公开(公告)号：US08723604B2

公开(公告)日：2014-05-13

申请号：US13464311

申请日：2012-05-04

申请人： Quan Wan

发明人： Quan Wan

IPC分类号： H03F1/14

CPC分类号： H03F1/48 ,  H03F1/34 ,  H03F3/45475 ,  H03F2200/36 ,  H03F2203/45138 ,  H03F2203/45248 ,  H03F2203/45526

摘要： Compensation methods and systems for voltage-feedback amplifiers provide improved dynamic performance (i.e., increased bandwidth and the elimination or alleviation of a slew limitation) at high gains by direct feedback of an AC signal (i.e., an intermediate voltage) to an amplifier input without being attenuated by feedback resistor network.

摘要翻译： 用于电压反馈放大器的补偿方法和系统通过将AC信号（即，中间电压）直接反馈到放大器输入而在高增益下提供改善的动态性能（即增加带宽和消除或减轻转矩限制），而没有 被反馈电阻网络衰减。

公开(公告)号：US20130293293A1

公开(公告)日：2013-11-07

申请号：US13464311

申请日：2012-05-04

申请人： Quan Wan

发明人： Quan Wan

IPC分类号： H03F1/34 ,  H03F3/45

CPC分类号： H03F1/48 ,  H03F1/34 ,  H03F3/45475 ,  H03F2200/36 ,  H03F2203/45138 ,  H03F2203/45248 ,  H03F2203/45526

摘要： Compensation methods and systems for voltage-feedback amplifiers provide improved dynamic performance (i.e., increased bandwidth and the elimination or alleviation of a slew limitation) at high gains by direct feedback of an AC signal (i.e., an intermediate voltage) to an amplifier input without being attenuated by feedback resistor network.

摘要翻译： 用于电压反馈放大器的补偿方法和系统通过将AC信号（即，中间电压）直接反馈到放大器输入而在高增益下提供改善的动态性能（即增加带宽和消除或减轻转矩限制），而没有 被反馈电阻网络衰减。

公开(公告)号：US20130015916A1

公开(公告)日：2013-01-17

申请号：US13325750

申请日：2011-12-14

申请人： Quan Wan ,  Alasdair Alexander

发明人： Quan Wan ,  Alasdair Alexander

IPC分类号： H03F3/45 ,  H03F3/68

CPC分类号： H03F3/45995 ,  H03F3/211 ,  H03F3/45475 ,  H03F3/45977 ,  H03F2200/261 ,  H03F2200/375 ,  H03F2203/45138 ,  H03F2203/45514 ,  H03F2203/45521 ,  H03F2203/45551 ,  H03F2203/45634 ,  H03F2203/45682 ,  H03F2203/45726

摘要： An auto-zero amplifier includes a main amplifier for amplifying an input signal; the main amplifier receives an offset-correction signal for cancelling an offset at a first common-mode level of the input signal. At the first common-mode level, the offset-correction signal is based on a first value stored using a first offset-storage element. When a change is detected in the input common-mode from the first level to a second level, the first offset-storage element is switched out and a second offset-storage element, having a second value based on the second common-mode level, is switched in.

摘要翻译： 自动调零放大器包括用于放大输入信号的主放大器; 主放大器接收用于抵消输入信号的第一共模电平处的偏移的偏移校正信号。 在第一共模电平下，偏移校正信号基于使用第一偏移存储元件存储的第一值。 当在从第一级到第二级的输入共模中检测到改变时，第一偏移存储元件被切换，并且具有基于第二共模电平的第二值的第二偏移存储元件， 被切换

公开(公告)号：US08680922B2

公开(公告)日：2014-03-25

申请号：US13352654

申请日：2012-01-18

申请人： Quan Wan

发明人： Quan Wan

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F1/0205 ,  H03F3/45188 ,  H03F3/45192 ,  H03F3/45237 ,  H03F3/45708 ,  H03F2200/513 ,  H03F2203/45242 ,  H03F2203/45246 ,  H03F2203/45366 ,  H03F2203/45686 ,  H03K5/2445 ,  H03K5/2481

摘要： A power-efficient, rail-to-rail input circuit includes two differential pairs, one having devices of a first threshold voltage and one having devices of a second, different threshold voltage. In various embodiments, the two differential pairs receive a differential input in parallel and are supplied a tail current, which a control circuit steers between the pairs in accordance with a common-mode level of the input.

摘要翻译： 功率高效的轨至轨输入电路包括两个差分对，一个具有第一阈值电压的器件，另一个具有第二不同阈值电压的器件。 在各种实施例中，两个差分对并行地接收差分输入并且被提供尾电流，控制电路根据输入的共模电平在对之间转向。

公开(公告)号：US20090295362A1

公开(公告)日：2009-12-03

申请号：US12154950

申请日：2008-05-27

申请人： Benjamin A. Douts ,  Quan Wan

发明人： Benjamin A. Douts ,  Quan Wan

IPC分类号： H02M3/156

CPC分类号： G11C5/145 ,  G11C8/08 ,  H02M3/073

摘要： A voltage boost circuit is driven with a clock signal CLK which toggles between voltages V1 and V2. A first MOSFET is coupled between CLK and an output node OUT, and at least one additional MOSFET is coupled between OUT and a supply voltage. The first terminal of a capacitance is coupled at its first terminal to OUT, and at its second terminal to a delay circuit arranged to toggle its output to ˜V2 or ˜V1 a predetermined amount of time after the voltage applied to the clock signal side of the first MOSFET toggles to ˜V2 or ˜V1, respectively. The capacitance is charged to ˜V2 when the voltage applied to the clock signal side of the first MOSFET toggles to ˜V2, and OUT is increased to a voltage greater than V2 when the output of the delay circuit toggles to ˜V2. The only active device junctions subjected to the boosted voltage are MOSFET well-substrate junctions, such that no active devices are overstressed.

摘要翻译： 升压电路由时钟信号CLK驱动，时钟信号CLK在电压V1和V2之间切换。 第一个MOSFET耦合在CLK和输出节点OUT之间，并且至少一个额外的MOSFET耦合在OUT和电源电压之间。 电容的第一端子在其第一端子处耦合到OUT，并且在其第二端子处连接到延迟电路，该延迟电路布置成在施加到时钟信号侧的电压之后将其输出切换到〜V2或〜V1预定的时间量 第一个MOSFET分别切换到〜V2或〜V1。 当施加到第一个MOSFET的时钟信号侧的电压切换到〜V2时，将电容充电到〜V2，当延迟电路的输出切换到〜V2时，OUT被增加到大于V2的电压。 受到升压电压的唯一有源器件结是MOSFET良好衬底结，使得没有有效器件过应力。

公开(公告)号：US08902005B2

公开(公告)日：2014-12-02

申请号：US13626512

申请日：2012-09-25

申请人： Quan Wan

发明人： Quan Wan

IPC分类号： H03F3/45

CPC分类号： H03F3/45 ,  H03F3/4521 ,  H03F3/45273 ,  H03F3/45475 ,  H03F3/45632 ,  H03F2200/186 ,  H03F2203/45101 ,  H03F2203/45648

摘要： Apparatus and methods reduce increase the common mode range of a difference amplifier. A circuit uses one or more floating powers and one or more floating grounds coupled to an input stage of an amplifier to increase the common mode range of a difference amplifier. The floating power can be configured to select from the greater of the voltage level of one of the differential signals and the system power high source. The floating ground can be configured to select from the lesser of the voltage level of one of the differential signals and the system power low source.

摘要翻译： 装置和方法降低差分放大器的共模范围。 电路使用一个或多个浮置功率和耦合到放大器的输入级的一个或多个浮置地，以增加差分放大器的共模范围。 浮动功率可以配置为从差分信号和系统电源高电平之一的较大电压电平中进行选择。 浮动接地可以配置为从差分信号之一和系统电源低电平的较低电压电平中进行选择。

公开(公告)号：US08624668B2

公开(公告)日：2014-01-07

申请号：US13325750

申请日：2011-12-14

申请人： Quan Wan ,  Alasdair G. Alexander

发明人： Quan Wan ,  Alasdair G. Alexander

IPC分类号： H03F1/02

CPC分类号： H03F3/45995 ,  H03F3/211 ,  H03F3/45475 ,  H03F3/45977 ,  H03F2200/261 ,  H03F2200/375 ,  H03F2203/45138 ,  H03F2203/45514 ,  H03F2203/45521 ,  H03F2203/45551 ,  H03F2203/45634 ,  H03F2203/45682 ,  H03F2203/45726

摘要： An auto-zero amplifier includes a main amplifier for amplifying an input signal; the main amplifier receives an offset-correction signal for cancelling an offset at a first common-mode level of the input signal. At the first common-mode level, the offset-correction signal is based on a first value stored using a first offset-storage element. When a change is detected in the input common-mode from the first level to a second level, the first offset-storage element is switched out and a second offset-storage element, having a second value based on the second common-mode level, is switched in.

摘要翻译： 自动调零放大器包括用于放大输入信号的主放大器; 主放大器接收用于抵消输入信号的第一共模电平处的偏移的偏移校正信号。 在第一共模电平下，偏移校正信号基于使用第一偏移存储元件存储的第一值。 当在从第一级到第二级的输入共模中检测到改变时，第一偏移存储元件被切换，并且具有基于第二共模电平的第二值的第二偏移存储元件， 被切换

公开(公告)号：US20120304969A1

公开(公告)日：2012-12-06

申请号：US13484179

申请日：2012-05-30

申请人： Kimberley Allan Young ,  Quan Wan ,  Anton Robert Darcey Farber ,  Michael Theodore Sulatisky ,  Nathan Oliver Peter ,  Sheldon George Hill

发明人： Kimberley Allan Young ,  Quan Wan ,  Anton Robert Darcey Farber ,  Michael Theodore Sulatisky ,  Nathan Oliver Peter ,  Sheldon George Hill

IPC分类号： F02D41/02 ,  F02M21/02

CPC分类号： F02D19/061 ,  F02D19/027 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/28 ,  Y02T10/32 ,  Y02T10/36

摘要： Described are methods and systems for powering an Otto-cycle engine using gasoline and compressed natural gas (CNG). The Otto-cycle engine can be powered by determining a quantity of the gasoline and a quantity of the CNG to deliver to a cylinder of the engine during an engine cycle such that combustion within the cylinder occurs at a pre-determined air-fuel ratio; delivering the quantity of the gasoline to the cylinder via a gasoline injector and delivering the quantity of the CNG to the cylinder via a CNG injector such that the gasoline and the CNG combust during the same combustion event; and combusting the gasoline and the CNG within the cylinder. Delivering CNG and gasoline to the cylinder using separate injectors allows the quantities of CNG and gasoline to vary in response to engine operating conditions, which allows the fuel mixture to be adjusted to satisfy engine power and emissions criteria.

摘要翻译： 描述了使用汽油和压缩天然气（CNG）为奥托循环发动机供电的方法和系统。 奥托循环发动机可以通过在发动机循环期间确定汽油的数量和CNG的量来发送到发动机的气缸，使得气缸内的燃烧以预定的空燃比发生; 通过汽油喷射器将汽油量提供给汽缸，并通过CNG喷射器将CNG的量输送到气缸，使得汽油和CNG在同一燃烧事件期间燃烧; 并在汽缸内燃烧汽油和CNG。 使用单独的喷油器将CNG和汽油提供到气缸允许CNG和汽油的数量根据发动机运行条件而变化，这允许调节燃料混合物以满足发动机功率和排放标准。

公开(公告)号：US08590515B2

公开(公告)日：2013-11-26

申请号：US13484179

申请日：2012-05-30

申请人： Kimberley Allan Young ,  Quan Wan ,  Anton Robert Darcey Farber ,  Michael Theodore Sulatisky ,  Nathan Oliver Peter ,  Sheldon George Hill

发明人： Kimberley Allan Young ,  Quan Wan ,  Anton Robert Darcey Farber ,  Michael Theodore Sulatisky ,  Nathan Oliver Peter ,  Sheldon George Hill

IPC分类号： F02M21/02

CPC分类号： F02D19/061 ,  F02D19/027 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/28 ,  Y02T10/32 ,  Y02T10/36

摘要： Described are methods and systems for powering an Otto-cycle engine using gasoline and compressed natural gas (CNG). The Otto-cycle engine can be powered by determining a quantity of the gasoline and a quantity of the CNG to deliver to a cylinder of the engine during an engine cycle such that combustion within the cylinder occurs at a pre-determined air-fuel ratio; delivering the quantity of the gasoline to the cylinder via a gasoline injector and delivering the quantity of the CNG to the cylinder via a CNG injector such that the gasoline and the CNG combust during the same combustion event; and combusting the gasoline and the CNG within the cylinder. Delivering CNG and gasoline to the cylinder using separate injectors allows the quantities of CNG and gasoline to vary in response to engine operating conditions, which allows the fuel mixture to be adjusted to satisfy engine power and emissions criteria.

摘要翻译： 描述了使用汽油和压缩天然气（CNG）为奥托循环发动机供电的方法和系统。 奥托循环发动机可以通过在发动机循环期间确定汽油的数量和CNG的量来发送到发动机的气缸，使得气缸内的燃烧以预定的空燃比发生; 通过汽油喷射器将汽油量提供给汽缸，并通过CNG喷射器将CNG的量输送到气缸，使得汽油和CNG在同一燃烧事件期间燃烧; 并在汽缸内燃烧汽油和CNG。 使用单独的喷油器将CNG和汽油提供到气缸允许CNG和汽油的数量根据发动机运行条件而变化，这允许调整燃料混合物以满足发动机功率和排放标准。

公开(公告)号：US20130181775A1

公开(公告)日：2013-07-18

申请号：US13352654

申请日：2012-01-18

申请人： Quan Wan

发明人： Quan Wan

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F1/0205 ,  H03F3/45188 ,  H03F3/45192 ,  H03F3/45237 ,  H03F3/45708 ,  H03F2200/513 ,  H03F2203/45242 ,  H03F2203/45246 ,  H03F2203/45366 ,  H03F2203/45686 ,  H03K5/2445 ,  H03K5/2481

摘要： A power-efficient, rail-to-rail input circuit includes two differential pairs, one having devices of a first threshold voltage and one having devices of a second, different threshold voltage. In various embodiments, the two differential pairs receive a differential input in parallel and are supplied a tail current, which a control circuit steers between the pairs in accordance with a common-mode level of the input.

摘要翻译： 功率高效的轨至轨输入电路包括两个差分对，一个具有第一阈值电压的器件，另一个具有第二不同阈值电压的器件。 在各种实施例中，两个差分对并行地接收差分输入并且被提供尾电流，控制电路根据输入的共模电平在对之间转向。