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1. 发明授权

US06275395B1 Accelerated turn-off of MOS transistors by bootstrapping 有权
标题翻译：通过自举加速MOS晶体管的关断
公开(公告)号：US06275395B1
公开(公告)日：2001-08-14
申请号：US09745401
申请日：2000-12-21
申请人： Bruce Lee Inn , Alland Chee
发明人： Bruce Lee Inn , Alland Chee
IPC分类号： H02M307
CPC分类号： H03K17/0822 , H03K17/04123
摘要： A controller for limiting the current through a pass transistor is described herein that includes an NMOS control transistor coupled between the gate of the pass transistor and ground. The gate of the NMOS control transistor is coupled to a bootstrap circuit via a PMOS transistor. The PMOS transistor is turned on in the event of a current limit signal to momentarily apply the bootstrap voltage to the gate of the NMOS control transistor. This quickly turns on the NMOS control transistor to discharge the gate of the pass transistor, shutting off the pass transistor and terminating the high current situation. After the bootstrapped voltage has been shunted to ground, a reverse biased diode allows the gate of the NMOS control transistor to remain charged to keep the NMOS control transistor on. After the current limit situation has passed, the NMOS control transistor is switched off. Accordingly, short circuits in the load are quickly uncoupled from the remainder of the system by the fast reaction time of the NMOS control transistor.
摘要翻译：本文描述了用于限制通过传输晶体管的电流的控制器，其包括耦合在传输晶体管的栅极和地之间的NMOS控制晶体管。 NMOS控制晶体管的栅极通过PMOS晶体管耦合到自举电路。在电流限制信号的情况下，PMOS晶体管导通，以将自举电压暂时施加到NMOS控制晶体管的栅极。这将快速打开NMOS控制晶体管，以对通过晶体管的栅极进行放电，关闭传输晶体管并终止高电流状态。在自举电压分流到地之后，反向偏置二极管允许NMOS控制晶体管的栅极保持充电，以保持NMOS控制晶体管导通。在电流限制情况已经过去之后，NMOS控制晶体管关闭。因此，通过NMOS控制晶体管的快速反应时间，负载中的短路迅速地与系统的其余部分分离。

2. 发明授权

US06226193B1 DC/DC converter 有权
标题翻译： DC / DC转换器
公开(公告)号：US06226193B1
公开(公告)日：2001-05-01
申请号：US09625901
申请日：2000-07-26
申请人： Erich Bayer , Christian Meindl , Hans Schmeller
发明人： Erich Bayer , Christian Meindl , Hans Schmeller
IPC分类号： H02M307
CPC分类号： H02M3/07 , H02M2001/0022
摘要： The invention relates to a DC/DC converter operating on the charge pump principle, regulated to a fixed, predetermined output voltage and comprising two charge pump capacitors switched in a switch matrix consisting of nine switches. A control circuit is provided capable of controlling the switches so that the charge pump is changed over between a charging phase and a discharge phase and which is capable of operating the charge pump in two modes having different voltage gain factors (1.5; 2). The regulator comprises furthermore a regulator circuit capable of setting when the charge pump is active in the charging phase in the first mode the ON resistance of a switch present in the charge path of the charge pump capacitors or in the second mode the ON resistances of two switches present each in one of the charging paths of the first or second charge pump capacitor so that the charging voltage presented to the charge pump capacitors in the charging phase assumes the minimum value possible for a specific input voltage of the converter, a measuring circuit capable of defining the voltage occurring at one of the charge pump capacitors at a defined point in time of the charging phase; and a comparator capable of comparing the measured voltage to a predetermined voltage and then when the former attains the latter, changing over the charge pump into the corresponding other mode, wherein the predetermined voltage is selected so that the efficiency of the converter is optimized and the charging condition of the charge pump capacitors is not altered on changeover.
摘要翻译：本发明涉及一种工作在电荷泵原理上的DC / DC转换器，其被调节到固定的预定输出电压，并且包括两个电荷泵电容器，其中开关矩阵由九个开关组成。提供了能够控制开关的控制电路，使得电荷泵在充电阶段和放电阶段之间转换，并且能够以具有不同电压增益因子（1.5; 2）的两种模式操作电荷泵。调节器还包括调节器电路，其能够在第一模式中在充电阶段中设置电荷泵何时有效地存在于电荷泵电容器的充电路径中的开关的导通电阻或者在第二模式中的导通电阻为2 开关呈现在第一或第二电荷泵电容器的充电路径中的一个中，使得在充电阶段中呈现给电荷泵电容器的充电电压取决于转换器的特定输入电压可能的最小值，测量电路能够在充电阶段的限定时间点定义在一个电荷泵电容器处发生的电压; 以及比较器，其能够将测量的电压与预定电压进行比较，然后当前者达到预定电压时，将电荷泵切换到相应的其他模式，其中选择预定电压使得转换器的效率被优化，电荷泵电容器的充电条件在切换时不会改变。

3. 再颁专利

USRE37552E1 System and method for power-efficient charging and discharging of a capacitive load from a single source 失效
标题翻译：从单个电源对电容性负载进行高效充电和放电的系统和方法
公开(公告)号：USRE37552E1
公开(公告)日：2002-02-19
申请号：US08986327
申请日：1997-12-05
申请人： Lars Svensson , William C. Athas , Jeffrey G. Koller
发明人： Lars Svensson , William C. Athas , Jeffrey G. Koller
IPC分类号： H02M307
CPC分类号： G05F1/565 , H02M3/07 , H02M3/158
摘要： A system and method for efficiently charging and discharging a capacitive load from a single voltage source. The system includes a first switch for selectively connecting the voltage source to the load and a second switch for selectively providing a short across the load as may be common in the art. A particularly novel aspect of the invention resides in the provision of plural capacitive elements and a switching mechanism for selectively connecting each of the capacitive elements to the load whereby the load is gradually charged or discharged. In the illustrative embodiment, the switching mechanism includes a set of switches for selectively connecting each of the capacitive elements to the capacitive load and a switch control mechanism for selectively activating the switches.
摘要翻译：一种用于从单个电压源高效地对容性负载进行充电和放电的系统和方法。该系统包括用于选择性地将电压源连接到负载的第一开关和用于选择性地跨越负载提供短路的第二开关，如本领域常见的那样。本发明的特别新颖的方面在于提供多个电容元件和用于选择性地将每个电容元件连接到负载的开关机构，由此负载逐渐充电或放电。在说明性实施例中，切换机构包括用于选择性地将每个电容元件连接到电容性负载的开关组以及用于选择性地启动开关的开关控制机构。

4. 发明授权

US06597235B2 Voltage boost circuits using multi-phase clock signals 失效
标题翻译：使用多相时钟信号的升压电路
公开(公告)号：US06597235B2
公开(公告)日：2003-07-22
申请号：US10043029
申请日：2002-01-09
申请人： Hee-cheol Choi
发明人： Hee-cheol Choi
IPC分类号： H02M307
CPC分类号： H02M3/073 , H02M2003/077
摘要： A boost circuit, such as might be used to generate a boosted voltage in an integrated circuit device (e.g., an EEPROM), includes a plurality of charge pump circuits having outputs connected in common and that generate current pulses responsive to respective phased periodic signals. The boost circuit further includes a multi-phase periodic signal generator circuit that generates the phased periodic signals such that they have respective different phases. For example, the multi-phase periodic signal generator circuit may include a control signal generator circuit that produces a control signal responsive to a voltage produced by the plurality of charge pump circuits, and an oscillator circuit that generates the plurality of phased periodic signals responsive to the control signal. Related operating methods are described.
摘要翻译：诸如可能用于在集成电路器件（例如，EEPROM）中产生升高的电压的升压电路包括多个电荷泵电路，其具有共同连接的输出，并且响应于各个相控周期信号产生电流脉冲。升压电路还包括产生相位周期信号的多相周期信号发生器电路，使得它们具有各自的不同相位。例如，多相周期信号发生器电路可以包括控制信号发生器电路，其产生响应于由多个电荷泵电路产生的电压的控制信号，以及振荡器电路，其产生响应于控制信号。描述相关的操作方法。

5. 发明授权

US06542389B2 Voltage pump with switch-on control 失效
公开(公告)号：US06542389B2
公开(公告)日：2003-04-01
申请号：US10046378
申请日：2001-10-19
申请人： Stefan Dietrich , Patrick Heyne , Thilo Marx , Sabine Kieser , Michael Sommer , Thomas Hein , Michael Markert , Torsten Partsch , Peter Schrögmeier , Christian Weis
发明人： Stefan Dietrich , Patrick Heyne , Thilo Marx , Sabine Kieser , Michael Sommer , Thomas Hein , Michael Markert , Torsten Partsch , Peter Schrögmeier , Christian Weis
IPC分类号： H02M307
CPC分类号： H02M3/07
摘要： The voltage pump for generating a boosted output voltage has a switch-on control circuit. The switch-on control includes a transistor that is connected between a terminal for feeding in a supply voltage and the terminal for tapping off the boosted output voltage. After the voltage pump has started to operate, the boosted output voltage is decoupled from the supply voltage by the transistor. A changeover switch forwards the respective higher of the output voltage or supply voltage to the substrate terminal and gate terminal of the transistor. The switch-on control enables early provision of a boosted output voltage in conjunction with reliable start-up operation of the voltage pump, while the additional outlay on circuitry is minimized.

6. 发明授权

US06717829B2 Charge pump device with reduced ripple and spurious low frequency electromagnetic signals 有权
标题翻译：具有减小纹波和杂散低频电磁信号的电荷泵装置
公开(公告)号：US06717829B2
公开(公告)日：2004-04-06
申请号：US10173848
申请日：2002-06-19
申请人： Koen Emiel Jozef Appeltans
发明人： Koen Emiel Jozef Appeltans
IPC分类号： H02M307
CPC分类号： H02M3/07
摘要： Charge pump circuit providing a boosted output voltage (Vout) from an input DC voltage (Vin) and including a first capacitor (1) to which the input voltage is periodically applied for a determined first time (&phgr;′1) by means of switch elements (3A, 3B) and another capacitor (2) to which the charge from the first capacitor is periodically transmitted by means of switch elements (4A, 4B) switched on for a determined second time (&phgr;′2), said another capacitor being connected, on one side, to a terminal receiving the input voltage and, on the other side, to a terminal providing the boosted output voltage. A voltage and/or current control device includes means (9, 3C, 4C) controlling the charge transmitted to the first capacitor during first times according to a determined reference voltage (Vref) and the charge transmitted from the first capacitor to the second during second times according to the boosted output voltage.
摘要翻译：电荷泵电路从输入DC电压（Vin）提供升压的输出电压（Vout），并且包括通过开关元件周期性地施加输入电压达到确定的第一时间（phi'1）的第一电容器（1）（3A，3B）和另一个电容器（2），通过开关元件（4A，4B）周期性地传输来自第一电容器的电荷，第二时间（phi'2）被接通，所述另一个电容器被连接一方面是接收输入电压的端子，另一方面是提供提升输出电压的端子。电压和/或电流控制装置包括控制发送到电池的电荷的装置（9,3C，4C）根据确定的参考电压（Vref）在第一时间期间的第一电容器和根据升压的输出电压在第二次期间从第一电容器传输到第二电容器的电荷。

7. 发明授权

US06445225B2 Line driver with variable power 有权
标题翻译：具有可变功率的线路驱动器
公开(公告)号：US06445225B2
公开(公告)日：2002-09-03
申请号：US09769493
申请日：2001-01-26
申请人： Tore Andre
发明人： Tore Andre
IPC分类号： H02M307
CPC分类号： H03K19/0008 , H03K19/0136 , H04L27/0002 , H04L27/2614 , H04L27/2626 , Y10T307/516
摘要： A line driver supplied with a power supply voltage from a power supply uses whole or part of the power supply voltage to generate the output voltage if the input voltage is within a predefined range; loads at least one capacitor with at least one capacitor voltage; and uses whole or part of the at least one capacitor voltage in addition to whole or part of the power supply voltage to generate the output voltage if the input voltage is outside the predefined range.
摘要翻译：如果输入电压在预定范围内，则从电源供给电源电压的线路驱动器使用全部或部分电源电压来产生输出电压; 负载至少一个具有至少一个电容器电压的电容器; 并且除了全部或部分电源电压之外还使用所述至少一个电容器电压的全部或一部分，以在输入电压超出预定范围时产生输出电压。

8. 发明授权

US06310789B1 Dynamically-controlled, intrinsically regulated charge pump power converter 失效
标题翻译：动态控制，本征调节电荷泵功率转换器
公开(公告)号：US06310789B1
公开(公告)日：2001-10-30
申请号：US09532918
申请日：2000-03-22
申请人： Dragan Danilo Nebrigic , Milan Marcel Jevtitch , Vladimir Gartstein , William Thomas Milam , James Vig Sherrill , Nicholas Busko , Peter Hansen
发明人： Dragan Danilo Nebrigic , Milan Marcel Jevtitch , Vladimir Gartstein , William Thomas Milam , James Vig Sherrill , Nicholas Busko , Peter Hansen
IPC分类号： H02M307
CPC分类号： H02J7/0065 , H02M3/07 , H02M3/1588 , H02M2003/072 , H04R2225/31 , H04R2225/33 , Y02B40/90 , Y02B70/1466
摘要： A charge pump power converter efficiently provides electrical power by dynamically controlling a switch matrix of the charge pump. Instead of open-loop oscillator-based control, a dynamic controller provides power upon demand by sensing the output voltage and changing the operating frequency of the charge pump in response. Moreover, this closed-loop dynamic control intrinsically voltage regulates the output voltage of the charge pump power converter without the inefficient addition of a step-down voltage regulator, downstream of the power converter. In addition, this closed-loop dynamic control allows for maintaining a desired output voltage even with variations in the input voltage. Also, the dynamic control accommodates the advantages of using ultra-capacitors in the charge pump. The power converter is capable of operating with a sub-one volt input voltage incorporating low-threshold, low on-resistance power MOSFET switches in the switch matrix of the charge pump. A progressive start-up circuit further allows the power converter to start from a discharged state even with a sub-one volt input voltage.
摘要翻译：电荷泵功率转换器通过动态地控制电荷泵的开关矩阵来有效地提供电力。代替基于开环振荡器的控制，动态控制器通过感测输出电压并响应于改变电荷泵的工作频率来提供功率。此外，这种闭环动态控制本质上是电压调节电荷泵功率转换器的输出电压，而不会在功率转换器的下游没有降压稳压器的低效添加。此外，该闭环动态控制允许即使在输入电压变化的情况下仍保持期望的输出电压。此外，动态控制适应于在电荷泵中使用超级电容器的优点。电源转换器能够在电荷泵的开关矩阵中使用包含低阈值，低导通电阻功率MOSFET开关的亚一伏输入电压进行工作。逐行启动电路还允许功率转换器即使在亚一伏输入电压下也从放电状态开始。

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