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公开(公告)号:US07834696B2
公开(公告)日:2010-11-16
申请号:US12062539
申请日:2008-04-04
IPC分类号: H03F3/45
CPC分类号: H03F3/45475 , H03F3/45179 , H03F3/45632 , H03F3/45928 , H03F2203/45008 , H03F2203/45082 , H03F2203/45138 , H03F2203/45366 , H03F2203/45424
摘要: This disclosure relates to a common mode regulation in multi stage differential amplifiers.
摘要翻译: 本公开涉及多级差分放大器中的共模调节。
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公开(公告)号:US20120019317A1
公开(公告)日:2012-01-26
申请号:US13267476
申请日:2011-10-06
IPC分类号: H03F1/00
CPC分类号: H03F3/45475 , H03F2203/45644
摘要: A self-oscillating driver circuit includes a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path includes a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range.
摘要翻译: 自振荡驱动器电路包括驱动器级,耦合到驱动器级的输入的前馈路径以及将驱动级的输出耦合到前馈路径的输入的反馈路径。 前馈路径包括被设计为有源滤波器的前馈滤波器。 为了防止驱动电路的振荡状态处于不期望的频率,建议监视前馈滤波器的内部状态变量,并且如果所监视的内部状态变量的值在预定义的值之外,则前馈滤波器被复位 范围。
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公开(公告)号:US07928800B2
公开(公告)日:2011-04-19
申请号:US12327739
申请日:2008-12-03
申请人: Fabio Ballarin , Alfonso D'Andretta , Martin Clara , Antonio Di Giandomenico , Dario Giotta , Andreas Wiesbauer
发明人: Fabio Ballarin , Alfonso D'Andretta , Martin Clara , Antonio Di Giandomenico , Dario Giotta , Andreas Wiesbauer
IPC分类号: H03F1/36
CPC分类号: H03F3/45475 , H03F3/45183 , H03F2203/45528
摘要: Systems and methods for implementing a programmable network for a multimode conditionally stable operational amplifier are disclosed.
摘要翻译: 公开了用于实现用于多模有条件稳定的运算放大器的可编程网络的系统和方法。
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公开(公告)号:US07084677B2
公开(公告)日:2006-08-01
申请号:US10788667
申请日:2004-02-27
申请人: Thomas Ferianz , Christian Fleischhacker , Dario Giotta , Rüdiger Koban , Thomas Pötscher , Andreas Wiesbauer
发明人: Thomas Ferianz , Christian Fleischhacker , Dario Giotta , Rüdiger Koban , Thomas Pötscher , Andreas Wiesbauer
IPC分类号: H03K3/00
CPC分类号: H04L25/0286 , H04L25/0266
摘要: The invention relates to a line driver arrangement for driving signals via at least one subscriber line, provided with: an input for injecting an input signal and having an output at which a signal which is to be driven via the subscriber line can be tapped off, a digital amplifier which produces a pulse-width-modulated signal on the output side from the input signal or from a signal derived from it, an analog amplifier, which produces an analog signal on the output side from the input signal or from a signal derived from it, with the outputs of the amplifiers being coupled such that the signal to be driven results from superimposition of the analog signal and the digital signal, with the gain of the analog amplifier being matched to the gain of the digital amplifier such that scatter and/or overshoot on the digital signal are at least reduced after the superimposition.
摘要翻译: 本发明涉及一种用于经由至少一个用户线驱动信号的线路驱动器装置,该线路驱动器装置具有:用于注入输入信号的输入端,并且具有能够通过用户线路驱动的信号的输出, 数字放大器,其在输入侧从输入信号或从其输出的信号产生脉宽调制信号,模拟放大器,其在输入侧从输入信号或从所导出的信号产生模拟信号 由此,放大器的输出被耦合,使得待驱动的信号由模拟信号和数字信号的叠加产生,模拟放大器的增益与数字放大器的增益匹配,使得散射和 /或数字信号上的过冲至少在叠加后减小。
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公开(公告)号:US20110121888A1
公开(公告)日:2011-05-26
申请号:US12623487
申请日:2009-11-23
申请人: Dario Giotta , Martin Clara
发明人: Dario Giotta , Martin Clara
IPC分类号: G05F1/10
CPC分类号: G05F3/262
摘要: Implementations related to compensating for on-current leakage associated with current source arrangements are disclosed. An implementation may be provided that includes a replicated current mirror output stage. A circuit may be disposed between a current mirror output stage and the replicated current mirror output stage. The circuit may be implemented to drive a voltage associated with the current mirror output stage to a voltage level associated with the replicated current mirror output stage. A current may be supplied by the circuit to drive the voltage associated with the current mirror output stage. In one implementation, the current is substantially equal to an on-current leakage associated with the current mirror output stage.
摘要翻译: 公开了与补偿与电流源装置相关的漏电流相关的实现。 可以提供包括复制的电流镜输出级的实现。 电路可以设置在电流镜输出级和复制电流镜输出级之间。 电路可以被实现为将与电流镜输出级相关联的电压驱动到与复制的电流镜输出级相关联的电压电平。 可以由电路提供电流以驱动与电流镜输出级相关联的电压。 在一个实施方案中,电流基本上等于与电流镜输出级相关联的导通电流泄漏。
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公开(公告)号:US20100134190A1
公开(公告)日:2010-06-03
申请号:US12327739
申请日:2008-12-03
申请人: Fabio Ballarin , Alfonso D'Andretta , Martin Clara , Antonio Di Giandomenico , Dario Giotta , Andreas Wiesbauer
发明人: Fabio Ballarin , Alfonso D'Andretta , Martin Clara , Antonio Di Giandomenico , Dario Giotta , Andreas Wiesbauer
CPC分类号: H03F3/45475 , H03F3/45183 , H03F2203/45528
摘要: Systems and methods for implementing a programmable network for a multimode conditionally stable operational amplifier are disclosed.
摘要翻译: 公开了用于实现用于多模有条件稳定的运算放大器的可编程网络的系统和方法。
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公开(公告)号:US08791755B2
公开(公告)日:2014-07-29
申请号:US13267476
申请日:2011-10-06
IPC分类号: H03F3/38
CPC分类号: H03F3/45475 , H03F2203/45644
摘要: A self-oscillating driver circuit includes a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path includes a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range.
摘要翻译: 自振荡驱动器电路包括驱动器级,耦合到驱动器级的输入的前馈路径以及将驱动级的输出耦合到前馈路径的输入的反馈路径。 前馈路径包括被设计为有源滤波器的前馈滤波器。 为了防止驱动电路的振荡状态处于不期望的频率,建议监视前馈滤波器的内部状态变量,并且如果所监视的内部状态变量的值在预定义的值之外,则前馈滤波器被复位 范围。
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公开(公告)号:US08063697B2
公开(公告)日:2011-11-22
申请号:US11512706
申请日:2006-08-30
CPC分类号: H03F3/45475 , H03F2203/45644
摘要: A self-oscillating driver circuit comprises a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path comprises a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range.
摘要翻译: 自振荡驱动器电路包括驱动器级,耦合到驱动器级的输入的前馈路径以及将驱动器级的输出耦合到前馈路径的输入的反馈路径。 前馈路径包括被设计为有源滤波器的前馈滤波器。 为了防止驱动电路的振荡状态处于不期望的频率,建议监视前馈滤波器的内部状态变量,并且如果所监视的内部状态变量的值在预定义的值之外,则前馈滤波器被复位 范围。
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公开(公告)号:US20070069814A1
公开(公告)日:2007-03-29
申请号:US11512706
申请日:2006-08-30
IPC分类号: H03F3/217
CPC分类号: H03F3/45475 , H03F2203/45644
摘要: A self-oscillating driver circuit comprises a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path comprises a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range.
摘要翻译: 自振荡驱动器电路包括驱动器级,耦合到驱动器级的输入的前馈路径以及将驱动器级的输出耦合到前馈路径的输入的反馈路径。 前馈路径包括被设计为有源滤波器的前馈滤波器。 为了防止驱动电路的振荡状态处于不期望的频率,建议监视前馈滤波器的内部状态变量,并且如果所监视的内部状态变量的值在预定义的值之外,则前馈滤波器被复位 范围。
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