公开(公告)号：US20150054571A1

公开(公告)日：2015-02-26

申请号：US14457525

申请日：2014-08-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazunori Watanabe ,  Tomoaki Atsumi

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M3/073

Abstract: Efficiency of a charge pump circuit is increased. The charge pump circuit includes serially connected fundamental circuits each including a diode-connected transistor and a capacitor. At least one transistor is provided with a back gate, and the back gate is connected to any node in the charge pump circuit. For example, the charge pump circuit is of a step-up type; in which case, if the transistor is an n-channel transistor, a back gate of the transistor in the last stage is connected to an output node of the charge pump circuit. Back gates of the transistors in the other stages are connected to an input node of the charge pump circuit. In this way, the voltage holding capability of the fundamental circuit in the last stage is increased, and the conversion efficiency can be increased because an increase in the threshold of the transistors in the other stages is prevented.

Abstract translation: 电荷泵电路的效率提高。 电荷泵电路包括串联连接的基本电路，每个基本电路包括二极管连接的晶体管和电容器。 至少一个晶体管设置有背栅极，并且后栅极连接到电荷泵电路中的任何节点。 例如，电荷泵电路是升压型的; 在这种情况下，如果晶体管是n沟道晶体管，则最后级的晶体管的背栅极连接到电荷泵电路的输出节点。 其他级的晶体管的背栅极连接到电荷泵电路的输入节点。 以这种方式，最后阶段的基本电路的电压保持能力增加，并且由于其它级的晶体管的阈值的增加被阻止，可以提高转换效率。

公开(公告)号：US20140368262A1

公开(公告)日：2014-12-18

申请号：US13921072

申请日：2013-06-18

Applicant: SanDisk Technologies Inc.

Inventor： Feng Pan

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M3/073

Abstract: A charge pump circuit using a voltage doubler-type of circuitry for generating an output voltage is described. An output generating stage uses a voltage double structure, except that the transistors in each leg are not cross-coupled to the other leg, but instead are controlled by an auxiliary section. The auxiliary section has a voltage doubler structure, but is not used to drive the load, but instead provides the gate voltage for the precharge section using the same levels as used for the corresponding transistors in the auxiliary section. This arrangement can be particularly advantageous for applications using low supply voltages to address self-loading effect due to loading. As the auxiliary section does not drive the load, its elements can be sized smaller. Additional improvement can be obtained by using separate clock drivers for the auxiliary section to address secondary self-loading effect due to loading.

Abstract translation: 描述了使用用于产生输出电压的倍压型电路的电荷泵电路。 输出发生级使用电压双重结构，除了每个支路中的晶体管不与另一支腿交叉耦合，而是由辅助部分控制。 辅助部分具有倍压器结构，但不用于驱动负载，而是使用与用于辅助部分中的相应晶体管的相同电平为预充电部分提供栅极电压。 对于使用低电源电压来解决由于负载引起的自负载效应的应用，这种布置特别有利。 由于辅助部分不驱动负载，其元件的尺寸可以更小。 通过使用辅助部分的单独的时钟驱动器来解决由于加载引起的二次自负载效应，可以获得额外的改进。

公开(公告)号：US20140354413A1

公开(公告)日：2014-12-04

申请号：US14344323

申请日：2011-09-13

Applicant: Pairote Sirinamarattana ,  Karn Opasjumruskit

Inventor： Pairote Sirinamarattana ,  Karn Opasjumruskit

IPC: G06K19/073 ,  G06K7/10 ,  G06K19/07

CPC classification number: G06K19/073 ,  G06K7/10009 ,  G06K19/0713 ,  G06K19/0723 ,  H02M3/073

Abstract: A system and method for improving the read distance of a transponder. The transponder comprises an antenna receiving energy from an interrogation signal, a resonant capacitor coupling with the antenna to form a tuned circuit, a charge-pump circuit to multiply voltage derived from the tuned circuit and a storage capacitor to store the voltage which has been multiplied by the charge-pump circuit.

Abstract translation: 一种用于提高应答器的读取距离的系统和方法。 应答器包括从询问信号接收能量的天线，与天线耦合以形成调谐电路的谐振电容器，将来自调谐电路的电压乘以电荷泵电路和存储电容器以存储已经被乘以的电压 通过电荷泵电路。

公开(公告)号：US20140321226A1

公开(公告)日：2014-10-30

申请号：US14324265

申请日：2014-07-07

Applicant: CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.

Inventor： Hong Beom PYEON

IPC: G11C11/4074 ,  G11C11/406

CPC classification number: G11C11/4074 ,  G11C5/145 ,  G11C11/406 ,  G11C11/4076 ,  G11C2211/4061 ,  G11C2211/4067 ,  G11C2211/4068 ,  H02M3/073 ,  H02M2003/077

Abstract: A dynamic random access memory (DRAM) is selectively operable in a sleep mode and another mode. The DRAM has data storage cells that are refreshed in the refresh mode. A boosted voltage is provided for the operation of the DRAM. A boosted voltage provider includes a group of charge pump circuits that are selectively activated by a pump control circuit based on a refresh time for refreshing data in the DRAM cells in the sleep mode.

Abstract translation: 动态随机存取存储器（DRAM）可选择性地在睡眠模式和另一模式下操作。 DRAM具有在刷新模式下刷新的数据存储单元。 为DRAM的操作提供升压电压。 升压电压提供器包括一组电荷泵电路，其基于用于在睡眠模式下刷新DRAM单元中的数据的刷新时间由泵控制电路选择性地激活。

公开(公告)号：US08854118B2

公开(公告)日：2014-10-07

申请号：US13593638

申请日：2012-08-24

Applicant: Chul-Woo Kim ,  Jungmoon Kim ,  Jihwan Kim

Inventor： Chul-Woo Kim ,  Jungmoon Kim ,  Jihwan Kim

IPC: G05F1/10 ,  H02M3/07

CPC classification number: H02M3/073 ,  H02J3/385 ,  H02M3/07 ,  H02M2001/0012 ,  Y02E10/58

Abstract: A charge pumping apparatus includes a voltage pumping unit for pumping an input voltage, a voltage pumping control unit for controlling the voltage pumping unit according to a comparison result between the input voltage and an input criterion voltage and a comparison result between an output voltage output from the voltage pumping unit and an output criterion voltage, and an optimum power point tracking unit for tracking an optimum power point in the case of detecting that the output voltage decreases lower than the output criterion voltage, and adjusting an input impedance to change the input criterion voltage to a voltage corresponding to the optimum power point, wherein the optimum power point is a power point where an input power according to the input voltage becomes a maximum. Since the optimum power point is tracked by measuring only a voltage without a current sensor, a power loss is small.

Abstract translation: 电荷泵送装置包括用于泵浦输入电压的电压泵送单元，用于根据输入电压和输入基准电压之间的比较结果控制电压抽运单元的电压抽运控制单元，以及从 电压抽运单元和输出标准电压，以及用于在检测到输出电压降低到低于输出标准电压的情况下跟踪最佳功率点的最佳功率点跟踪单元，以及调整输入阻抗以改变输入标准 电压达到对应于最佳功率点的电压，其中最佳功率点是其中根据输入电压的输入功率变为最大值的功率点。 由于通过仅测量没有电流传感器的电压来跟踪最佳功率点，所以功率损耗小。

公开(公告)号：US20140266124A1

公开(公告)日：2014-09-18

申请号：US14205386

申请日：2014-03-12

Applicant: SILICON MOTION INC.

Inventor： Tsun-Hsin Wang

IPC: H02M3/07

CPC classification number: H02M3/07 ,  G05F1/565 ,  H02M3/073 ,  H02M2001/0045 ,  H02M2003/072

Abstract: A switching-capacitor regulator with a charge injection mode for a high loading current is provided, where the switching-capacitor regulator is used to generate an output voltage at an output node, and the switching-capacitor regulator includes a storage capacitor, a switch module, a current source and a control unit. The switch module is coupled between the storage capacitor, a first supply voltage, a second supply voltage and the output node. The current source is coupled to the output node, and is used for selectively providing a current to the output node. The control unit is coupled to the switch module and the output node, and is used for controlling the switch module to selectively charge or discharge the storage capacitor, and for controlling the current source to selectively provide the current to the output node, to adjust a voltage level of the output voltage.

Abstract translation: 提供了一种具有高负载电流的电荷注入模式的开关电容调节器，其中开关电容调节器用于在输出节点处产生输出电压，开关电容调节器包括存储电容器，开关模块 ，电流源和控制单元。 开关模块耦合在存储电容器，第一电源电压，第二电源电压和输出节点之间。 电流源耦合到输出节点，并用于选择性地向输出节点提供电流。 控制单元耦合到开关模块和输出节点，并且用于控制开关模块以选择性地对存储电容器进行充电或放电，并且用于控制电流源以选择性地向输出节点提供电流，以调整 输出电压的电压电平。

公开(公告)号：US08823443B2

公开(公告)日：2014-09-02

申请号：US13133246

申请日：2009-12-17

Applicant: Gilberto Curatola ,  Youri Victorovitch Ponomarev

Inventor： Gilberto Curatola ,  Youri Victorovitch Ponomarev

IPC: G05F1/10 ,  G05F3/02

CPC classification number: H02M3/073 ,  H02M3/07

Abstract: A charge-pump circuit a plurality of transistor stages connected in series between a supply voltage input node and a boosted voltage output node, wherein at least one transistor stage comprises a multiple-gate transistor, which transistor comprises at least two gates, of which one is a first gate for switching the transistor on or off according to a voltage applied to the first gate, and one is an additional second gate for controlling the threshold voltage of the multiple-gate transistor, independently of the first gate, according to a control voltage applied to the second gate.

Abstract translation: 一种电荷泵电路，串联连接在电源电压输入节点和升压电压输出节点之间的多个晶体管级，其中至少一个晶体管级包括多栅极晶体管，该晶体管包括至少两个栅极，其中一个 是根据施加到第一栅极的电压来开启或关闭晶体管的第一栅极，并且一个是附加的第二栅极，用于独立于第一栅极，根据控制器控制多栅极晶体管的阈值电压 施加到第二门的电压。

公开(公告)号：US08750539B2

公开(公告)日：2014-06-10

申请号：US12649879

申请日：2009-12-30

Applicant: John Laurence Pennock ,  John Bruce Bowlerwell

Inventor： John Laurence Pennock ,  John Bruce Bowlerwell

IPC: H04R3/00

CPC classification number: H02M3/073

Abstract: Charge pump circuits having circuit components such as transistors which may be damaged by voltage transients greater than the normal operating voltage levels of the charge pump circuit, such as may be experienced during powering down. The circuit components to be protected are connected in parallel with a leakage element arranged to have a leakage current that is small enough during normal operation to allow the charge pump to operate effectively but which is large enough, during development of a voltage transient, to prevent excess voltage levels being achieved. The leakage element may have a significant leakage current at a voltage less than the breakdown voltage of the circuit component. Suitable leakage elements are poly diodes.

Abstract translation: 电荷泵电路具有诸如晶体管的电路部件，其可能被电压瞬变大于电荷泵电路的正常工作电压电平而损坏，例如在掉电期间可能会经历。 要保护的电路部件与泄漏元件并联连接，泄漏元件布置成在正常操作期间具有足够小的泄漏电流，以允许电荷泵在电压瞬变期间有效地工作，但足够大，以防止 达到过电压水平。 泄漏元件在小于电路部件的击穿电压的电压下可能具有显着的漏电流。 合适的泄漏元件是多晶硅二极管。

公开(公告)号：US08742832B2

公开(公告)日：2014-06-03

申请号：US12235620

申请日：2008-09-23

Applicant: Chih-Yuan Hsieh ,  Lan-Shan Cheng

Inventor： Chih-Yuan Hsieh ,  Lan-Shan Cheng

IPC: G05F1/10 ,  H02M3/07

CPC classification number: H02M3/073 ,  H02M3/07

Abstract: A multi-step charge pump having a power input terminal and a power output terminal is provided. The multi-step charge pump includes a plurality of capacitors, wherein each of the capacitors has a capacitance. A plurality of switching devices is connected among the capacitors, the power input terminal and the power output terminal. A switch-controlling unit controls the on/off states of the switches, wherein a charging-phase circuit corresponding to a pumping level is formed to charge the capacitors and an output-phase circuit is formed to output a voltage from the power output terminal. At least one of the capacitors herein is changeably selected as a voltage-regulating capacitor.

Abstract translation: 提供具有电源输入端子和电力输出端子的多级电荷泵。 多级电荷泵包括多个电容器，其中每个电容器具有电容。 多个开关装置连接在电容器，电源输入端子和电力输出端子之间。 开关控制单元控制开关的开/关状态，其中形成对应于泵浦电平的充电相电路以对电容器充电，并且形成输出相电路以输出来自电力输出端子的电压。 本文中的至少一个电容器可变地选择为电压调节电容器。

公开(公告)号：US08724353B1

公开(公告)日：2014-05-13

申请号：US13837796

申请日：2013-03-15

Applicant: Arctic Sand Technologies, Inc.

Inventor： David Giuliano ,  Gregory Szczeszynski ,  Raymond Barrett, Jr.

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M1/088 ,  H02M3/073

Abstract: A switched capacitor power converter includes active semiconductor switch elements that are configured to electrically interconnect capacitors to one another in successive states. Switch driving circuits, each with a control input, power connections, and a drive output are coupled to and for control of one or more of the switch elements. At least some switch driving circuits are configured to be from one or more of the capacitors such that the voltage across power connections of said driving circuit is substantially less than a high voltage terminal of the converter. In some examples, the switch elements are configured to interconnect at least some capacitors to one another through a series of multiple of the switch elements. In some examples, the switch elements and capacitors are configured to form multiple distinct charge transfer paths between the first terminal and the second terminal, and at least some of the switch driving circuits that control switch elements of one of the distinct charge transfer paths are powered from capacitors of one or more other charge transfer paths.

Abstract translation: 开关电容器功率转换器包括有源半导体开关元件，其被配置为在连续状态下将电容器彼此电互连。 具有控制输入，电源连接和驱动输出的开关驱动电路耦合到一个或多个开关元件并用于一个或多个开关元件的控制。 至少一些开关驱动电路被配置为来自一个或多个电容器，使得所述驱动电路的电源连接上的电压基本上小于转换器的高电压端子。 在一些示例中，开关元件被配置为通过一系列开关元件的多个将互连至少一些电容器彼此。 在一些示例中，开关元件和电容器被配置为在第一端子和第二端子之间形成多个不同的电荷传输路径，并且控制不同电荷转移路径之一的开关元件的至少一些开关驱动电路被供电 来自一个或多个其它电荷转移路径的电容器。