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    Voltage slope control method and apparatus for power driver circuit application
    14.
    发明授权
    Voltage slope control method and apparatus for power driver circuit application 有权
    电力斜坡控制方法和电源驱动电路应用的装置

    公开(公告)号：US09236854B2

    公开(公告)日：2016-01-12

    申请号：US13888843

    申请日：2013-05-07

    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

    Inventor： Meng Wang ,  Tao Tao Huang

    IPC: H05B37/02 ,  H03K5/12

    CPC classification number: H03K5/12

    Abstract: A drive circuit includes a first transistor coupled in series with a second transistor at a first intermediate node coupled to a load. An amplifier has an output driving a control terminal of the second transistor. The amplifier includes a first input coupled to a second intermediate node and a second input coupled to a reference voltage. A feedback circuit is coupled between the first intermediate node and the second intermediate node. A slope control circuit is coupled the second intermediate node. The slope control circuit injects a selected value of current into the second intermediate node, that current operating to control the output of the amplifier in setting a slope for change in voltage at the first intermediate node.

    Abstract translation: 驱动电路包括与耦合到负载的第一中间节点与第二晶体管串联耦合的第一晶体管。 放大器具有驱动第二晶体管的控制端的输出。 放大器包括耦合到第二中间节点的第一输入和耦合到参考电压的第二输入。 反馈电路耦合在第一中间节点和第二中间节点之间。 斜坡控制电路耦合第二中间节点。 斜坡控制电路将选择的电流值注入到第二中间节点中，该电流在设定第一中间节点处电压变化的斜率时控制放大器的输出。

    CURRENT SLOPE CONTROL METHOD AND APPARTUS FOR POWER DRIVER CIRCUIT APPLICATION
    15.
    发明申请
    CURRENT SLOPE CONTROL METHOD AND APPARTUS FOR POWER DRIVER CIRCUIT APPLICATION 有权
    电流控制方法和电源驱动电路应用

    公开(公告)号：US20150339963A1

    公开(公告)日：2015-11-26

    申请号：US14818924

    申请日：2015-08-05

    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

    Inventor： Meng Wang ,  Tao Tao Huang

    IPC: G09G3/20 ,  H03K17/687

    CPC classification number: G09G3/3225 ,  G09G3/20 ,  G09G3/3208 ,  G09G3/3648 ,  G09G2300/0842 ,  G09G2310/0259 ,  G09G2310/0291 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/025 ,  G09G2330/028 ,  H02M3/158 ,  H03K5/12 ,  H03K17/04123 ,  H03K17/687 ,  H03K2217/0063 ,  H03K2217/0072

    Abstract: A low side driver includes a first transistor coupled in series with a second transistor at a low side voltage node for a load. A capacitance is configured to store a voltage and a voltage buffer circuit has an input coupled to receive the voltage stored by the capacitance and an output coupled to drive a control node of the second transistor with the stored voltage. A current source supplies current through a switch to the capacitance and the input of the voltage buffer circuit. The switch is configured to be actuated by an oscillating enable signal so as to cyclically source current from the current source to the capacitance and cause a stepped increase in the stored voltage which is applied by the buffer circuit to the control node of the second transistor.

    Abstract translation: 低侧驱动器包括与用于负载的低侧电压节点与第二晶体管串联耦合的第一晶体管。 电容被配置为存储电压，并且电压缓冲器电路具有耦合以接收由电容存储的电压的输入和耦合以用所存储的电压驱动第二晶体管的控制节点的输出。 电流源通过开关将电流提供给电容和电压缓冲电路的输入。 该开关被配置为由振荡使能信号激励，以便将来自电流源的电流循环地引导到电容，并且使由缓冲电路施加到第二晶体管的控制节点的存储电压发生阶梯式增加。

    Fully integrated circuit for generating a ramp signal
    17.
    发明授权
    Fully integrated circuit for generating a ramp signal 有权
    用于产生斜坡信号的完全集成电路

    公开(公告)号：US08907705B2

    公开(公告)日：2014-12-09

    申请号：US13648557

    申请日：2012-10-10

    Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

    Inventor： Tao Tao Huang ,  Meng Wang

    IPC: H03K4/02 ,  H03K4/06

    CPC classification number: H03K4/502

    Abstract: A fully integrated ramp generator circuit includes a first current generator that sources current to first capacitor through a first transistor that is gate controlled by the complement of a periodic signal. The ramping voltage stored on the first capacitor is buffered to an output node as a ramp output signal. A second transistor couples the output node to the first current generator and is gate controlled by the periodic signal. The periodic signal is generated at the output of a flip-flop that receives an input clock signal and reset signal. The reset signal is generated by a comparator circuit operable to compare the voltage on a second capacitor to a reference. The second capacitor is charged by a second current source and discharged by a third transistor that is gate controlled by the periodic signal.

    Abstract translation: 完全集成的斜坡发生器电路包括第一电流发生器，其通过由周期信号的补码门控制的第一晶体管向第一电容器供电。 存储在第一电容器上的斜坡电压作为斜坡输出信号被缓冲到输出节点。 第二晶体管将输出节点耦合到第一电流发生器，并由周期信号进行栅极控制。 周期性信号在接收输入时钟信号和复位信号的触发器的输出端产生。 复位信号由比较器电路产生，比较器电路可操作以将第二电容器上的电压与参考电压进行比较。 第二电容器由第二电流源充电，并由被周期信号门控制的第三晶体管放电。

    CURRENT SLOPE CONTROL METHOD AND APPARATUS FOR POWER DRIVER CIRCUIT APPLICATION
    18.
    发明申请
    CURRENT SLOPE CONTROL METHOD AND APPARATUS FOR POWER DRIVER CIRCUIT APPLICATION 有权
    电流斜率控制方法和电源驱动电路应用的设备

    公开(公告)号：US20130300394A1

    公开(公告)日：2013-11-14

    申请号：US13875651

    申请日：2013-05-02

    Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD.

    Inventor： Meng Wang ,  Tao Tao Huang

    IPC: H02M3/158

    CPC classification number: G09G3/3225 ,  G09G3/20 ,  G09G3/3208 ,  G09G3/3648 ,  G09G2300/0842 ,  G09G2310/0259 ,  G09G2310/0291 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/025 ,  G09G2330/028 ,  H02M3/158 ,  H03K5/12 ,  H03K17/04123 ,  H03K17/687 ,  H03K2217/0063 ,  H03K2217/0072

    Abstract: A low side driver includes a first transistor coupled in series with a second transistor at a low side voltage node for a load. A capacitance is configured to store a voltage and a voltage buffer circuit has an input coupled to receive the voltage stored by the capacitance and an output coupled to drive a control node of the second transistor with the stored voltage. A current source supplies current through a switch to the capacitance and the input of the voltage buffer circuit. The switch is configured to be actuated by an oscillating enable signal so as to cyclically source current from the current source to the capacitance and cause a stepped increase in the stored voltage which is applied by the buffer circuit to the control node of the second transistor.

    Abstract translation: 低侧驱动器包括与用于负载的低侧电压节点与第二晶体管串联耦合的第一晶体管。 电容被配置为存储电压，并且电压缓冲器电路具有耦合以接收由电容存储的电压的输入和耦合以用所存储的电压驱动第二晶体管的控制节点的输出。 电流源通过开关将电流提供给电容和电压缓冲电路的输入。 该开关被配置为由振荡使能信号激励，以便将来自电流源的电流循环地引导到电容，并且使由缓冲电路施加到第二晶体管的控制节点的存储电压发生阶梯式增加。

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