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1.发明授权Circuit and method for a fully integrated switched-capacitor step-down power converter 有权一种完全集成的开关电容降压功率转换器的电路和方法公开(公告)号：US07907429B2
公开(公告)日：2011-03-15
申请号：US11967714
申请日：2007-12-31
申请人： Yogesh K. Ramadass , Ayman A. Fayed , Baher Haroun
发明人： Yogesh K. Ramadass , Ayman A. Fayed , Baher Haroun
IPC分类号： H02M3/18
CPC分类号： H02M3/1584 , H02M3/07 , H02M2003/072
摘要： A circuit and method for providing a fully integrated DC-DC converter using on-chip switched capacitors is disclosed. A switched capacitor matrix is coupled as a digitally controlled transfer capacitor. A pair of non-overlapping, fixed frequency clock signals is provided to a switched capacitor circuit including the switched capacitor matrix and a load capacitor coupled to the output terminal. A DC input voltage supply is provided. A hysteretic feedback loop is used to control the voltage at the output as a stepped-down voltage from the input by digitally modulating the transfer capacitor using switches in the switch matrix to couple more, or fewer, transfer capacitors to the output terminal during a clock cycle. A coarse and a fine adjustment circuit are provided to improve the regulation during rapid changes in load power. A method of operating the regulator is disclosed.
摘要翻译： 公开了一种使用片上开关电容器提供完全集成的DC-DC转换器的电路和方法。 开关电容矩阵作为数字传输电容耦合。 一对不重叠的固定频率时钟信号被提供给包括开关电容矩阵的开关电容器电路和耦合到输出端的负载电容器。 提供一个直流输入电压源。 迟滞反馈环路用于通过使用开关矩阵中的开关对转换电容器进行数字调制来控制输出端的电压作为降压电压，以在时钟期间将更多或更少的传输电容器耦合到输出端子 周期。 提供粗调和微调电路，以改善负载功率快速变化时的调节。 公开了一种操作调节器的方法。
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2.发明申请Circuit and Method for a Fully Integrated Switched-Capacitor Step-Down Power Converter 有权全集成开关电容降压型电源转换器的电路和方法公开(公告)号：US20090072800A1
公开(公告)日：2009-03-19
申请号：US11967714
申请日：2007-12-31
申请人： Yogesh K. Ramadass , Ayman A. Fayed , Baher Haroun
发明人： Yogesh K. Ramadass , Ayman A. Fayed , Baher Haroun
CPC分类号： H02M3/1584 , H02M3/07 , H02M2003/072
摘要： A circuit and method for providing a fully integrated DC-DC converter using on-chip switched capacitors is disclosed. A switched capacitor matrix is coupled as a digitally controlled transfer capacitor. A pair of non-overlapping, fixed frequency clock signals is provided to a switched capacitor circuit including the switched capacitor matrix and a load capacitor coupled to the output terminal. A DC input voltage supply is provided. A hysteretic feedback loop is used to control the voltage at the output as a stepped-down voltage from the input by digitally modulating the transfer capacitor using switches in the switch matrix to couple more, or fewer, transfer capacitors to the output terminal during a clock cycle. A coarse and a fine adjustment circuit are provided to improve the regulation during rapid changes in load power. A method of operating the regulator is disclosed.
摘要翻译： 公开了一种使用片上开关电容器提供完全集成的DC-DC转换器的电路和方法。 开关电容矩阵作为数字传输电容耦合。 一对不重叠的固定频率时钟信号被提供给包括开关电容矩阵的开关电容器电路和耦合到输出端的负载电容器。 提供一个直流输入电压源。 迟滞反馈环路用于通过使用开关矩阵中的开关对转换电容器进行数字调制来控制输出端的电压作为降压电压，以在时钟期间将更多或更少的传输电容器耦合到输出端子 周期。 提供粗调和微调电路，以改善负载功率快速变化时的调节。 公开了一种操作调节器的方法。
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3.发明申请MAXIMUM POWER POINT TRACKING CIRCUIT GENERIC TO A VARIETY OF ENERGY HARVESTER DEVICES 审中-公开最大功率点跟踪电路一般用于各种能量捕获器件公开(公告)号：US20130043858A1
公开(公告)日：2013-02-21
申请号：US13586557
申请日：2012-08-15
IPC分类号： G05F3/02
摘要： A maximum power point tracking circuit for an energy harvester device, the tracking circuit requiring nanoampere current in a standby mode, includes a maximum power point circuits utilizing a predetermined fraction of the open circuit input voltage to determine the maximum power point for energy harvester device. A circuit determines the predetermined fraction of the open circuit voltage of the energy harvester device. A sample and hold circuit measures and holds him the predetermined fraction of the open circuit voltage of the energy harvester device for use by the maximum power point circuit
摘要翻译： 用于能量采集装置的最大功率点跟踪电路，在待机模式下需要纳电流的跟踪电路包括利用开路输入电压的预定分数来确定能量收集装置的最大功率点的最大功率点电路。 电路确定能量采集装置的开路电压的预定分数。 采样和保持电路测量并保持能量采集设备的开路电压的预定分数，供最大功率点电路使用
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公开(公告)号：US20130043857A1
公开(公告)日：2013-02-21
申请号：US13586531
申请日：2012-08-15
IPC分类号： G05F3/02
摘要： A hysteretic converter includes an inductor coupled between a source of voltage and a switch node. A low side switch is coupled between the switch node and a reference voltage. A high side switch is coupled between the switch node and the output of the converter. A driver controls the low side and high side switches, wherein the low side switch is turned on until the input current rises to a predetermined set point, the predetermined setpoint can be adapted to input current from the source of voltage.
摘要翻译： 迟滞转换器包括耦合在电压源与开关节点之间的电感器。 低侧开关耦合在开关节点和参考电压之间。 高侧开关耦合在开关节点和转换器的输出端之间。 驱动器控制低侧和高侧开关，其中低侧开关导通，直到输入电流上升到预定的设定点，该预定设定点可适于从电压源输入电流。
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