METHOD AND APPARATUS TO IMPROVE AND CONTROL THE PROPAGATION DELAY IN A CURRENT SLEWING CIRCUIT
    1.
    发明申请
    METHOD AND APPARATUS TO IMPROVE AND CONTROL THE PROPAGATION DELAY IN A CURRENT SLEWING CIRCUIT 有权
    改进和控制电流延迟电路中传播延迟的方法和装置

    公开(公告)号:US20100327928A1

    公开(公告)日:2010-12-30

    申请号:US12492252

    申请日:2009-06-26

    IPC分类号: H03K5/12

    CPC分类号: H03K17/163

    摘要: A circuit for independently controlling slew and propagation delay of a current DAC is provided. The circuit applies dual slope technique with feed-back control the gate (or control electrode) of a switching transistor to make propagation delay independent control from rise/fall slew rate. This allows one to adjust propagation delay and current slew rate separately to achieve better performance.

    摘要翻译: 提供了用于独立控制电流DAC的转换和传播延迟的电路。 该电路采用双斜率技术,反馈控制开关晶体管的栅极(或控制电极),使传播延迟独立于上升/下降转换速率控制。 这样可以分别调整传播延迟和电流转换速率,以达到更好的性能。

    Clamp to enable low voltage switching for high voltage terminal applications
    2.
    发明授权
    Clamp to enable low voltage switching for high voltage terminal applications 有权
    用于高电压端子应用的钳位以实现低电压开关

    公开(公告)号:US08143812B2

    公开(公告)日:2012-03-27

    申请号:US12491609

    申请日:2009-06-25

    IPC分类号: H05B37/02

    摘要: An output stage for an LED driver is provided. In particular, a low voltage clamp, which uses several cascode circuits, is provided to protect low voltage switching transistors in the range of two times higher voltage application under both normal and fault conditions. Additionally, a circuit for regulating the bias voltage applied to each of the cascode circuits is provided to prevent damage during startup, while an internal voltage regulator is settling.

    摘要翻译: 提供了一种用于LED驱动器的输出级。 特别地,提供了使用几个共源共栅电路的低电压钳位电路,以在正常和故障条件下保护两倍于更高电压应用范围内的低电压开关晶体管。 此外,提供用于调节施加到每个共源共栅电路的偏置电压的电路,以在内部稳压器稳定期间防止启动期间的损坏。

    Method and apparatus to improve and control the propagation delay in a current slewing circuit
    3.
    发明授权
    Method and apparatus to improve and control the propagation delay in a current slewing circuit 有权
    用于改善和控制当前回转电路中的传播延迟的方法和装置

    公开(公告)号:US07928784B2

    公开(公告)日:2011-04-19

    申请号:US12492252

    申请日:2009-06-26

    IPC分类号: H03K5/12

    CPC分类号: H03K17/163

    摘要: A circuit for independently controlling slew and propagation delay of a current DAC is provided. The circuit applies dual slope technique with feed-back control the gate (or control electrode) of a switching transistor to make propagation delay independent control from rise/fall slew rate. This allows one to adjust propagation delay and current slew rate separately to achieve better performance.

    摘要翻译: 提供了用于独立控制电流DAC的转换和传播延迟的电路。 该电路采用双斜率技术,反馈控制开关晶体管的栅极(或控制电极),使传播延迟独立于上升/下降转换速率控制。 这样可以分别调整传播延迟和电流转换速率,以达到更好的性能。

    CLAMP TO ENABLE LOW VOLTAGE SWITCHING FOR HIGH VOLTAGE TERMINAL APPLICATIONS
    4.
    发明申请
    CLAMP TO ENABLE LOW VOLTAGE SWITCHING FOR HIGH VOLTAGE TERMINAL APPLICATIONS 有权
    钳位到低电压终端应用的低电压开关

    公开(公告)号:US20100327777A1

    公开(公告)日:2010-12-30

    申请号:US12491609

    申请日:2009-06-25

    IPC分类号: H05B37/02 H03K5/08

    摘要: An output stage for an LED driver is provided. In particular, a low voltage clamp, which uses several cascode circuits, is provided to protect low voltage switching transistors in the range of two times higher voltage application under both normal and fault conditions. Additionally, a circuit for regulating the bias voltage applied to each of the cascode circuits is provided to prevent damage during startup, while an internal voltage regulator is settling.

    摘要翻译: 提供了一种用于LED驱动器的输出级。 特别地,提供了使用几个共源共栅电路的低电压钳位电路,以在正常和故障条件下保护两倍于更高电压应用范围内的低电压开关晶体管。 此外,提供用于调节施加到每个共源共栅电路的偏置电压的电路,以在内部稳压器稳定期间防止启动期间的损坏。