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1. 发明申请

WO2008103835A3 FRACTIONAL CHARGE PUMP FOR STEP-DOWN DC-DC CONVERTER 审中-公开
标题翻译：用于降压DC-DC转换器的分体充电泵
公开(公告)号：WO2008103835A3
公开(公告)日：2008-10-16
申请号：PCT/US2008054596
申请日：2008-02-21
申请人： CATALYST SEMICONDUCTOR INC , GEORGESCU SORIN S , RUSSELL ANTHONY G , BARTHOLOMEUEZ CHRIS
发明人： GEORGESCU SORIN S , RUSSELL ANTHONY G , BARTHOLOMEUEZ CHRIS
IPC分类号： G05F1/10
CPC分类号： H02M3/07 , H02M2003/072
摘要： A charge pump provides a multiplication factor of 2/3 by using a three-phase mode of operation. In a first mode, first and second capacitors are charged from an input voltage while a third capacitor drives the output voltage based on stored charge in the third capacitor. In a second mode, the output terminal is connected to the common node of the first and second capacitors. In a third mode, the voltage potential across the second capacitor is subtracted from the sum of the input voltage and the voltage potential across the first capacitor to generate the output voltage. Operated in this manner, the first, second, and third capacitors will provide the desired 2/3x voltage multiplication. This relatively low multiplication factor can be beneficial in applications requiring 2.5V and 1.8V supplies for integrated circuits, particularly where the input voltage is provided by a lithium battery.
摘要翻译：电荷泵通过使用三相工作模式提供2/3的倍增系数。在第一模式中，第一和第二电容器从输入电压充电，而第三电容器基于第三电容器中存储的电荷来驱动输出电压。在第二模式中，输出端子连接到第一和第二电容器的公共节点。在第三模式中，从第一电容器两端的输入电压和电压电平之和减去第二电容器两端的电压电位，以产生输出电压。以这种方式操作，第一，第二和第三电容器将提供期望的2 / 3x电压倍增。这种相对较低的乘法因子对于集成电路需要2.5V和1.8V电源的应用可能是有益的，特别是在输入电压由锂电池提供的情况下。

2. 发明申请

WO2008103838A1 PROGRAMMABLE FRACTIONAL CHARGE PUMP FOR DC-DC CONVERTER 审中-公开
标题翻译：用于DC-DC转换器的可编程充电电荷泵
公开(公告)号：WO2008103838A1
公开(公告)日：2008-08-28
申请号：PCT/US2008/054601
申请日：2008-02-21
申请人： CATALYST SEMICONDUCTOR, INC. , GEORGESCU, Sorin S. , RUSSELL, Anthony G. , BARTHOLOMEUEZ, Chris
发明人： GEORGESCU, Sorin S. , RUSSELL, Anthony G. , BARTHOLOMEUEZ, Chris
IPC分类号： G05F1/10
CPC分类号： H02M3/07 , H02M2003/072
摘要： A charge pump provides a programmable multiplication factor for generating an output voltage. A first output voltage may be generated by connecting a first plurality of N capacitors in a first plurality of (N+1) configurations. A second output voltage may be generated by connecting a second plurality of M capacitors in a second plurality of M+1 configurations. The first plurality of N capacitors and the second plurality of M capacitors have one or more capacitors in common. The integers M and N may be equal, although this is not required. The first plurality of configurations is different than the second plurality of configurations, thereby providing different multiplication factors for the first and second pluralities of configurations. In one embodiment, the first plurality of (N+1) configurations results in an output voltage of about 3/4x an input voltage.
摘要翻译：电荷泵提供用于产生输出电压的可编程乘法因子。可以通过以第一多个（N + 1）配置连接第一多个N个电容器来产生第一输出电压。可以通过以第二多个M + 1配置的第二多个M个电容器连接来产生第二输出电压。第一多个N个电容器和第二个多个M个电容器具有共同的一个或多个电容器。整数M和N可以相等，尽管这不是必需的。第一多个配置与第二多个配置不同，从而为第一和第二多个配置提供不同的乘法因子。在一个实施例中，第一多个（N + 1）配置导致输入电压约为3 / 4x的输出电压。

3. 发明申请

WO2008103835A2 FRACTIONAL CHARGE PUMP FOR STEP-DOWN DC-DC CONVERTER 审中-公开
标题翻译：降压DC-DC转换器的分数电荷泵
公开(公告)号：WO2008103835A2
公开(公告)日：2008-08-28
申请号：PCT/US2008/054596
申请日：2008-02-21
申请人： CATALYST SEMICONDUCTOR, INC. , GEORGESCU, Sorin S. , RUSSELL, Anthony G. , BARTHOLOMEUEZ, Chris
发明人： GEORGESCU, Sorin S. , RUSSELL, Anthony G. , BARTHOLOMEUEZ, Chris
IPC分类号： H01L29/94
CPC分类号： H02M3/07 , H02M2003/072
摘要： A charge pump provides a multiplication factor of 2/3 by using a three-phase mode of operation. In a first mode, first and second capacitors are charged from an input voltage while a third capacitor drives the output voltage based on stored charge in the third capacitor. In a second mode, the output terminal is connected to the common node of the first and second capacitors. In a third mode, the voltage potential across the second capacitor is subtracted from the sum of the input voltage and the voltage potential across the first capacitor to generate the output voltage. Operated in this manner, the first, second, and third capacitors will provide the desired 2/3x voltage multiplication. This relatively low multiplication factor can be beneficial in applications requiring 2.5V and 1.8V supplies for integrated circuits, particularly where the input voltage is provided by a lithium battery.
摘要翻译：
电荷泵通过使用三相操作模式提供倍增因子2/3。在第一模式中，第一和第二电容器从输入电压充电，而第三电容器基于第三电容器中存储的电荷驱动输出电压。在第二模式中，输出端连接到第一和第二电容器的公共节点。在第三模式中，从输入电压和第一电容器上的电压电势之和中减去第二电容器两端的电压电势，以生成输出电压。以这种方式操作，第一，第二和第三电容器将提供期望的2 / 3x电压倍增。这种相对较低的倍增因数在需要2.5V和1.8V电源的集成电路应用中尤其有用，特别是在输入电压由锂电池提供的情况下更是如此。

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