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公开(公告)号：US08519777B2
公开(公告)日：2013-08-27
申请号：US13135468
申请日：2011-07-06
申请人： Jim Brown
发明人： Jim Brown
CPC分类号： H02M3/07 , H02M2003/071 , H02M2003/072 , H03F3/005 , H03F3/187 , H03F2200/03
摘要： Systems and methods to achieve a charge pump for generating from a single input supply voltage Vdd in three modes efficient output supply voltages having a value of 2×Vdd, ½ Vdd, and inverted Vdd. The charge pump requires 8 switches and one flying capacitor only.
摘要翻译： 实现电荷泵的系统和方法，用于从三个模式中的单个输入电源电压Vdd产生具有2×Vdd，½Vdd和反相Vdd的有效输出电源电压。 电荷泵只需8个开关和一个飞跨电容器。
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公开(公告)号：US20130154580A1
公开(公告)日：2013-06-20
申请号：US13807900
申请日：2010-07-01
申请人： Kanji Shimizu
发明人： Kanji Shimizu
IPC分类号： H02J7/00
CPC分类号： H02J7/0024 , H02M3/07 , H02M2003/072
摘要： It is possible to prevent overcurrent from flowing at the time of initially charging thin-film capacitors with an inexpensive configuration. There are provided a direct current power supply DC supplying direct current to plural thin-film capacitors, resistors connected in series to the respective thin-film capacitors for limiting the current value of the direct current to be supplied from the direct current power supply DC to the thin-film capacitors, and series-parallel system changeover switches SW connected in series to the respective thin-film capacitors and having one contacts establishing, when selected, a series connection short-circuiting both ends of each thin-film capacitor and other contacts establishing, when selected, parallel connections supplying direct current through the resistors to the thin-film capacitors. A charging operation switch SW1 and a discharge operation switch SW2 are switched so that, at the time of charging, current supplied to the thin-film capacitors C is suppressed by the resistors by the parallel connections, and, at the time of discharging, discharging is permitted by the series connection, irrespective of the resistors.
摘要翻译： 可以以廉价的结构来防止在最初对薄膜电容器充电时的过电流流动。 提供直流电源直流电流供应直流电流到多个薄膜电容器，电阻器连接到相应的薄膜电容器，用于限制从直流电源DC提供的直流电流的电流值到 薄膜电容器和串联并联系统转换开关SW串联连接到各个薄膜电容器，并且当选择时，具有一个触点建立短路两个薄膜电容器和其它触点的串联连接 当选择时，建立并联连接，通过电阻将直流电流提供给薄膜电容器。 充电操作开关SW1和放电操作开关SW2被切换，使得在充电时，通过并联连接阻止由电阻器提供给薄膜电容器C的电流，并且在放电时，放电 由串联连接允许，无论电阻如何。
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公开(公告)号：US08351228B2
公开(公告)日：2013-01-08
申请号：US12679568
申请日：2008-09-17
申请人： Makoto Izumi
发明人： Makoto Izumi
IPC分类号： H02M3/18
CPC分类号： H02M3/07 , H02M2003/072
摘要： A voltage conversion circuit with reduced power consumption can be used for a power supply device (100). The power supply device (100) is composed of a power supply circuit (3) including an alternating power supply (1) and a rectifying circuit (2); a voltage conversion circuit (6) including a plurality of capacitors (4) and a switching circuit (5); and a load circuit (7). The voltage conversion circuit (6) is connected between the power supply circuit (3) and the load circuit (7). The alternating power supply (1) is connected to a switching circuit (5) of the voltage conversion circuit (6) without having the rectifying circuit (2) in between. An output voltage (potential fluctuation: a potential difference generated in the signal waveform of the power supply voltage) from the alternating power supply (1) prior to rectification is applied to the switching circuit (5). The alternating power supply (1) is also connected to the capacitors (4) through the rectifying circuit (2), and output power after rectification is applied to the capacitors. The voltage conversion circuit (6) supplies the load circuit (7) with the power supply voltage inputted from the power supply circuit (3) by increasing or reducing the voltage.
摘要翻译： 具有降低功耗的电压转换电路可以用于电源装置（100）。 电源装置（100）由包括交流电源（1）和整流电路（2）的电源电路（3）构成。 包括多个电容器（4）和开关电路（5）的电压转换电路（6）; 和负载电路（7）。 电压转换电路（6）连接在电源电路（3）和负载电路（7）之间。 交流电源（1）连接到电压转换电路（6）的开关电路（5），而不具有整流电路（2）。 交换电源（1）将整流前的输出电压（电位变动：电源电压信号波形中产生的电位差）施加到开关电路5。 交流电源（1）也通过整流电路（2）连接到电容器（4），整流后的输出电源施加到电容器。 电压转换电路（6）通过增加或减少电压向负载电路（7）提供从电源电路（3）输入的电源电压。
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公开(公告)号：US08198935B2
公开(公告)日：2012-06-12
申请号：US13098739
申请日：2011-05-02
申请人： Wai Lim Ngai
发明人： Wai Lim Ngai
IPC分类号： H03K17/687
CPC分类号： H02M3/07 , G01R15/06 , H02M2003/072
摘要： Methods and apparatus for capacitive voltage division are provided, an example apparatus having an input and an output and including a first switched capacitor circuit. In some embodiments, the capacitive voltage divider includes first and second MOSFETs. A first capacitor is coupled between the drain of the first MOSFET and the input to the capacitive voltage divider. A first circuit coupled to the drain of the first MOSFET is configured to pull down the drain of the first MOSFET and thus apply a reverse bias to a first junction diode internal to the first MOSFET between the drain and the bulk of the first MOSFET. A second capacitor is coupled between the source of the first MOSFET and the drain of the second MOSFET. A second circuit is configured to reverse bias a second junction diode between the drain and bulk of the second MOSFET.
摘要翻译： 提供了用于电容分压的方法和装置，具有输入和输出并且包括第一开关电容器电路的示例装置。 在一些实施例中，电容分压器包括第一和第二MOSFET。 第一电容器耦合在第一MOSFET的漏极和电容分压器的输入端之间。 耦合到第一MOSFET的漏极的第一电路被配置为下拉第一MOSFET的漏极，并且因此将第一MOSFET的内部的第一结二极管施加到漏极和第一MOSFET的主体之间的反向偏置。 第二电容器耦合在第一MOSFET的源极和第二MOSFET的漏极之间。 第二电路被配置为在第二MOSFET的漏极和体积之间反向偏置第二结二极管。
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公开(公告)号：US07990742B2
公开(公告)日：2011-08-02
申请号：US12000546
申请日：2007-12-13
申请人： John P. Lesso
发明人： John P. Lesso
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , H02M2003/072
摘要： A charge pump circuit, and associated method and apparatuses, for providing a split-rail voltage supply, the circuit having a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of said states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage and centered on the voltage at the common terminal.
摘要翻译： 一种电荷泵电路及相关的方法和装置，用于提供分路电压电源，所述电路具有可在多个不同状态下操作的开关网络和用于以所述状态的顺序操作所述开关的控制器 以将正和负输出电压一起产生，跨越大约等于输入电压的电压并以公共端的电压为中心。
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公开(公告)号：US07989988B2
公开(公告)日：2011-08-02
申请号：US12306500
申请日：2006-06-30
申请人： Kazuyoshi Takai , Takahiro Yashita , Kikuo Kato , Kazuaki Kubo
发明人： Kazuyoshi Takai , Takahiro Yashita , Kikuo Kato , Kazuaki Kubo
CPC分类号： H03K17/6874 , H02M3/07 , H02M2003/072 , H03K17/063 , H03K17/102 , H03K17/693 , Y10T307/625 , Y10T307/76
摘要： In a power phase period when in normal operation, switch portions SW2H and SW2L and switch portions SW3H and SW3L are turned ON, respectively, and switch portions SW1H and SW1L are turned OFF. And floating power supply is provided from an electrostatic capacitance element CS to buses A and B, a floating control circuit 4, a transmitter circuit 5, and a receiver circuit 6, respectively. In a data phase period, the switch portions SW1H and SW1L are turned ON, and the switch portions SW2H, SW2L, SW3H, and SW3L are turned OFF. By that manner, the electrostatic capacitance element CS is charged by the power supply of a battery B, and an electrostatic capacitance element CH provides the floating power supply to the floating control circuit 4, the transmitter circuit 5, and the receiver circuit 6, respectively. By this manner, a floating switch unit 7 in which the number of the switch portions is considerably reduced can be configured.
摘要翻译： 在通常动作的电力相位期间，开关部SW2H，SW2L和开关部SW3H，SW3L分别导通，开关部SW1H，SW1L分别断开。 并且浮动电源分别从静电电容元件CS提供给总线A和B，浮动控制电路4，发送器电路5和接收器电路6。 在数据相位期间，开关部分SW1H和SW1L导通，开关部分SW2H，SW2L，SW3H和SW3L截止。 通过这种方式，静电电容元件CS由电池B的电源充电，并且静电电容元件CH分别向浮动控制电路4，发送器电路5和接收器电路6提供浮动电源 。 通过这种方式，可以构成开关部分的数目明显减少的浮动开关单元7。
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公开(公告)号：US07764526B1
公开(公告)日：2010-07-27
申请号：US11758450
申请日：2007-06-05
申请人： Kun Xing , Shea Lynn Petricek
发明人： Kun Xing , Shea Lynn Petricek
CPC分类号： H02M3/07 , H02M2003/072
摘要： A hysteretic mode controller for controlling a capacitor voltage divider which has a flying capacitor. In one embodiment, the hysteretic mode controller includes an amplifier, a gain circuit and a hysteretic comparator circuit. The amplifier has an input for coupling to the flying capacitor and an output providing a fly voltage. The gain circuit has an input for receiving the input voltage and an output coupled to a reference node providing a reference voltage. The hysteretic comparator circuit has a first input coupled to the output of the amplifier, a second input receiving the reference voltage, and an output for providing a PWM signal to control the capacitor voltage divider. The fly voltage is compared to voltage limits of a hysteretic voltage window for switching the PWM signal. The switching frequency is increased with higher load current to maintain high efficiency.
摘要翻译： 用于控制具有飞溅电容器的电容器分压器的迟滞模式控制器。 在一个实施例中，迟滞模式控制器包括放大器，增益电路和迟滞比较器电路。 放大器具有用于耦合到飞跨电容器的输入端和提供飞电压的输出。 增益电路具有用于接收输入电压的输入和耦合到提供参考电压的参考节点的输出。 迟滞比较器电路具有耦合到放大器的输出的第一输入端，接收参考电压的第二输入端和用于提供PWM信号以控制电容器分压器的输出端。 将飞跃电压与用于切换PWM信号的迟滞电压窗口的电压极限进行比较。 开关频率随着负载电流的增加而增加，以保持高效率。
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公开(公告)号：US07626445B2
公开(公告)日：2009-12-01
申请号：US12000545
申请日：2007-12-13
申请人： John P. Lesso , John L. Pennock , Peter J. Frith
发明人： John P. Lesso , John L. Pennock , Peter J. Frith
CPC分类号： H02M3/07 , H02M2001/009 , H02M2003/071 , H02M2003/072
摘要： A dual mode charge-pump circuit and associated method and apparatuses for providing a plurality of output voltages, using a single flying capacitor, the circuit including a network of switches that is operable in a number of different states and a controller for operating said switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage and centered on the voltage at the common terminal, in a first mode and positive and negative output voltages each up to substantially the input voltage in a second mode.
摘要翻译： 一种双模式电荷泵电路及相关联的方法和装置，用于使用单个飞行电容器提供多个输出电压，所述电路包括可在多个不同状态下操作的开关网络和用于操作所述开关的控制器 状态的序列，以便在第一模式中产生正和负输出电压，所述正和负输出电压一起跨过大致等于输入电压的电压并且以公共端的电压为中心，并且每个输出电压基本上达到输入 电压在第二模式。
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公开(公告)号：US07602232B2
公开(公告)日：2009-10-13
申请号：US11746588
申请日：2007-05-09
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 3/4× 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。
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公开(公告)号：US07557641B2
公开(公告)日：2009-07-07
申请号：US11678048
申请日：2007-02-22
CPC分类号： H02M3/07 , H02M2003/072
摘要： A charge pump provides a multiplication factor of ⅔ 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 ⅔× 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。
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