Charge pump start up circuit and method thereof
    1.
    发明授权
    Charge pump start up circuit and method thereof 有权
    电荷泵启动电路及其方法

    公开(公告)号:US07489182B2

    公开(公告)日:2009-02-10

    申请号:US11749872

    申请日:2007-05-17

    IPC分类号: G05F1/10

    CPC分类号: G11C5/145

    摘要: The present invention discloses a charge pump start up circuit comprising: a start up transistor having one end which is electrically connected with a voltage supply source, and another end which is electrically connected to a voltage node; and a charge pump circuit having an input which is electrically connected with the voltage node, and an output which is electrically with the gate of the start up transistor.

    摘要翻译: 本发明公开了一种电荷泵起动电路,包括:起动晶体管,其一端与电压源电连接,另一端电连接到电压节点; 以及具有与电压节点电连接的输入的电荷泵电路,以及与启动晶体管的栅极电连接的输出。

    Charge Pump Start up Circuit and Method Thereof
    2.
    发明申请
    Charge Pump Start up Circuit and Method Thereof 有权
    电荷泵启动电路及其方法

    公开(公告)号:US20080284503A1

    公开(公告)日:2008-11-20

    申请号:US11749872

    申请日:2007-05-17

    IPC分类号: G11C5/14

    CPC分类号: G11C5/145

    摘要: The present invention discloses a charge pump start up circuit comprising: a start up transistor having one end which is electrically connected with a voltage supply source, and another end which is electrically connected to a voltage node; and a charge pump circuit having an input which is electrically connected with the voltage node, and an output which is electrically with the gate of the start up transistor.

    摘要翻译: 本发明公开了一种电荷泵起动电路,包括:起动晶体管,其一端与电压源电连接,另一端电连接到电压节点; 以及具有与电压节点电连接的输入的电荷泵电路,以及与启动晶体管的栅极电连接的输出。

    Noise-resistant pulse width modulator
    3.
    发明授权
    Noise-resistant pulse width modulator 有权
    抗噪声脉宽调制器

    公开(公告)号:US06969980B1

    公开(公告)日:2005-11-29

    申请号:US10850164

    申请日:2004-05-21

    IPC分类号: G05F1/40 G05F1/44 H02M1/08

    CPC分类号: H02M1/08

    摘要: A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.

    摘要翻译: 脉冲宽度调制器包括放大器模块,比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号,并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号,并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间,并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此,反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。

    Feedback circuit and control method for an isolated power converter
    4.
    发明授权
    Feedback circuit and control method for an isolated power converter 有权
    隔离电源转换器的反馈电路和控制方法

    公开(公告)号:US08503196B2

    公开(公告)日:2013-08-06

    申请号:US12838988

    申请日:2010-07-19

    IPC分类号: H02M3/335 H02M1/36

    CPC分类号: H02M3/33523

    摘要: A feedback circuit for an isolated power converter includes an opto-coupler and a reversed polarity regulator. The opto-coupler provides a current related to an output voltage of the isolated power converter. When the isolated power converter enters light load, the output voltage rises and the reversed polarity regulator reduces the current to decrease the power consumption and thus improve the light load efficiency of the isolated power converter.

    摘要翻译: 用于隔离电力转换器的反馈电路包括光耦合器和反极性调节器。 光耦合器提供与隔离功率转换器的输出电压相关的电流。 当隔离电源转换器进入轻负载时,输出电压升高,反极性调节器降低电流以降低功耗,从而提高隔离电源转换器的轻负载效率。

    NOISE-RESISTANT PULSE WIDTH MODULATOR
    5.
    发明申请
    NOISE-RESISTANT PULSE WIDTH MODULATOR 有权
    抗噪声脉宽调制器

    公开(公告)号:US20050258813A1

    公开(公告)日:2005-11-24

    申请号:US10850164

    申请日:2004-05-21

    IPC分类号: G05F1/40 G05F1/44 H02M1/08

    CPC分类号: H02M1/08

    摘要: A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.

    摘要翻译: 脉冲宽度调制器包括放大器模块,比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号,并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号,并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间,并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此,反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。

    Control circuit and method for a DC-to-DC converter to improve transient response thereof
    7.
    发明授权
    Control circuit and method for a DC-to-DC converter to improve transient response thereof 有权
    用于DC-DC转换器的控制电路和方法,以改善其瞬态响应

    公开(公告)号:US07701190B2

    公开(公告)日:2010-04-20

    申请号:US11657003

    申请日:2007-01-24

    IPC分类号: G05F1/00

    CPC分类号: H02M3/1584

    摘要: For a DC-to-DC converter including a plurality of channels for converting an input voltage to an output voltage, a control circuit comprises a load transient detector to detect the output voltage to provide a quick response signal. In a load transient, the quick response signal triggers a quick transient response period to increase the operational frequency of the converter.

    摘要翻译: 对于包括用于将输入电压转换为输出电压的多个通道的DC-DC转换器,控制电路包括检测输出电压以提供快速响应信号的负载瞬变检测器。 在负载瞬变中,快速响应信号触发快速的瞬态响应周期以增加转换器的工作频率。

    Single-chip common-drain JFET device and its applications

    公开(公告)号:US20090237062A1

    公开(公告)日:2009-09-24

    申请号:US12385721

    申请日:2009-04-17

    IPC分类号: G05F3/24

    摘要: A single-chip common-drain JFET device comprises a drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and therefore improving the performance and reducing the package cost. The single-chip common-drain JFET device may be applied in buck converter, boost converter, inverting converter, switch, and two-step DC-to-DC converter to improve their performance and efficiency. Alternative single-chip common-drain JFET devices are also provided for current sense or proportional current generation.

    Single-chip common-drain JFET device and its applications

    公开(公告)号:US20090206922A1

    公开(公告)日:2009-08-20

    申请号:US12385718

    申请日:2009-04-17

    IPC分类号: G05F3/02

    摘要: A single-chip common-drain JFET device comprises a drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and therefore improving the performance and reducing the package cost. The single-chip common-drain JFET device may be applied in buck converter, boost converter, inverting converter, switch, and two-step DC-to-DC converter to improve their performance and efficiency. Alternative single-chip common-drain JFET devices are also provided for current sense or proportional current generation.

    Single-chip common-drain JFET device and its applications

    公开(公告)号:US20090201078A1

    公开(公告)日:2009-08-13

    申请号:US12385719

    申请日:2009-04-17

    IPC分类号: G05F3/02

    摘要: A single-chip common-drain JFET device comprises a drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and therefore improving the performance and reducing the package cost. The single-chip common-drain JFET device may be applied in buck converter, boost converter, inverting converter, switch, and two-step DC-to-DC converter to improve their performance and efficiency. Alternative single-chip common-drain JFET devices are also provided for current sense or proportional current generation.