Sawtooth oscillator
    1.
    发明授权
    Sawtooth oscillator 有权
    锯齿振荡器

    公开(公告)号:US08294496B2

    公开(公告)日:2012-10-23

    申请号:US13110881

    申请日:2011-05-18

    IPC分类号: H03K4/06

    CPC分类号: H03K4/502 H03K4/06

    摘要: A sawtooth generator circuit comprises a first triangular waveform generator with equal ramp up and ramp down rates and a second triangular waveform generator with equal ramp up and ramp down rates and which are equal to the ramp up and ramp down rates of the first triangular waveform generator. The first and second triangular waveform generators are controlled to be 180 degrees out of phase. A switching arrangement alternately switches the increasing or decreasing ramps of the first and second triangular waveform generators to an output of the sawtooth generator circuit.The invention provides a sawtooth generator circuit which is suitable for high frequency applications, with low current consumption and low ground bounce. A very fast falling edge can be obtained.

    摘要翻译: 锯齿波发生器电路包括具有相等斜升和斜降速率的第一三角波形发生器和具有相等斜升和斜降速率的第二三角波形发生器,其等于第一三角波形发生器的斜升和斜降速率 。 第一和第二三角波形发生器被控制为相位180度。 开关装置将第一和第二三角波形发生器的增加或减小的斜坡交替地切换到锯齿波发生器电路的输出。 本发明提供一种适用于高频应用的锯齿波发生器电路,具有低电流消耗和低地面反弹。 可以获得非常快的下降沿。

    SAWTOOTH OSCILLATOR
    2.
    发明申请
    SAWTOOTH OSCILLATOR 有权
    SAWTOOTH振荡器

    公开(公告)号:US20110285428A1

    公开(公告)日:2011-11-24

    申请号:US13110881

    申请日:2011-05-18

    IPC分类号: H03K4/06

    CPC分类号: H03K4/502 H03K4/06

    摘要: A sawtooth generator circuit comprises a first triangular waveform generator with equal ramp up and ramp down rates and a second triangular waveform generator with equal ramp up and ramp down rates and which are equal to the ramp up and ramp down rates of the first triangular waveform generator. The first and second triangular waveform generators are controlled to be 180 degrees out of phase. A switching arrangement alternately switches the increasing or decreasing ramps of the first and second triangular waveform generators to an output of the sawtooth generator circuit.The invention provides a sawtooth generator circuit which is suitable for high frequency applications, with low current consumption and low ground bounce. A very fast falling edge can be obtained.

    摘要翻译: 锯齿波发生器电路包括具有相等斜升和斜降速率的第一三角波形发生器和具有相等斜升和斜降速率的第二三角波形发生器,其等于第一三角波形发生器的斜升和斜降速率 。 第一和第二三角波形发生器被控制为相位180度。 开关装置将第一和第二三角波形发生器的增加或减小的斜坡交替地切换到锯齿波发生器电路的输出。 本发明提供一种适用于高频应用的锯齿波发生器电路,具有低电流消耗和低地面反弹。 可以获得非常快的下降沿。

    POWER SUPPLY AND DC-DC-CONVERSION
    3.
    发明申请
    POWER SUPPLY AND DC-DC-CONVERSION 有权
    电源和DC-DC转换

    公开(公告)号:US20110050315A1

    公开(公告)日:2011-03-03

    申请号:US12858829

    申请日:2010-08-18

    IPC分类号: H03L5/00

    CPC分类号: H03K4/502 H02M3/156

    摘要: In an embodiment of a converter, a first oscillator provides switching signals for switching between charging and discharging of a capacitor, and a second oscillator is configured to add an offset voltage or a feedback-current-dependent voltage to a sawtooth waveform generated by the second oscillator switched in synchronism with the first oscillator.

    摘要翻译: 在转换器的实施例中,第一振荡器提供用于在电容器的充电和放电之间切换的开关信号,并且第二振荡器被配置为将补偿电压或与反馈电流相关的电压加到由第二 振荡器与第一个振荡器同步切换。

    Photovoltaic module monitoring and control
    5.
    发明授权
    Photovoltaic module monitoring and control 有权
    光伏组件监控

    公开(公告)号:US09269834B2

    公开(公告)日:2016-02-23

    申请号:US13537836

    申请日:2012-06-29

    摘要: In one embodiment, an apparatus includes a plurality of photovoltaic units having respective pairs of first and second power terminals connected in series. Each photovoltaic unit in the series includes a bypass switch connected in parallel with the photovoltaic current source of the photovoltaic unit. The bypass switch is configured to provide a bypass of the photovoltaic current source in response to a respective switch control signal. A control circuit determines electrical characteristics of the one or more of the plurality of photovoltaic units by operating the bypass switches of one or more of the photovoltaic units in an open state and operating the bypass switches of the other ones of the photovoltaic units in a closed state. Electrical characteristics exhibited by the series connection of the plurality of photovoltaic units are measured using a detection circuit.

    摘要翻译: 在一个实施例中,一种装置包括具有相互串联连接的各对第一和第二电力端子的多个光电单元。 该系列中的每个光伏单元包括与光电单元的光电流源并联连接的旁路开关。 旁路开关被配置为响应于相应的开关控制信号提供光伏电流源的旁路。 控制电路通过将处于打开状态的一个或多个光伏单元的旁路开关操作并且将另一个光伏单元的旁路开关操作在闭合状态中来确定多个光伏单元中的一个或多个的电特性 州。 使用检测电路测量多个光电单元的串联连接所呈现的电气特性。

    Power supply and DC-DC-conversion
    6.
    发明授权
    Power supply and DC-DC-conversion 有权
    电源和DC-DC转换

    公开(公告)号:US08686801B2

    公开(公告)日:2014-04-01

    申请号:US12858829

    申请日:2010-08-18

    IPC分类号: H03K3/26

    CPC分类号: H03K4/502 H02M3/156

    摘要: In an embodiment of a converter, a first oscillator provides switching signals for switching between charging and discharging of a capacitor, and a second oscillator is configured to add an offset voltage or a feedback-current-dependent voltage to a sawtooth waveform generated by the second oscillator switched in synchronism with the first oscillator.

    摘要翻译: 在转换器的实施例中,第一振荡器提供用于在电容器的充电和放电之间切换的开关信号,并且第二振荡器被配置为将补偿电压或与反馈电流相关的电压加到由第二 振荡器与第一个振荡器同步切换。

    PHOTOVOLTAIC MODULE MONITORING AND CONTROL
    7.
    发明申请
    PHOTOVOLTAIC MODULE MONITORING AND CONTROL 有权
    光伏模块监控与控制

    公开(公告)号:US20140001865A1

    公开(公告)日:2014-01-02

    申请号:US13537836

    申请日:2012-06-29

    IPC分类号: H02J1/00

    摘要: In one embodiment, an apparatus includes a plurality of photovoltaic units having respective pairs of first and second power terminals connected in series. Each photovoltaic unit in the series includes a bypass switch connected in parallel with the photovoltaic current source of the photovoltaic unit. The bypass switch is configured to provide a bypass of the photovoltaic current source in response to a respective switch control signal. A control circuit determines electrical characteristics of the one or more of the plurality of photovoltaic units by operating the bypass switches of one or more of the photovoltaic units in an open state and operating the bypass switches of the other ones of the photovoltaic units in a closed state. Electrical characteristics exhibited by the series connection of the plurality of photovoltaic units are measured using a detection circuit.

    摘要翻译: 在一个实施例中,一种装置包括具有相互串联连接的各对第一和第二电力端子的多个光电单元。 该系列中的每个光伏单元包括与光电单元的光电流源并联连接的旁路开关。 旁路开关被配置为响应于相应的开关控制信号提供光伏电流源的旁路。 控制电路通过将处于打开状态的一个或多个光伏单元的旁路开关操作并且将另一个光伏单元的旁路开关操作在闭合状态中来确定多个光伏单元中的一个或多个的电特性 州。 使用检测电路测量多个光电单元的串联连接所呈现的电气特性。