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74 条记录 (耗时 0.051 秒)

    Method for charging a battery using a constant current adapted to provide a constant rate of change of open circuit battery voltage
    51.
    发明申请
    Method for charging a battery using a constant current adapted to provide a constant rate of change of open circuit battery voltage 审中-公开
    使用适于提供开路电池电压的恒定变化率的恒定电流对电池充电的方法

    公开(公告)号：US20080191667A1

    公开(公告)日：2008-08-14

    申请号：US11705947

    申请日：2007-02-12

    申请人： Kent Kernahan ,  Milton D. Ribeiro ,  Dongsheng Zhou ,  Larry A. Klein

    发明人： Kent Kernahan ,  Milton D. Ribeiro ,  Dongsheng Zhou ,  Larry A. Klein

    IPC分类号： H02J7/00

    CPC分类号： H02J7/045 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0077

    摘要： A method for charging a battery is disclosed, wherein a constant current charging current is periodically adjusted as needed such that the change in battery voltage increases approximately linearly during the charging period. In some embodiments the charging is in three phases. An optional first phase charges with a low current until the battery voltages rises to a certain minimum. During a second phase a constant current is provided while the battery voltage is monitored. The second phase constant current is periodically increased if the rate of change of battery voltage is less than a predetermined value and is decreased if the rate of change of battery voltage is more than the predetermined value. When the battery voltage attains a predetermined value, a third phase begins wherein a constant voltage is applied to the battery while the battery current draw is periodically monitored. Charging is stopped when the battery current draw falls to a predetermined value or, in some embodiments, when the charging current drops to a value that is a certain percentage of the charging current at the termination of phase two.In one embodiment the battery voltage is monitored to determine a possible battery failure, for example in the case of the battery voltage decreasing during the constant current charging of phase two. In some embodiments the battery is shorted out in response to detection of a possible failure.

    摘要翻译： 公开了一种用于对电池充电的方法，其中根据需要周期性地调节恒定电流充电电流，使得电池电压的变化在充电期间近似线性地增加。 在一些实施例中，充电分三个阶段。 可选的第一阶段以低电流充电直到电池电压上升到一定的最小值。 在第二阶段期间，在监视电池电压的同时提供恒定电流。 如果电池电压的变化率小于预定值，则第二相恒定电流周期性地增加，并且如果电池电压的变化率大于预定值，则第二相恒定电流会降低。 当电池电压达到预定值时，开始第三阶段，其中在电池电流消耗被周期性地监测的同时向电池施加恒定电压。 当电池电流下降到预定值时，或者在一些实施例中当充电电流下降到在阶段2结束时充电电流的一定百分比的值时，停止充电。 在一个实施例中，监视电池电压以确定可能的电池故障，例如在阶段2的恒定电流充电期间电池电压降低的情况下。 在一些实施例中，响应于可能的故障的检测，电池被短路。

    Method of and structure for increasing signal power over cellular link
    56.
    发明授权
    Method of and structure for increasing signal power over cellular link 失效
    通过蜂窝链路增加信号功率的方法和结构

    公开(公告)号：US5666659A

    公开(公告)日：1997-09-09

    申请号：US404622

    申请日：1995-03-13

    申请人： Kent Kernahan ,  Gavin Grant

    发明人： Kent Kernahan ,  Gavin Grant

    IPC分类号： H03G7/00 ,  H03G11/00 ,  H04B1/04 ,  H04B1/40 ,  H04B1/02

    CPC分类号： H03G7/00 ,  H03G11/00 ,  H04B2001/0416

    摘要： The clipper contained in the standard cellular transceiver used in cellular telephone networks is effectively prevented from having any effect on a signal by reducing the signal amplitude so that the signal which passes through the clipper does not activate the clipper. The signal from the clipper is then re-amplified prior to being passed to the modulator for transmission over the airwaves. The signal power is further increased by adding a selected de-emphasis circuit to the system prior to the transmitter, the de-emphasis circuit causing the frequency components of the signal to decline in amplitude as a function of frequency by a selected amount, 6 dB per octave in one embodiment.

    摘要翻译： 包含在蜂窝电话网络中使用的标准蜂窝收发器中的剪辑器被有效地防止通过减小信号幅度对信号产生任何影响，使得通过剪辑器的信号不会激活限幅器。 然后来自限幅器的信号在被传递到调制器之前被重新放大，以便在无线电波上传输。 通过在发射机之前向系统添加选择的去加重电路来进一步增加信号功率，去加重电路使得信号的频率分量作为频率的函数以幅度下降所选择的量6dB 在一个实施例中为每倍频程。

    System and method for configuring an array of solar panels to be safe for human contact
    57.
    发明授权
    System and method for configuring an array of solar panels to be safe for human contact 有权

    公开(公告)号：US12113476B2

    公开(公告)日：2024-10-08

    申请号：US16501400

    申请日：2017-10-10

    申请人： Kent Kernahan

    发明人： Kent Kernahan

    IPC分类号： H02S40/32 ,  G01R31/66 ,  H02S40/36 ,  H02S50/10

    CPC分类号： H02S40/32 ,  G01R31/66 ,  H02S40/36 ,  H02S50/10

    摘要： A system comprising an array of solar panels, each panel including an electronic control module, wherein the panels are all connected in electrical series with each other and to a switch and to a string inverter, may be signaled to power down each panel to a safe output at its output terminals. The method includes sensing output wave forms of a module to be the result of its own DC-DC converter output or to be at variance with the expected output. Output wave forms at variance indicate that the control module is connected in electrical series with the input capacitance of the string inverter. If the output is as expected, the control module is deemed to not be connected to the capacitance of the string inverter as a result of the electrical series switch being open. The module then immediately drives its output to a safe level.

    Method for determining the operating condition of a photovoltaic panel
    58.
    发明授权
    Method for determining the operating condition of a photovoltaic panel 失效
    确定光伏面板工作状态的方法

    公开(公告)号：US08239149B2

    公开(公告)日：2012-08-07

    申请号：US12491335

    申请日：2009-06-25

    申请人： Mika Nuotio ,  Kent Kernahan

    发明人： Mika Nuotio ,  Kent Kernahan

    IPC分类号： G01R27/00 ,  G06F15/00

    CPC分类号： H02S50/10 ,  Y10T307/305

    摘要： Due to their exposure to extreme environments, it is expected that parts or all of a solar power system will experience degradation in performance. The degradation may be due to temporary environmental factors, such as cloud cover; damage or localized soiling; a general dirty condition; or ageing of the components. A method is disclosed wherein a remote system may detect degraded performance and determine the cause, thereby enabling a decision as to the appropriate corrective action to be taken, if any.

    摘要翻译： 由于受到极端环境的影响，预计部分或全部太阳能发电系统将遭遇性能下降。 降解可能是由于暂时的环境因素，如云层; 损坏或局部腐蚀; 一般肮脏的条件; 或老化的组件。 公开了一种方法，其中远程系统可以检测降级的性能并确定原因，从而使得能够作出适当的纠正措施的决定（如果有的话）。

    Apparatus For Converting Three Phase Electrical Power To Two Phase Electrical Power
    59.
    发明申请
    Apparatus For Converting Three Phase Electrical Power To Two Phase Electrical Power 审中-公开
    将三相电力转换为两相电力的装置

    公开(公告)号：US20120146437A1

    公开(公告)日：2012-06-14

    申请号：US13315019

    申请日：2011-12-08

    申请人： Kent Kernahan

    发明人： Kent Kernahan

    IPC分类号： H02K13/00

    CPC分类号： H02K47/30 ,  H02K7/025 ,  H02K7/108 ,  H02K7/14 ,  H02P11/06

    摘要： Methods, apparatus and systems provide a rotary three-phase to two-phase converter. The converter may receive three phase electrical power in windings of a three phase induction motor. The motor may have a rotor and induction windings with three connections in parallel in a delta wiring configuration. Two of the connectors may be connected in parallel to a two phase load. In the various embodiments, switches may be controlled to optionally disconnect the load from the rotary converter. In various embodiments, the induction motor rotor may be free rotating, coupled to fly wheel or mechanically connected to a mechanical load.

    摘要翻译： 方法，装置和系统提供一个旋转三相到两相转换器。 转换器可以在三相感应电动机的绕组中接收三相电力。 电动机可以具有三角形接线配置的具有并联的三个连接的转子和感应绕组。 两个连接器可以并联连接到两相负载。 在各种实施例中，可以控制开关以可选地将负载与旋转转换器断开连接。 在各种实施例中，感应电动机转子可以是自由旋转的，耦合到飞轮或机械连接到机械负载。

    High voltage array converter
    60.
    发明授权
    High voltage array converter 失效
    高压阵列转换器

    公开(公告)号：US08093754B2

    公开(公告)日：2012-01-10

    申请号：US13013253

    申请日：2011-01-25

    申请人： Kent Kernahan

    发明人： Kent Kernahan

    IPC分类号： H02J1/10

    CPC分类号： H02M7/48 ,  H01L31/02021 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  Y02E10/563 ,  Y02E10/763 ,  Y10T307/50 ,  Y10T307/505 ,  Y10T307/549 ,  Y10T307/642 ,  Y10T307/653 ,  Y10T307/685 ,  Y10T307/691 ,  Y10T307/707 ,  Y10T307/718 ,  Y10T307/735

    摘要： Methods for compensating for reduced power output in stages of electrical power may be implemented within a direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at its output. An array of PAMCCs constructed in accordance with the present invention form a distributed multiphase inverter whose combined output is the demodulated sum of the current pulse amplitude modulated by each PAMCC. The array is configured as a series of stages, wherein the power sources within each stage are in parallel. In some embodiments two or more stages are connected in series. In some embodiments tow or more stages are connected in a “Y” configuration. In some embodiments a weak power source is compensated for by adjusting the voltage or the current of the weak power source.

    摘要翻译： 用于补偿功率分级的功率输出降低的方法可以在被称为“PAMCC”的直流脉冲幅度调制（“PAM”）电流转换器中被连接到单独的直流电源上。 PAMCC接收直流电流，并在其输出端提供脉冲幅度调制电流。 根据本发明构造的PAMCC阵列形成分布式多相逆变器，其组合输出是由每个PAMCC调制的当前脉冲幅度的解调和。 阵列被配置为一系列级，其中每个级内的电源是并联的。 在一些实施例中，两个或多个级串联连接。 在一些实施例中，拖链或更多级以“Y”构型连接。 在一些实施例中，通过调节弱电源的电压或电流来补偿弱电源。