公开(公告)号：US20130154483A1

公开(公告)日：2013-06-20

申请号：US13325934

申请日：2011-12-14

申请人： Tobin D. Hagan ,  David L. Freeman ,  Marco Corsi

发明人： Tobin D. Hagan ,  David L. Freeman ,  Marco Corsi

IPC分类号： H05B37/02 ,  H05B37/00

CPC分类号： H05B33/0818 ,  H05B33/0848

摘要： A method for controlling a light emitting diode (LED) is provided. Initially, the LED, which had been active, is deactivated, and a voltage for a current that corresponds to the persistence of the LED is generated. The voltage is then integrated so as to generate an integrated voltage, and the integrated voltage is compared to a threshold. When the integrated voltage is less than the threshold, the LED is then activated.

摘要翻译： 提供了一种用于控制发光二极管（LED）的方法。 最初，已激活的LED被激活，并且产生对应于LED的持续性的电流的电压。 然后将电压积分以产生积分电压，并将积分电压与阈值进行比较。 当集成电压小于阈值时，LED将被激活。

公开(公告)号：US08570012B2

公开(公告)日：2013-10-29

申请号：US13324709

申请日：2011-12-13

申请人： Tobin D. Hagan ,  Marco Corsi ,  David L. Freeman

发明人： Tobin D. Hagan ,  Marco Corsi ,  David L. Freeman

IPC分类号： G05F1/10 ,  H03K19/20 ,  H03K19/094

CPC分类号： H02M3/155

摘要： A tunable depletion diode is provided. Within this depletion diode, there is a depletion mode transistor that is coupled to the anode terminal at its gate and the cathode terminal at its drain. A diode is coupled between the source of the depletion mode transistor and the anode terminal, and a variable capacitor is coupled between the source of the depletion mode transistor and the anode terminal, where the capacitance of the variable capacitor is controls the reverse recovery time of the tunable depletion diode.

摘要翻译： 提供可调谐耗尽二极管。 在该耗尽二极管内，存在耗尽型晶体管，其在其栅极处的阳极端子和其漏极处的阴极端子耦合。 二极管耦合在耗尽型晶体管的源极和阳极端子之间，并且可变电容器耦合在耗尽型晶体管的源极与阳极端子之间，其中可变电容器的电容控制反向恢复时间 可调谐耗尽二极管。

公开(公告)号：US08575845B2

公开(公告)日：2013-11-05

申请号：US13325934

申请日：2011-12-14

申请人： Tobin D. Hagan ,  David L. Freeman ,  Marco Corsi

发明人： Tobin D. Hagan ,  David L. Freeman ,  Marco Corsi

IPC分类号： H05B37/02 ,  H05B37/00

CPC分类号： H05B33/0818 ,  H05B33/0848

摘要： A method for controlling a light emitting diode (LED) is provided. Initially, the LED, which had been active, is deactivated, and a voltage for a current that corresponds to the persistence of the LED is generated. The voltage is then integrated so as to generate an integrated voltage, and the integrated voltage is compared to a threshold. When the integrated voltage is less than the threshold, the LED is then activated.

摘要翻译： 提供了一种用于控制发光二极管（LED）的方法。 最初，已激活的LED被激活，并且产生对应于LED的持续性的电流的电压。 然后将电压积分以产生积分电压，并将积分电压与阈值进行比较。 当集成电压小于阈值时，LED将被激活。

公开(公告)号：US20130146887A1

公开(公告)日：2013-06-13

申请号：US13324709

申请日：2011-12-13

申请人： Tobin D. Hagan ,  Marco Corsi ,  David L. Freeman

发明人： Tobin D. Hagan ,  Marco Corsi ,  David L. Freeman

IPC分类号： H01L27/06

CPC分类号： H02M3/155

摘要： A tunable depletion diode is provided. Within this depletion diode, there is a depletion mode transistor that is coupled to the anode terminal at its gate and the cathode terminal at its drain. A diode is coupled between the source of the depletion mode transistor and the anode terminal, and a variable capacitor is coupled between the source of the depletion mode transistor and the anode terminal, where the capacitance of the variable capacitor is controls the reverse recovery time of the tunable depletion diode.

摘要翻译： 提供可调谐耗尽二极管。 在该耗尽二极管内，存在耗尽型晶体管，其在其栅极处的阳极端子和其漏极处的阴极端子耦合。 二极管耦合在耗尽型晶体管的源极和阳极端子之间，并且可变电容器耦合在耗尽型晶体管的源极与阳极端子之间，其中可变电容器的电容控制反向恢复时间 可调谐耗尽二极管。

公开(公告)号：US08773091B2

公开(公告)日：2014-07-08

申请号：US13324728

申请日：2011-12-13

申请人： Tobin D. Hagan

发明人： Tobin D. Hagan

IPC分类号： G05F1/59

CPC分类号： H02M3/156 ,  H02M3/1588 ,  H02M2001/0058 ,  Y02B70/1466 ,  Y02B70/1491

摘要： A method for generating an output voltage from an input voltage with a switched mode power supply at a switching frequency is provided. At the switching frequency, a transistor within a switching circuit is deactivated so as to enter into a dead time interval, where the switching circuit includes a switching node. A negative inductor current is used during the dead time interval so as to slew the switching node, where switching frequency and the input voltage are sufficiently large so as to overcome a loss incurred by using the negative inductor current.

摘要翻译： 提供一种用于以开关频率从开关模式电源产生输入电压的输出电压的方法。 在开关频率下，开关电路内的晶体管被​​去激活，以进入死区时间，其中开关电路包括开关节点。 在死区间隔期间使用负电感电流，以便切换开关频率和输入电压足够大的开关节点，以克服使用负电感电流引起的损耗。

公开(公告)号：US20130147451A1

公开(公告)日：2013-06-13

申请号：US13324728

申请日：2011-12-13

申请人： Tobin D. Hagan

发明人： Tobin D. Hagan

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M3/1588 ,  H02M2001/0058 ,  Y02B70/1466 ,  Y02B70/1491

摘要： A method for generating an output voltage from an input voltage with a switched mode power supply at a switching frequency is provided. At the switching frequency, a transistor within a switching circuit is deactivated so as to enter into a dead time interval, where the switching circuit includes a switching node. A negative inductor current is used during the dead time interval so as to slew the switching node, where switching frequency and the input voltage are sufficiently large so as to overcome a loss incurred by using the negative inductor current.

摘要翻译： 提供一种用于以开关频率从开关模式电源产生输入电压的输出电压的方法。 在开关频率下，开关电路内的晶体管被​​去激活，以进入死区时间，其中开关电路包括开关节点。 在死区间隔期间使用负电感电流，以便切换开关频率和输入电压足够大的开关节点，以克服使用负电感电流引起的损耗。

公开(公告)号：US07072776B2

公开(公告)日：2006-07-04

申请号：US10985388

申请日：2004-11-09

申请人： Tobin D. Hagan ,  David J. Baldwin ,  William E. Grose

发明人： Tobin D. Hagan ,  David J. Baldwin ,  William E. Grose

IPC分类号： G06F1/00 ,  G01F1/68

CPC分类号： G01F1/698

摘要： A system and method are provided to regulate resistance in a discontinuous time hot-wire anemometer. The solution removes supply voltage dependency on the mass airflow output signal. Operating the hot-wire anemometer using discontinuous time regulation offers lower system power, but introduces an inverse supply dependent term in the associated transfer function. This effect is removed by multiplying the output signal via a supply dependent signal.

摘要翻译： 提供了一种用于调节不连续时间热线风速计中的电阻的系统和方法。 该解决方案消除了对质量气流输出信号的电源电压依赖性。 使用不连续时间调节操作热线风速计提供较低的系统功率，但在相关的传递函数中引入了逆供电相关项。 通过经由电源相关信号乘以输出信号来消除这种影响。

公开(公告)号：US07013725B1

公开(公告)日：2006-03-21

申请号：US11079675

申请日：2005-03-14

申请人： Tobin D. Hagan ,  David J. Baldwin ,  William E. Grose

发明人： Tobin D. Hagan ,  David J. Baldwin ,  William E. Grose

IPC分类号： G01F1/68

CPC分类号： G01F1/696

摘要： In accordance with the teachings of the present invention, a system and method for regulating bridge voltage in a discrete-time hot-wire anemometer is provided. In a particular embodiment, the hot-wire anemometer includes a bridge circuit including a hot-wire resistor, first and second input terminals, and first and second output terminals, the hot-wire resistor having a resistance dependent at least in part on an airflow past the hot-wire resistor. The hot-wire anemometer further includes a first operational amplifier coupled to the output terminals of the bridge circuit, the first operational amplifier operable to generate an output signal in response to a voltage differential across the first and second output terminals of the bridge circuit, and a second operational amplifier operable to generate an output signal in response to the output signal of the first operational amplifier and to a discontinuous time control signal. A switching mechanism cycles a supply voltage to the input terminals of the bridge circuit in response to output signal of the second operational amplifier such that the supply voltage is intermittently connected to the input terminals the bridge circuit, and an inductor coupling the switching mechanism to the first input terminal of the bridge circuit operable to low-pass filter an output voltage of the bridge circuit.

摘要翻译： 根据本发明的教导，提供了一种用于在离散时间热线风速计中调节桥电压的系统和方法。 在特定实施例中，热线风速计包括一个桥接电路，该桥接电路包括一个热线电阻器，第一和第二输入端子以及第一和第二输出端子，该热线电阻器具有至少部分取决于气流 过热线电阻。 所述热线风速计还包括耦合到所述桥接电路的输出端的第一运算放大器，所述第一运算放大器可操作以响应桥电路的第一和第二输出端的电压差产生输出信号，以及 第二运算放大器，用于响应于第一运算放大器的输出信号和不连续的时间控制信号产生输出信号。 切换机构响应于第二运算放大器的输出信号而将电源电压循环到桥式电路的输入端，使得电源电压间歇地连接到桥式电路的输入端，以及将开关机构耦合到 桥接电路的第一输入端子可操作以对桥式电路的输出电压进行低通滤波。