体管的栅极上发生小信号电压的独立修改。