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公开(公告)号：US5926059A
公开(公告)日：1999-07-20
申请号：US927391
申请日：1997-08-27
摘要： The invention relates to a voltage multiplier such as a charge pump circuit. The circuit is realized by a plurality of cascade connected voltage gain stages, each stage comprising a first and a second cell each receiving a pair of clock phase signals and comprising a pair of MOS transistors having first and second conduction terminals and a control terminal. These transistors have their first conduction terminals connected together and to a voltage reference; while the control terminals of each transistor are connected to the second conduction terminal of the other transistor of the same cell. Moreover, the second conduction terminal of the first transistor receives a first phase signal via a first coupling capacitor, and the second conduction terminal of the second transistor receives a second phase signals via a first pumping capacitor. Third and fourth cells are provided having the same structure as the first and the second cell. The third cell is coupled to the first cell by a series connection between their corresponding coupling capacitors and their corresponding pumping capacitors, respectively. The fourth cell is coupled to the second cell by a series connection between their corresponding coupling capacitors and by their corresponding pumping capacitors, respectively.
摘要翻译： 本发明涉及诸如电荷泵电路的电压倍增器。 电路由多个级联连接的电压增益级实现，每级包括第一和第二单元，每个单元接收一对时钟相位信号，并且包括一对具有第一和第二导通端子的MOS晶体管和控制端子。 这些晶体管的第一导通端子连接在一起并连接到电压基准上; 而每个晶体管的控制端子连接到同一单元的另一个晶体管的第二导电端子。 此外，第一晶体管的第二导通端子经由第一耦合电容器接收第一相位信号，并且第二晶体管的第二导通端子经由第一泵浦电容器接收第二相位信号。 提供具有与第一和第二电池相同结构的第三和第四电池。 第三单元通过其相应的耦合电容器和它们相应的泵浦电容器之间的串联连接耦合到第一单元。 第四单元通过它们对应的耦合电容器和它们相应的泵浦电容器之间的串联连接耦合到第二单元。
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公开(公告)号：US06815999B2
公开(公告)日：2004-11-09
申请号：US10023107
申请日：2001-12-17
申请人： Francesco M. Brani
发明人： Francesco M. Brani
IPC分类号： G05F110
CPC分类号： H02M3/073 , H02M2003/075
摘要： The invention relates to a device for controlling the phases of a charge pump 20, which device includes a phase generator 9 and a charge pump that is provided with a plurality of stages 1, 2. The invention also relates to a driver circuit for driving a display device with a charge pump and a phase generator, and to a display device with a driver circuit and a charge pump and a phase generator. In order to enable optimum adjustment of the delays between the individual phases P1 to P4 for the control of a charge pump and also to enable a response to disturbances that are caused by changes of the load or the temperature, signals 14 to 17 are fed back from the charge pump to a phase generator 9 so that the phases are started only when the appropriate conditions or states of the other phases exist.
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