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1. 发明授权

US08004248B2 Systems and methods for multi-mode battery charging 有权
标题翻译：多模式电池充电的系统和方法
公开(公告)号：US08004248B2
公开(公告)日：2011-08-23
申请号：US11748008
申请日：2007-05-14
申请人： Valerian Mayega , Percy E. Neyra , Brett E. Smith
发明人： Valerian Mayega , Percy E. Neyra , Brett E. Smith
IPC分类号： H02J7/04
CPC分类号： H02J7/0072 , H02M3/156
摘要： Various systems and methods for battery charging are disclosed herein. As just one example, a battery charger is disclosed that includes a current feedback loop that has a pulse width modulated current control output, and a voltage feedback loop that has a pulse width modulated voltage control output. In addition, the battery charger includes a transition circuit with a digital phase/frequency detector. The digital phase/frequency detector is operable to detect a duty cycle difference between the pulse width modulated current control output and the pulse width modulated voltage control output. Further, the transition circuit is operable to transition between application of a substantially current charge control to a charging node to application of a substantially constant voltage to the charging node based at least in part on the difference in duty cycle.
摘要翻译：本文公开了用于电池充电的各种系统和方法。作为仅一个示例，公开了一种电池充电器，其包括具有脉宽调制电流控制输出的电流反馈回路和具有脉宽调制电压控制输出的电压反馈回路。此外，电池充电器包括具有数字相位/频率检测器的转换电路。数字相位/频率检测器可操作以检测脉宽调制电流控制输出和脉宽调制电压控制输出之间的占空比差异。此外，转换电路可操作以至少部分地基于占空比的差异，在施加基本上当前的充电控制到充电节点之间转换到向充电节点施加基本上恒定的电压。

2. 发明授权

US07035071B1 Current limit with adaptive cycle skipping for switching regulators 有权
标题翻译：开关稳压器的自适应周期跳跃限流
公开(公告)号：US07035071B1
公开(公告)日：2006-04-25
申请号：US11025706
申请日：2004-12-29
申请人： Kee Chee Tiew , Thomas A. Schmidt , Brett E. Smith , John C. Vogt , Abidur Rahman
发明人： Kee Chee Tiew , Thomas A. Schmidt , Brett E. Smith , John C. Vogt , Abidur Rahman
IPC分类号： H02H9/08
CPC分类号： H02M3/157 , H02H9/025
摘要： A switching regulator having a current limit with adaptive cycle skipping. A buck type switching regulator circuit is provided, including an energy storage component, such as an inductor or capacitor, and a switch for controllably providing an input current to the energy storage component. A control unit controls the on time and the off time of the switch by providing cyclically recurring control pulses to the switch that cause the switch to be on during the pulses and off otherwise. A current monitor circuit monitors a current corresponding to the input current applied to the energy storage component during the periodic control pulses. An overcurrent signal generator generates an overcurrent signal pulse upon detection of the monitored current at a level above a predetermined level corresponding to an overcurrent condition. A state machine responds to the overcurrent signal pulse and suppresses a number of the cyclically recurring control pulses, thereby controlling the period between the recurring control pulses that are not suppressed, in accordance with a predetermined algorithm that increases the number each time an overcurrent signal pulse is detected in successive periods.
摘要翻译：具有适应性循环跳跃的电流限制的开关调节器。提供一种降压型开关调节器电路，其包括诸如电感器或电容器的能量存储部件，以及用于可控地向能量存储部件提供输入电流的开关。控制单元通过向开关提供周期性重复的控制脉冲来控制开关的导通时间和关断时间，使得开关在脉冲期间导通，否则为关闭。电流监视电路在周期性控制脉冲期间监视与施加到能量存储部件的输入电流相对应的电流。过电流信号发生器在检测到超过对应于过电流条件的预定电平的电平的监视电流时产生过电流信号脉冲。状态机响应过电流信号脉冲并且抑制多个周期性循环控制脉冲，从而根据每次过电流信号脉冲增加数量的预定算法来控制未被抑制的循环控制脉冲之间的周期在连续的时期内被检测到。

3. 发明授权

US07808127B2 Multile input channel power control circuit 失效
标题翻译：多路输入通道电源控制电路
公开(公告)号：US07808127B2
公开(公告)日：2010-10-05
申请号：US12185306
申请日：2008-08-04
申请人： Ross E. Teggatz , Wayne T. Chen , Brett E. Smith
发明人： Ross E. Teggatz , Wayne T. Chen , Brett E. Smith
IPC分类号： H02J1/00 , G05F1/577
CPC分类号： H02J7/0055 , Y10T307/658 , Y10T307/696 , Y10T307/707 , Y10T307/718
摘要： The disclosed apparatus and systems are adapted to implement dynamic power control in order to condition and store, and/or immediately utilize, energy from one or more available power inputs, whether the inputs are constantly, regularly, or intermittently available, singly or in various combinations. Power control circuits according to the invention provide means for dynamically responding to input availability and output requirements in order to prioritize input energy selection, input signal conditioning, and output power delivery adapted to the application and operating environment.
摘要翻译：所公开的装置和系统适于实现动态功率控制，以便调节和存储和/或立即利用来自一个或多个可用功率输入的能量，无论输入是不断地，有规律地还是间歇地可用，单独地或以各种方式组合。根据本发明的功率控制电路提供用于动态响应输入可用性和输出要求的装置，以便优先考虑适应于应用和操作环境的输入能量选择，输入信号调节和输出功率传递。

4. 发明申请

US20090314677A1 Bag with Integrated Display 审中-公开
标题翻译：集成显示器袋
公开(公告)号：US20090314677A1
公开(公告)日：2009-12-24
申请号：US12263457
申请日：2008-11-01
申请人： Ross E. Teggatz , Wayne T. Chen , Brett E. Smith
发明人： Ross E. Teggatz , Wayne T. Chen , Brett E. Smith
IPC分类号： A45C13/08 , B65D73/00
CPC分类号： B65D33/004 , A45C13/08 , A45C15/06 , B65D2203/12
摘要： The invention provides portable bags having integrated displays. Disclosed embodiments include apparatus and associated methods providing integrated electronic displays providing one or more illumination, audio, or radio frequency capabilities. Chemical displays include illumination and scent dispersal capabilities. Embodiments of bags with integrated displays also include electronic displays having at least one associated charging element for charging a charge storage element for powering the display.
摘要翻译：本发明提供具有集成显示器的便携式袋。公开的实施例包括提供集成电子显示器的装置和相关方法，其提供一个或多个照明，音频或射频能力。化学显示器包括照明和香味散布能力。具有集成显示器的袋子的实施例还包括具有至少一个相关联的充电元件的电子显示器，用于对用于对显示器供电的电荷存储元件充电

5. 发明授权

US5825448A Reflective optically active diffractive device 失效
$Reflective optically active diffractive device$
标题翻译：反射光学活性衍射装置
公开(公告)号：US5825448A
公开(公告)日：1998-10-20
申请号：US743962
申请日：1996-11-05
申请人： Philip J. Bos , Jianmin Chen , David L. Johnson, deceased , William E. Glenn , Carvel E. Holton , Brett E. Smith
发明人： Philip J. Bos , Jianmin Chen , David L. Johnson, deceased , William E. Glenn , Carvel E. Holton , Brett E. Smith
IPC分类号： G02F1/1337 , G02F1/139 , G02F1/29
CPC分类号： G02F1/1396 , G02F1/133753 , G02F1/292 , G02F2201/305 , G02F2203/48
摘要： A reflective liquid crystalline diffractive light valve for use in a diffractive projection system. The liquid crystal cell includes a transparent substrate and a reflective substrate treated to provide alternating stripes which cooperate with the liquid crystal to form liquid crystal domains extending across the thickness of the cell that will produce an appropriate phase difference in light reflected by the cell, irrespective of the polarization of incident light. The techniques embodied in the present invention are applicable to the creation of electrically controllable diffractive optical elements for ray optic, integrated optic or fiber optic utilization operated in either transmission or reflection. Diffractive patterns may be lithographically, holographically or interferometrically generated.
摘要翻译：一种用于衍射投影系统的反射型液晶衍射光阀。液晶单元包括透明基板和反射基板，以处理以提供与液晶协作的交替条纹，以形成跨越电池厚度延伸的液晶畴，其将在由电池反射的光中产生适当的相位差，不管的入射光的极化。本发明中体现的技术可用于创建用于在传输或反射中操作的射线光学，集成光学或光纤利用的电可控衍射光学元件。衍射图案可以是光刻的，全息的或干涉测量的。

6. 发明授权

US07719245B2 Methods and apparatus to provide self-tracking pre-driver controls 有权
标题翻译：提供自动跟踪预驱动器控制的方法和装置
公开(公告)号：US07719245B2
公开(公告)日：2010-05-18
申请号：US11937282
申请日：2007-11-08
申请人： Huijuan Li , Md Abidur Rahman , Brett E. Smith
发明人： Huijuan Li , Md Abidur Rahman , Brett E. Smith
IPC分类号： G05F1/44 , G05F1/56
CPC分类号： H02M1/08 , H02M3/158
摘要： Methods and apparatus for a self-tracking high-side pre-driver control are described. In an example, a method is described comprising charging a first terminal associated with a first capacitive element to a first voltage with respect to ground and a second terminal associated with a second capacitive element to a second voltage with respect to ground, changing the first voltage and the second voltage with respect to ground by changing a swing voltage, selecting one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology and driving a transistor using the selected voltage.
摘要翻译：描述了用于自跟踪高侧预驱动器控制的方法和装置。在一个示例中，描述了一种方法，其包括：将与第一电容元件相关联的第一端子相对于地面的第一电压和与第二电容元件相关联的第二端子相对于地面充电到第二电压，并且通过改变摆动电压相对于地的第二电压，基于第一开关模式电源拓扑或第二开关模式电源拓扑选择第一电压或第二电压中的一个，并且使用所选择的驱动晶体管电压。

7. 发明申请

US20100026100A1 Multile Input Channel Power Control Circuit 失效
标题翻译：多输入通道功率控制电路
公开(公告)号：US20100026100A1
公开(公告)日：2010-02-04
申请号：US12185306
申请日：2008-08-04
申请人： Ross E. Teggatz , Wayne T. Chen , Brett E. Smith
发明人： Ross E. Teggatz , Wayne T. Chen , Brett E. Smith
IPC分类号： H02J4/00
CPC分类号： H02J7/0055 , Y10T307/658 , Y10T307/696 , Y10T307/707 , Y10T307/718
摘要： The disclosed apparatus and systems are adapted to implement dynamic power control in order to condition and store, and/or immediately utilize, energy from one or more available power inputs, whether the inputs are constantly, regularly, or intermittently available, singly or in various combinations. Power control circuits according to the invention provide means for dynamically responding to input availability and output requirements in order to prioritize input energy selection, input signal conditioning, and output power delivery adapted to the application and operating environment.
摘要翻译：所公开的装置和系统适于实现动态功率控制，以便调节和存储和/或立即利用来自一个或多个可用功率输入的能量，无论输入是不断地，有规律地还是间歇地可用，单独地或以各种方式组合。根据本发明的功率控制电路提供用于动态响应输入可用性和输出要求的装置，以便优先考虑适应于应用和操作环境的输入能量选择，输入信号调节和输出功率传递。

8. 发明申请

US20090134856A1 Method of optimum current blanking time implementation in current sense circuit 有权
标题翻译：电流检测电路实现最佳电流消隐时间的方法
公开(公告)号：US20090134856A1
公开(公告)日：2009-05-28
申请号：US11986775
申请日：2007-11-26
申请人： Abidur Rahman , Huijuan Li , Brett E. Smith , Zheng Li
发明人： Abidur Rahman , Huijuan Li , Brett E. Smith , Zheng Li
IPC分类号： G06F1/10 , G01R19/00
CPC分类号： G01R19/0092 , H02M3/158 , H02M2001/0009
摘要： In a method and system for sensing current in a switching regulator (SWR) operating in a current mode, a power switch is coupled to receive the current from a switching element, the power switch being controlled by a gate signal. An inrush of the current causes an initial transient spike (ITS). A buffer having a buffer input and a buffer output is coupled to receive the gate signal and provide a buffered gate signal. The buffer output is disabled during the ITS. A sense switch (SW) is coupled to receive a portion of the current from the switching element, the SW being turned on by the buffered gate signal after the initial transient spike. A sense resistor (SR) is coupled to receive the portion of the current from the SW. An amplifier converts the portion of the current through the SR to a voltage signal for controlling the SWR.
摘要翻译：在用于感测以当前模式工作的开关调节器（SWR）中的电流的方法和系统中，电源开关被耦合以从开关元件接收电流，功率开关由门信号控制。电流的浪涌导致初始瞬态尖峰（ITS）。具有缓冲器输入和缓冲器输出的缓冲器被耦合以接收栅极信号并提供缓冲的栅极信号。缓冲区输出在ITS期间被禁用。感测开关（SW）被耦合以从开关元件接收电流的一部分，在初始瞬态尖峰之后，SW被缓冲的栅极信号导通。耦合感测电阻器（SR）以从SW接收电流的一部分。放大器将通过SR的电流的一部分转换成用于控制SWR的电压信号。

9. 发明申请

US20090121702A1 METHODS AND APPARATUS TO PROVIDE SELF-TRACKING PRE-DRIVER CONTROLS 有权
标题翻译：提供自我跟踪预驱动器控制的方法和设备
公开(公告)号：US20090121702A1
公开(公告)日：2009-05-14
申请号：US11937282
申请日：2007-11-08
申请人： Huijuan Li , Md Abidur Rahman , Brett E. Smith
发明人： Huijuan Li , Md Abidur Rahman , Brett E. Smith
IPC分类号： G05F5/00
CPC分类号： H02M1/08 , H02M3/158
摘要： Methods and apparatus for a self-tracking high-side pre-driver control are described. In an example, a method is described comprising charging a first terminal associated with a first capacitive element to a first voltage with respect to ground and a second terminal associated with a second capacitive element to a second voltage with respect to ground, changing the first voltage and the second voltage with respect to ground by changing a swing voltage, selecting one of the first voltage or the second voltage based on a first switched-mode power supply topology or a second switched-mode power supply topology and driving a transistor using the selected voltage.
摘要翻译：描述了用于自跟踪高侧预驱动器控制的方法和装置。在一个示例中，描述了一种方法，其包括：将与第一电容元件相关联的第一端子相对于地面的第一电压和与第二电容元件相关联的第二端子相对于地面充电到第二电压，并且通过改变摆动电压相对于地的第二电压，基于第一开关模式电源拓扑或第二开关模式电源拓扑选择第一电压或第二电压中的一个，并且使用所选择的驱动晶体管电压。

10. 发明授权

US07236003B2 H-bridge circuit with shoot through current prevention during power-up 有权
公开(公告)号：US07236003B2
公开(公告)日：2007-06-26
申请号：US11239021
申请日：2005-09-29
申请人： Shanmuganand Chellamuthu , Brett E. Smith , Thomas A. Schmidt , Abidur Rahman
发明人： Shanmuganand Chellamuthu , Brett E. Smith , Thomas A. Schmidt , Abidur Rahman
IPC分类号： H03K19/007
CPC分类号： H03K19/0013 , H03K17/223
摘要： The H-bridge circuit with shoot through current prevention during power-up includes: a high side transistor; a low side transistor coupled in series with the high side transistor; pull down devices coupled to a control node of the high side transistor and to a control node of the low side transistor; and wherein the pull down devices are controlled by a pull down circuit including a Power On Reset circuit, monitoring the digital power supply such that the high side and low side transistors are OFF until the digital power supply has settled to a desired operating voltage.

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