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    • 41. 发明授权
    • Apparatus providing bias to solar cells
    • 向太阳能电池提供偏置的装置
    • US07969757B2
    • 2011-06-28
    • US12334234
    • 2008-12-12
    • Kent Kernahan
    • Kent Kernahan
    • H02M7/48H01L31/00
    • H02J3/383H01L31/02021H01L31/0296Y02E10/563Y10S136/293Y10S323/906
    • Solar panels of certain technologies may experience a degradation of their efficiency as a result of exposure to sunlight, either prior to installation or during normal operation. A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to the solar panel and to a source of alternating current. The PAMCC receives direct current from the solar panel and provides pulse amplitude modulated current at its output terminals at such times that the solar panel is capable to provide current, denominated “normal operation”. The PAMCC may be reconfigured to form a buck converter and a rectifier wherein the rectifier converts power received at the output (during normal operation) terminals to provide rectified, direct current to the buck converter. The buck converter provides direct current in the forward biased direction to the solar panel, thereby reconditioning the solar panel. Alternating current received at the output terminals of the PAMCC may be provided by an electric grid or by other means, such as other solar power converters.
    • 某些技术的太阳能电池板在安装之前或在正常工作期间可能会因暴露在阳光下而导致其效率的降低。 称为“PAMCC”的直流脉冲幅度调制(“PAM”)电流转换器连接到太阳能电池板和交流电源。 PAMCC从太阳能电池板接收直流电流,并在其输出端提供脉冲幅度调制电流,使太阳能电池板能够提供电流计量的“正常运行”。 PAMCC可以被重新配置以形成降压转换器和整流器,其中整流器转换在输出(正常操作)端子处接收的功率,以向降压转换器提供整流的直流电流。 降压转换器向正向偏置方向提供直流电流到太阳能电池板,从而重新调整太阳能电池板。 在PAMCC的输出端子处接收的交流电可以由电网或其它装置(诸如其它太阳能转换器)来提供。
    • 42. 发明授权
    • Blade architecture array converter
    • 刀片架构阵列转换器
    • US07929324B1
    • 2011-04-19
    • US12276411
    • 2008-11-23
    • Kent KernahanSorin Andrei Spanoche
    • Kent KernahanSorin Andrei Spanoche
    • H02M1/10H02J1/10H02J1/12
    • H02M7/493H02J3/382H02J3/383H02J3/386H02M2001/0064H02M2003/1586Y02E10/563Y02E10/763Y10T307/505Y10T307/511
    • A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. Some embodiments provide a PAMCC for each direct current source in an array, for example multiple solar panels. The PAMCC receives direct current and provides pulse amplitude modulated current at its output. The pulses are produced at a high frequency relative to the signal modulated on a sequence of pulses. The signal modulated onto a sequence of pulses may represent portions of a lower frequency sine wave or other lower frequency waveform, including DC. When a PAMCC's output is connected in parallel with the outputs of similar PAMCCs an array of PAMCCs is formed, wherein the output pulses of the PAMCCs are out of phase with respect to each other. 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.
    • 称为“PAMCC”的直流脉冲幅度调制(“PAM”)电流转换器连接到单独的直流电源。 一些实施例为阵列中的每个直流电源提供PAMCC,例如多个太阳能电池板。 PAMCC接收直流电流,并在其输出端提供脉冲幅度调制电流。 相对于在脉冲序列上调制的信号,以高频产生脉冲。 调制到脉冲序列上的信号可以表示低频正弦波或其它低频波形的部分,包括DC。 当PAMCC的输出与类似PAMCC的输出并联连接时,形成PAMCC阵列,其中PAMCC的输出脉冲相对于彼此是异相的。 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。
    • 44. 发明申请
    • THREE PHASE POWER GENERATION FROM A PLURALITY OF DIRECT CURRENT SOURCES
    • 来自多个直接电流源的三相发电
    • US20110057515A1
    • 2011-03-10
    • US12861815
    • 2010-08-23
    • Sorin Andrei SpanocheKent Kernahan
    • Sorin Andrei SpanocheKent Kernahan
    • H02M7/48
    • H02M7/48H02J3/383Y02E10/563Y10T307/685Y10T307/707
    • 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 three output terminals, wherein the current of each terminal is one hundred twenty degrees out of phase with the other two terminals. The pulses are produced at a high frequency relative to the signal modulated on a sequence of pulses. The signal modulated onto a sequence of pulses may represent portions of a lower frequency sine wave or other lower frequency waveform, including DC. When each phased output is connected in parallel with the outputs of similar PAMCCs an array of PAMCCs is formed, wherein each voltage phased output pulse is out of phase with respect to a corresponding current output pulse of the other PAMCCs. An array of PAMCCs constructed in accordance with the present invention form a distributed three-phase multiphase inverter whose combined output is the demodulated sum of the current pulse amplitude modulated by each PAMCC on each phase.
    • 称为“PAMCC”的直流脉冲幅度调制(“PAM”)电流转换器连接到单独的直流电源。 PAMCC接收直流电流,并在其三个输出端提供脉冲幅度调制电流,其中每个端子的电流与另外两个端子相差一百二十度。 相对于在脉冲序列上调制的信号,以高频产生脉冲。 调制到脉冲序列上的信号可以表示低频正弦波或其它低频波形的部分,包括DC。 当每个相位输出与类似PAMCC的输出并联连接时,形成PAMCC阵列,其中每个电压相控输出脉冲相对于其它PAMCC的相应电流输出脉冲是异相的。 根据本发明构造的PAMCC阵列形成分布式三相多相逆变器,其组合输出是由每个相位上的每个PAMCC调制的电流脉冲幅度的解调和。
    • 46. 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
    • 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
    • US20080191667A1
    • 2008-08-14
    • US11705947
    • 2007-02-12
    • Kent KernahanMilton D. RibeiroDongsheng ZhouLarry A. Klein
    • Kent KernahanMilton D. RibeiroDongsheng ZhouLarry A. Klein
    • H02J7/00
    • H02J7/045H01M10/44H01M10/48H02J7/0077
    • 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.
    • 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。