公开(公告)号：US20180175740A1

公开(公告)日：2018-06-21

申请号：US15383346

申请日：2016-12-19

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Daniel Humphrey ,  Mohamed Amin Bemat

IPC: H02M7/04 ,  H02M1/42 ,  H02M1/36

CPC classification number: H02M3/1584 ,  H02M1/36 ,  H02M1/4208 ,  H02M1/4225 ,  H02M3/1582 ,  H02M2001/325 ,  H02M2001/4291 ,  H02M2003/071 ,  H02M2003/1586

Abstract: An example device in accordance with an aspect of the present disclosure includes a first converter to selectively convert a first input signal to a first output signal, and a second converter to selectively convert a second input signal to a second output signal. A controller is to control switches of the first and second converters based on the input signals and output signals, and based on operating the first and second converters exclusively with respect to each other such that a total of first and second duty cycles does not exceed one.

公开(公告)号：US09985016B2

公开(公告)日：2018-05-29

申请号：US15444355

申请日：2017-02-28

Applicant: NXP USA, INC.

Inventor： Jon S. Choy ,  Michael G. Neaves

IPC: H03L7/06 ,  H01L27/02 ,  H01L27/12

CPC classification number: H01L27/0222 ,  H01L21/823807 ,  H01L21/823878 ,  H01L21/823892 ,  H01L27/092 ,  H01L27/1203 ,  H01L27/1207 ,  H01L29/78 ,  H02M3/07 ,  H02M2001/0041 ,  H02M2003/071 ,  H02M2003/077

Abstract: A charge pump comprises one or more pump stages for providing a negative boosted output voltage. Each of the one or more pump stages comprises a P-channel transistor formed in an isolated P-well and an N-channel transistor coupled in series with the P-channel transistor. Forming the P-channel transistor in the isolated P-well essentially eliminates a raised threshold voltage due to body effect.

公开(公告)号：US09735672B2

公开(公告)日：2017-08-15

申请号：US14822559

申请日：2015-08-10

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. Lesso ,  Peter J. Frith ,  John L. Pennock

IPC: H02M3/07 ,  H03G3/30

CPC classification number: H02M3/07 ,  H02M2003/071 ,  H02M2003/072 ,  H03G3/30

Abstract: A bipolar output charge pump circuit having a network of switching paths for selectively connecting an input node and a reference node for connection to an input voltage, a first pair of output nodes, two pairs of flying capacitor nodes, and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, where at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.

公开(公告)号：US20160126831A1

公开(公告)日：2016-05-05

申请号：US14872150

申请日：2015-10-01

Applicant: MediaTek Singapore Pte. Ltd.

Inventor： Paul Fowers ,  Manel Collados Asensio

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M1/36 ,  H02M2003/071

Abstract: A charge pump circuit for generating a negative voltage has: a clock generator arranged to output at least one clock signal; a switched capacitor voltage inverter circuit including capacitive elements wherein the switched capacitor voltage inverter circuit receives the at least one clock signal and generates a negative voltage therefrom. The charge pump circuit further has a regulation control loop providing a feedback path from an output of the switched capacitor voltage inverter circuit to a supply input of the switched capacitor voltage inverter circuit, and an output arranged to output a generated negative voltage. The feedback path has an operational amplifier configured to generate a maximum charging supply voltage from a fed back level-shifted negative voltage and apply the maximum charging supply voltage to the input supply of the switched capacitor voltage inverter to charge at least one of the capacitive elements during a loop start up.

Abstract translation: 用于产生负电压的电荷泵电路具有：时钟发生器，被布置为输出至少一个时钟信号; 包括电容元件的开关电容器电压逆变器电路，其中所述开关电容器电压反相器电路接收所述至少一个时钟信号并从其产生负电压。 电荷泵电路还具有调节控制环路，其提供从开关电容器电压逆变器电路的输出到开关电容器电压逆变器电路的电源输入端的反馈路径，以及布置成输出产生的负电压的输出。 反馈路径具有运算放大器，其被配置为从反馈电平移位负电压产生最大充电电源电压，并将最大充电电源电压施加到开关电容器电压逆变器的输入电源，以对至少一个电容元件充电 在循环启动期间。

公开(公告)号：US09312755B2

公开(公告)日：2016-04-12

申请号：US13785601

申请日：2013-03-05

Applicant: QUALCOMM Incorporated

Inventor： Le Wang ,  Vijayakumar Dhanasekaran

IPC: H03B1/00 ,  H03K3/00 ,  H02M3/07

CPC classification number: H02M3/07 ,  H02M2003/071

Abstract: Exemplary embodiments are directed to systems, devices, methods, and computer-readable media for reducing static and dynamic power consumption of a charge pump. In one embodiment, a device may include a plurality of switches, each switch of the plurality having a gate coupled to a dedicated driver of a plurality of drivers. The device may further include at least one clamp switch coupled to at least one driver of the plurality of drivers and configured to adjust a rail voltage of the at least one driver if an input voltage is greater than a threshold voltage. In another embodiment, the device may include a plurality of multiplexers, each multiplexer of the plurality of multiplexers coupled to a portion of an associated switch of the plurality of switches and configured to disable the portion of the associated switch if a clock frequency of the charge pump is below a threshold frequency.

Abstract translation: 示例性实施例涉及用于减少电荷泵的静态和动态功耗的系统，设备，方法和计算机可读介质。 在一个实施例中，设备可以包括多个开关，多个开关中的每个开关具有耦合到多个驱动器的专用驱动器的栅极。 该装置还可以包括耦合到多个驱动器中的至少一个驱动器的至少一个钳位开关，并被配置为如果输入电压大于阈值电压则调整至少一个驱动器的轨道电压。 在另一个实施例中，设备可以包括多个多路复用器，多个复用器的每个多路复用器耦合到多个交换机中的相关联的开关的一部分，并且被配置为如果电荷的时钟频率 泵低于阈值频率。

公开(公告)号：US20160028306A1

公开(公告)日：2016-01-28

申请号：US14822559

申请日：2015-10-08

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. Lesso ,  Peter J. Frith ,  John L. Pennock

IPC: H02M3/07 ,  H03G3/30

CPC classification number: H02M3/07 ,  H02M2003/071 ,  H02M2003/072 ,  H03G3/30

Abstract: A bipolar output charge pump circuit having a network of switching paths 110 for selectively connecting an input node (VV) and a reference node (VG) for connection to an input voltage, a first pair of output nodes (VP, VN), two pairs of flying capacitor nodes (CF1A, CF1B; CF2A, CF2B), and a controller for controlling the switching of the network of switching paths. The controller is operable to control the network of switching paths when in use with two flying capacitors (CF1, CF2) connected to the two pairs of flying capacitor nodes, to provide a first mode and a second mode when in use with two flying capacitors connected to the flying capacitor nodes, wherein at least the first mode corresponds to a bipolar output voltage of +/−3VV, +/−VV/5 or +/−VV/6.

Abstract translation: 一种双极性输出电荷泵电路，具有用于选择性地连接输入节点（VV）和用于连接到输入电压的参考节点（VG）的开关路径110的网络，第一对输出节点（VP，VN），两对 的飞行电容器节点（CF1A，CF1B; CF2A，CF2B）和用于控制切换路径网络的切换的控制器。 当与两对飞跨电容器节点连接的两个浮动电容器（CF1，CF2）使用时，该控制器可操作以控制开关路径网络，以在连接两个飞行电容器时提供第一模式和第二模式 其中至少第一模式对应于+/- 3VV，+/- VV / 5或+/- VV / 6的双极性输出电压。

公开(公告)号：US20160020697A1

公开(公告)日：2016-01-21

申请号：US14751370

申请日：2015-06-26

Applicant: Semiconductor Components Industries, LLC

Inventor： Johan Camiel Julia Janssens

IPC: H02M3/158

CPC classification number: H02M3/07 ,  H01L41/042 ,  H02M2003/071 ,  H04R3/00

Abstract: In accordance with an embodiment, a transformer-less drive circuit is provided that includes a switch control network having an output terminal connected to a first switch and another output terminal connected to a second switch. A driver connected to the second switch. In accordance with another embodiment, a method for generating a drive signal is provided that includes charging a first energy storage element to a first voltage level and a second energy storage element to a second voltage level. The charge stored in the second energy storage element is increased so that the second energy storage element stores a voltage at a third voltage level. The terminals of the second energy storage element are alternately connected to a fourth voltage level. The second energy storage element is used to supply or drive a driver.

Abstract translation: 根据实施例，提供了一种无变压器驱动电路，其包括具有连接到第一开关的输出端子和连接到第二开关的另一输出端子的开关控制网络。 连接到第二开关的驱动器。 根据另一个实施例，提供了一种用于产生驱动信号的方法，其包括将第一能量存储元件充电到第一电压电平并将第二能量存储元件充电到第二电压电平。 存储在第二能量存储元件中的电荷增加，使得第二能量存储元件将电压存储在第三电压电平。 第二能量存储元件的端子交替地连接到第四电压电平。 第二能量存储元件用于提供或驱动驾驶员。

公开(公告)号：US20150256064A1

公开(公告)日：2015-09-10

申请号：US14642583

申请日：2015-03-09

Applicant: Texas Instruments Incorporated

Inventor： Susan Ann Curtis ,  Karan Singh Jain ,  Harish Venkataraman

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M2001/009 ,  H02M2003/071

Abstract: A circuit with a single capacitor and multiple outputs. The circuit reuses the same flying capacitor to charge multiple rails by timing the charging cycle sequentially, where the one rail is charged and then the charge pump switches to deliver power to the second rail.

Abstract translation: 具有单个电容器和多个输出的电路。 该电路重新使用相同的飞行电容器来对多个轨道充电，以顺序地对充电循环进行定时，其中一个轨道被充电，然后电荷泵切换以将功率输送到第二轨道。

公开(公告)号：US20150214848A1

公开(公告)日：2015-07-30

申请号：US14606517

申请日：2015-01-27

Applicant: Denso Corporation

Inventor： Kazuhiro UMETANI

IPC: H02M3/335 ,  H02M1/14

CPC classification number: H02M3/07 ,  H02M1/14 ,  H02M1/32 ,  H02M7/103 ,  H02M2001/009 ,  H02M2001/346 ,  H02M2003/071 ,  H02M2003/072 ,  H02M2003/1586 ,  Y02B70/1491

Abstract: In a power converter, at least two main current paths each including an inductor and a transistor are connected between input terminals, and at least two storage circuits each including capacitors are correspondingly connected to branch nodes of the main current paths. Diodes are connected between the storage circuits. The transistors of the main current paths are interleaved. When one of the transistors is turned off, a current flowing in the corresponding inductor flows into the corresponding storage circuit to turn on the diodes and to charge the capacitors of the corresponding storage circuit. When another one of the transistors is turned off, a current flowing in the corresponding inductor flows into the corresponding storage circuit to turn on the diodes and charge the capacitors of the corresponding storage circuit.

Abstract translation: 在功率转换器中，每个包括电感器和晶体管的至少两个主电流路径连接在输入端子之间，并且每个包括电容器的至少两个存储电路相应地连接到主电流路径的分支节点。 二极管连接在存储电路之间。 主电流路径的晶体管是交错的。 当晶体管中的一个截止时，流过对应的电感器的电流流入对应的存储电路，以接通二极管并对相应的存储电路进行充电。 当另一个晶体管截止时，流过对应的电感器的电流流入对应的存储电路，以接通二极管并对相应的存储电路进行充电。

公开(公告)号：US20150061755A1

公开(公告)日：2015-03-05

申请号：US14100192

申请日：2013-12-09

Applicant: SK hynix Inc.

Inventor： Hyun Sik JEONG

IPC: H02M3/07

CPC classification number: H02M3/07 ,  H02M2003/071

Abstract: A negative voltage pumping unit including a driver configured to receive an external high-voltage and an external voltage and drive and output an oscillator signal, and a capacitor configured to perform a pumping operation and generate a negative voltage; and an internal circuit configured to receive a ground voltage and the voltage of a node.

Abstract translation: 一种负电压抽运单元，包括被配置为接收外部高电压和外部电压并驱动和输出振荡器信号的驱动器，以及被配置为执行泵浦操作并产生负电压的电容器; 以及被配置为接收地电压和节点电压的内部电路。