公开(公告)号：US09472980B2

公开(公告)日：2016-10-18

申请号：US13907511

申请日：2013-05-31

申请人： Xunwei Zhou

发明人： Xunwei Zhou

IPC分类号： H02J7/00 ,  H02J7/35 ,  H02J7/02

CPC分类号： H02J7/35 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0063 ,  H02J7/022 ,  Y10T307/696

摘要： For managing a battery, an apparatus includes a first switch electrically connected to a first connection and a second connection. At least one of a load and a power supply is electrically connected the first connection. In addition, an inductor is electrically connected to the second connection. A second switch is electrical connected to the first connection and electrically connected to the common. The third switch is electrically connected to a third connection and electrically connected to the battery. The fourth switch is electrically connected to the third connection and electrical connected to the common. The inductor is also electrical connected the third connection.

摘要翻译： 为了管理电池，装置包括电连接到第一连接和第二连接的第一开关。 负载和电源中的至少一个电连接第一连接。 此外，电感器电连接到第二连接。 第二开关电连接到第一连接并电连接到公共端。 第三开关电连接到第三连接并电连接到电池。 第四开关电连接到第三连接并且电连接到公共端。 电感器也是电连接第三个连接。

公开(公告)号：US20060176038A1

公开(公告)日：2006-08-10

申请号：US11052480

申请日：2005-02-08

申请人： Randy Flatness ,  Xunwei Zhou

发明人： Randy Flatness ,  Xunwei Zhou

IPC分类号： G05F1/40 ,  G05F1/618

CPC分类号： H02M3/156 ,  H02M3/1582

摘要： A switched regulator circuit provides step-up and step-down operation in which the level of the input voltage can be greater, equal to, or less than a preset controlled output voltage. A four switch arrangement or two switch arrangement provides buck, boost, and buck-boost regulation under constant frequency valley-peak current mode control. A single sense resistor may be utilized for sensing inductor current during only a short period during each duty cycle. As an alternative to the sense resistor, the switches themselves can be used to sense current during operation.

摘要翻译： 开关稳压器电路提供升压和降压操作，其中输入电压的电平可以大于等于或小于预设的受控输出电压。 四个开关装置或两个开关装置在恒定频率谷峰电流模式控制下提供降压，升压和降压 - 升压调节。 单个检测电阻器可用于在每个占空比期间的短时间内感测电感器电流。 作为检测电阻器的替代方案，开关本身可用于在操作期间感测电流。

公开(公告)号：US20060176035A1

公开(公告)日：2006-08-10

申请号：US11052473

申请日：2005-02-08

申请人： Randy Flatness ,  Xunwei Zhou

发明人： Randy Flatness ,  Xunwei Zhou

IPC分类号： G05F1/40 ,  G05F1/618

CPC分类号： H02M3/1582 ,  H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A switched regulator circuit provides step-up and step-down operation at high efficiency during light load conditions. Switching loss is reduced in a four switch arrangement by limiting bottom MOSFET switching frequency. The possibility of overcharge in boost mode operation has been avoided by automatically changing to a buck mode operation in response to sensed parameters.

摘要翻译： 开关稳压器电路在轻负载条件下以高效率提供升压和降压操作。 通过限制底部MOSFET开关频率，在四个开关布置中开关损耗减小。 通过响应感测参数自动切换到降压模式操作，避免了升压模式操作过充电的可能性。

公开(公告)号：US20140002269A1

公开(公告)日：2014-01-02

申请号：US13535378

申请日：2012-06-28

申请人： Xunwei Zhou

发明人： Xunwei Zhou

IPC分类号： G08B21/18

CPC分类号： H01M10/482 ,  H01M10/488 ,  H01M2200/20

摘要： For detecting swelling in batteries supplying power to electrical equipment, at least one contact sensor such as quantum tunneling composite (“QTC”) based pressure-capacitive sensor coated on one surface with a layer of conductive material such as indium tin oxide (“ITO”) or a capacitive sensor coated with the same conductive material is used for attachment to each battery. A capacitance measuring module including a microcontroller is connected to the contact sensor and measures the capacitance of the ITO-coated conductor. If the capacitance under measurement represents an increase in capacitance exceeding a predetermined threshold, indicative of battery swelling, a call for battery replacement and interruption of battery power to the electrical equipment are initiated.

摘要翻译： 为了检测向电气设备供电的电池中的膨胀，至少一个接触传感器例如在一个表面上涂覆有诸如氧化铟锡（“ITO”）的导电材料层的基于量子隧道复合材料（“QTC”）的压电电容传感器， ）或涂覆有相同导电材料的电容传感器用于连接到每个电池。 包括微控制器的电容测量模块连接到接触传感器并测量ITO涂覆的导体的电容。 如果测量的电容表示超过预定阈值的电容增加，则指示电池膨胀，开始对电气设备的更换电池和电池电力的中断。

公开(公告)号：US07812585B2

公开(公告)日：2010-10-12

申请号：US11802960

申请日：2007-05-29

申请人： Xunwei Zhou ,  Randy G. Flatness

发明人： Xunwei Zhou ,  Randy G. Flatness

IPC分类号： G05F1/40

CPC分类号： H02M3/156 ,  H02M3/1588 ,  Y02B70/1466

摘要： A voltage regulator includes an input connectable to a voltage source and an output connectable to a load. The voltage regulator includes an inductor coupled to the output, a switch between the input and the inductor, and a current control loop configured to control the duty cycle of the switch to regulate voltage at the output, wherein the duty cycle being based on both a peak and valley threshold level of current flowing through the inductor.

摘要翻译： 电压调节器包括可连接到电压源的输入端和可连接到负载的输出端。 电压调节器包括耦合到输出的电感器，在输入端和电感器之间的开关，以及电流控制回路，其被配置为控制开关的占空比以调节输出端的电压，其中占空比基于 峰值和谷值电流流经电感的电流。

公开(公告)号：US07466112B2

公开(公告)日：2008-12-16

申请号：US11052477

申请日：2005-02-08

申请人： Xunwei Zhou ,  Randy G. Flatness

发明人： Xunwei Zhou ,  Randy G. Flatness

IPC分类号： G05F1/613

CPC分类号： H02M3/1582 ,  H02M3/156

摘要： A switched regulator circuit provides step-up and step-down operation in which the level of the input voltage can be greater, equal to, or less than a preset controlled output voltage. A four switch arrangement or two switch arrangement provides buck, boost, and buck-boost regulation under variable frequency valley-peak current mode control. A single sense resistor may be utilized for sensing inductor current during each duty cycle.

摘要翻译： 开关稳压器电路提供升压和降压操作，其中输入电压的电平可以大于等于或小于预设的受控输出电压。 四个开关装置或两个开关装置在可变频率谷峰电流模式控制下提供降压，升压和降压 - 升压调节。 单个检测电阻可用于在每个占空比期间感测电感电流。

公开(公告)号：US07394231B2

公开(公告)日：2008-07-01

申请号：US11052480

申请日：2005-02-08

申请人： Randy G. Flatness ,  Xunwei Zhou

发明人： Randy G. Flatness ,  Xunwei Zhou

IPC分类号： G05F1/613

CPC分类号： H02M3/156 ,  H02M3/1582

摘要： A switched regulator circuit provides step-up and step-down operation in which the level of the input voltage can be greater, equal to, or less than a preset controlled output voltage. A four switch arrangement or two switch arrangement provides buck, boost, and buck-boost regulation under constant frequency valley-peak current mode control. A single sense resistor may be utilized for sensing inductor current during only a short period during each duty cycle. As an alternative to the sense resistor, the switches themselves can be used to sense current during operation.

摘要翻译： 开关稳压器电路提供升压和降压操作，其中输入电压的电平可以大于等于或小于预设的受控输出电压。 四个开关装置或两个开关装置在恒定频率谷峰电流模式控制下提供降压，升压和降压 - 升压调节。 单个检测电阻器可用于在每个占空比期间的短时间内感测电感器电流。 作为检测电阻器的替代方案，开关本身可用于在操作期间感测电流。

公开(公告)号：US06590791B1

公开(公告)日：2003-07-08

申请号：US09434514

申请日：1999-11-05

申请人： Xunwei Zhou ,  Fred C. Lee

发明人： Xunwei Zhou ,  Fred C. Lee

IPC分类号： H02M3335

CPC分类号： H02M3/33569 ,  H02M3/33576 ,  H02M3/33592 ,  Y02B70/1475

摘要： A high input-voltage push-pull forward voltage regulator module (VRM) has high efficiency and fast transient response. The VRM has a primary side wherein two switches and two primary transformer windings are alternately connected in a loop. A capacitor is connected between any of two interleaved terminations. The remaining two terminations are connected to input and ground respectively. The two primary transformer windings have the same number of turns. A number of secondary sides may be used such as, for example, a half wave rectifier or a center tapped secondary. The high input-voltage push-pull forward VRM has high efficiency and fast transient-response with reduced filter capacitance and inductance. Its magnetic components can be easily integrated. As a result, very high power density can be achieved. The device die size needed to achieve the required efficiency is reduced. And control is simple. Therefore, this topology is very cost effective.

摘要翻译： 高输入电压推挽正向稳压器模块（VRM）具有高效率和快速的瞬态响应。 VRM具有初级侧，其中两个开关和两个初级变压器绕组以一个回路交替连接。 电容器连接在两个交错终端中的任一个之间。 剩下的两个端子分别连接到输入和接地。 两个主变压器绕组具有相同的匝数。 可以使用多个次级侧，例如半波整流器或中心抽头次级侧。 高输入电压推挽正向VRM具有高效率和快速瞬态响应，降低了滤波电容和电感。 其磁性部件可以轻松集成。 结果，可以实现非常高的功率密度。 实现所需效率所需的器件裸片尺寸减小。 控制简单。 因此，这种拓扑结构非常具有成本效益。

公开(公告)号：US08717186B2

公开(公告)日：2014-05-06

申请号：US13535378

申请日：2012-06-28

申请人： Xunwei Zhou

发明人： Xunwei Zhou

IPC分类号： G08B21/00

CPC分类号： H01M10/482 ,  H01M10/488 ,  H01M2200/20

摘要： For detecting swelling in batteries supplying power to electrical equipment, at least one contact sensor such as quantum tunneling composite (“QTC”) based pressure-capacitive sensor coated on one surface with a layer of conductive material such as indium tin oxide (“ITO”) or a capacitive sensor coated with the same conductive material is used for attachment to each battery. A capacitance measuring module including a microcontroller is connected to the contact sensor and measures the capacitance of the ITO—coated conductor. If the capacitance under measurement represents an increase in capacitance exceeding a predetermined threshold, indicative of battery swelling, a call for battery replacement and interruption of battery power to the electrical equipment are initiated.

摘要翻译： 为了检测向电气设备供电的电池中的膨胀，至少一个接触传感器例如在一个表面上涂覆有诸如氧化铟锡（“ITO”）的导电材料层的基于量子隧道复合材料（“QTC”）的压电电容传感器， ）或涂覆有相同导电材料的电容传感器用于连接到每个电池。 包括微控制器的电容测量模块连接到接触传感器并测量ITO涂覆的导体的电容。 如果测量的电容表示超过预定阈值的电容增加，则指示电池膨胀，开始对电气设备的更换电池和电池电力的中断。

公开(公告)号：US20060176037A1

公开(公告)日：2006-08-10

申请号：US11052478

申请日：2005-02-08

申请人： Randy Flatness ,  Xunwei Zhou

发明人： Randy Flatness ,  Xunwei Zhou

IPC分类号： G05F1/40 ,  G05F1/618

CPC分类号： H02M1/32 ,  H02M3/1582

摘要： A four switch voltage converter is regulated for buck mode and boost mode under constant frequency valley-peak current mode control. Protection circuits are responsive to output voltage and regulator current to prevent excessive current that otherwise might result from abnormally low output voltage short circuit, or spurious switching abnormalities during low duty cycle operation. The regulator control circuit is responsive to the protection circuits to automatically connect a regulator inductor between a common potential and the output to limit current.

摘要翻译： 在恒定频率谷峰电流模式控制下，四个开关电压转换器被调节为降压模式和升压模式。 保护电路响应于输出电压和调节器电流，以防止在低占空比操作期间可能由异常低的输出电压短路或杂散开关异常导致的过大电流。 调节器控制电路响应于保护电路，以在公共电位和输出之间自动连接调节器电感器以限制电流。