Split varactor array with improved matching and varactor switching scheme
    2.
    发明授权
    Split varactor array with improved matching and varactor switching scheme 有权
    具有改进的匹配和变容二极管切换方案的分裂变容二极管阵列

    公开(公告)号:US08779867B2

    公开(公告)日:2014-07-15

    申请号:US13281871

    申请日:2011-10-26

    Abstract: One embodiment of the present invention relates to a digital controlled oscillator. The oscillator includes an oscillator circuit, a varactor array, and a control circuit. The oscillator circuit receives a control word and a signal and generates an oscillator clock signal from the signal at a frequency selected by the control word. The varactor array has a first array of varactor cells having incremental capacitance values and a second array of varactor cells having equal capacitance values. The split varactor array provides a capacitance value. A control circuit is coupled to the oscillator circuit and controls the split varactor array according to the control word. The control circuit sets varactor cells of the split varactor array on or off.

    Abstract translation: 本发明的一个实施例涉及数字控制振荡器。 振荡器包括振荡电路,变容二极管阵列和控制电路。 振荡器电路接收控制字和信号,并从控制字选择的频率的信号产生振荡器时钟信号。 变容二极管阵列具有具有增量电容值的变容二极管单元的第一阵列和具有相等电容值的变容二极管单元的第二阵列。 拆分变容二极管阵列提供电容值。 控制电路耦合到振荡器电路,并根据控制字控制分离变容二极管阵列。 控制电路设置分离变容二极管阵列的变容二极管电池。

    Relaxation oscillator having a supply voltage independent output frequency
    3.
    发明授权
    Relaxation oscillator having a supply voltage independent output frequency 有权
    放电振荡器具有电源电压独立的输出频率

    公开(公告)号:US08742858B2

    公开(公告)日:2014-06-03

    申请号:US13016761

    申请日:2011-01-28

    CPC classification number: H03K3/011 H03K3/0231 H03K4/501

    Abstract: Techniques and architectures corresponding to relaxation oscillators having output frequencies that are supply voltage independent are described. In a particular embodiment, an apparatus includes a relaxation oscillator having one or more capacitors and a compensation current circuit coupled to the relaxation oscillator. The compensation current circuit is configured to regulate current provided to the one or more capacitors of the relaxation oscillator in response to changes in a supply voltage provided to the compensation current circuit and to the relaxation oscillator.

    Abstract translation: 描述了对应于具有电源电压独立的输出频率的松弛振荡器的技术和架构。 在特定实施例中,一种装置包括具有一个或多个电容器的拉伸振荡器和耦合到张弛振荡器的补偿电流电路。 补偿电流电路被配置为响应于提供给补偿电流电路和张弛振荡器的电源电压的变化来调节提供给张弛振荡器的一个或多个电容器的电流。

    RELAXATION OSCILLATOR HAVING A SUPPLY VOLTAGE INDEPENDENT OUTPUT FREQUENCY
    4.
    发明申请
    RELAXATION OSCILLATOR HAVING A SUPPLY VOLTAGE INDEPENDENT OUTPUT FREQUENCY 有权
    具有供电电压独立输出频率的松弛振荡器

    公开(公告)号:US20120194279A1

    公开(公告)日:2012-08-02

    申请号:US13016761

    申请日:2011-01-28

    CPC classification number: H03K3/011 H03K3/0231 H03K4/501

    Abstract: Techniques and architectures corresponding to relaxation oscillators having output frequencies that are supply voltage independent are described. In a particular embodiment, an apparatus includes a relaxation oscillator having one or more capacitors and a compensation current circuit coupled to the relaxation oscillator. The compensation current circuit is configured to regulate current provided to the one or more capacitors of the relaxation oscillator in response to changes in a supply voltage provided to the compensation current circuit and to the relaxation oscillator.

    Abstract translation: 描述了对应于具有电源电压独立的输出频率的松弛振荡器的技术和架构。 在特定实施例中,一种装置包括具有一个或多个电容器的拉伸振荡器和耦合到张弛振荡器的补偿电流电路。 补偿电流电路被配置为响应于提供给补偿电流电路和张弛振荡器的电源电压的变化来调节提供给张弛振荡器的一个或多个电容器的电流。

    Split Varactor Array with Improved Matching and Varactor Switching Scheme
    5.
    发明申请
    Split Varactor Array with Improved Matching and Varactor Switching Scheme 有权
    具有改进的匹配和变容二极管切换方案的分裂变容二极管阵列

    公开(公告)号:US20130107978A1

    公开(公告)日:2013-05-02

    申请号:US13281871

    申请日:2011-10-26

    Abstract: One embodiment of the present invention relates to a digital controlled oscillator. The oscillator includes an oscillator circuit, a varactor array, and a control circuit. The oscillator circuit receives a control word and a signal and generates an oscillator clock signal from the signal at a frequency selected by the control word. The varactor array has a first array of varactor cells having incremental capacitance values and a second array of varactor cells having equal capacitance values. The split varactor array provides a capacitance value. A control circuit is coupled to the oscillator circuit and controls the split varactor array according to the control word. The control circuit sets varactor cells of the split varactor array on or off.

    Abstract translation: 本发明的一个实施例涉及数字控制振荡器。 振荡器包括振荡电路,变容二极管阵列和控制电路。 振荡器电路接收控制字和信号,并从控制字选择的频率的信号产生振荡器时钟信号。 变容二极管阵列具有具有增量电容值的变容二极管单元的第一阵列和具有相等电容值的变容二极管单元的第二阵列。 拆分变容二极管阵列提供电容值。 控制电路耦合到振荡器电路,并根据控制字控制分离变容二极管阵列。 控制电路设置分离变容二极管阵列的变容二极管电池。

    LDO with distributed output device
    7.
    发明授权
    LDO with distributed output device 有权
    LDO具有分布式输出设备

    公开(公告)号:US08217635B2

    公开(公告)日:2012-07-10

    申请号:US12418479

    申请日:2009-04-03

    CPC classification number: H03G1/0005 H03K3/0315 H03K3/354 Y10T307/406

    Abstract: In one implementation, an apparatus includes a first input terminal configured to receive a bias voltage, the bias voltage received from a low-dropout voltage regulator (LDO) error amplifier, and a second input terminal configured to receive a supply voltage; a first output terminal configured to supply a feedback voltage, the feedback voltage supplied to the LDO error amplifier, and a second output terminal configured to supply regulated power to an associated load; a regulating portion configured to regulate power supplied to the associated load; and a switching portion configured to enable or disable the load from receiving the regulated power.

    Abstract translation: 在一个实施方式中,一种装置包括:第一输入端子,被配置为接收偏置电压,从低压降稳压器(LDO)误差放大器接收的偏置电压和被配置为接收电源电压的第二输入端子; 第一输出端子,被配置为提供反馈电压,提供给LDO误差放大器的反馈电压以及被配置为向相关联的负载提供调节电力的第二输出端子; 调节部,被配置为调节供应给相关联的负载的电力; 以及开关部,被配置为使负载能够接收所述调节功率。

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