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公开(公告)号：US06690589B2
公开(公告)日：2004-02-10
申请号：US10085259
申请日：2002-02-28
IPC分类号： H02M700
CPC分类号： H02M1/44 , H02M1/4225 , H02M3/1584 , Y02B70/126 , Y02P80/112
摘要： Disclosed is an apparatus that equally distributes current from a rectifier circuit to a plurality of power factor correction circuit units by equal current magnitudes and lower component count advantages of peak current sensing with the lower harmonic distortion advantages of average current sensing. The output of a single average current sensing correction circuit in a master controller is logically compared with the output of a peak current sensing circuit in each of a plurality of interleaved master and slave controller units to produce a difference signal used to operate the switch in the switch leg of each controller unit to reduce emi, harmonic distortion and increase power factor toward an in phase condition.
摘要翻译： 公开了一种通过具有平均电流感测的较低谐波失真优点的等电流幅度和峰值电流感测的较低元件数量优点，将电流从整流电路均匀分配到多个功率因数校正电路单元的装置。 在主控制器中的单个平均电流检测校正电路的输出在逻辑上与在多个交错的主控制器和从属控制器单元中的每一个中的峰值电流检测电路的输出进行比较，以产生用于在 每个控制器单元的开关支路，以减少emi，谐波失真，并将功率因数提高到同相状态。
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公开(公告)号：US07239968B2
公开(公告)日：2007-07-03
申请号：US10766731
申请日：2004-01-28
IPC分类号： G01R31/00
摘要： A method and apparatus are provided for monitoring and adjusting angular speed or rotational frequency of a fan as well as wear. As a result of being able to monitor the angular speed or rotational frequency of a fan, a prediction of both wear and failure can be made. Due largely to increasing internal friction related to the amount of wear, the energy required to operate a fan at a given angular speed or rotational frequency varies. Hence, an algorithm and certain devices can be employed to make wear and failure predictions of either an mechanical or electrical fan based on energy consumption relative to an angular speed or rotational frequency.
摘要翻译： 提供了一种用于监测和调节风扇的角速度或转速以及磨损的方法和装置。 作为能够监视风扇的角速度或转速的结果，可以预测磨损和故障。 在很大程度上由于与磨损量相关的内部摩擦增加，在给定的角速度或旋转频率下操作风扇所需的能量变化。 因此，可以采用算法和某些装置来基于相对于角速度或旋转频率的能量消耗来对机械或电风扇进行磨损和故障预测。
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公开(公告)号：US20090003018A1
公开(公告)日：2009-01-01
申请号：US11872270
申请日：2007-10-15
CPC分类号： H02M3/3378
摘要： A direct current to direct current (DC/DC) converter control systems and related methods are disclosed. An exemplary embodiment provides a control circuit configured to modulate the duty cycles of a first switching device and a second switching device, and is further configured to compensate for a voltage drift at a monitoring node by varying the modulation for at least one of the switching devices.
摘要翻译： 公开了直流直流（DC / DC）转换器控制系统和相关方法。 示例性实施例提供了一种配置成调制第一开关器件和第二开关器件的占空比的控制电路，并且还被配置为通过改变至少一个开关器件的调制来补偿监测节点处的电压漂移 。
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公开(公告)号：US20120153730A1
公开(公告)日：2012-06-21
申请号：US13218938
申请日：2011-08-26
申请人： Rick L. Barnett , Raghothama Reddy
发明人： Rick L. Barnett , Raghothama Reddy
IPC分类号： H02M7/02
CPC分类号： H02M3/285 , Y10T307/707
摘要： An interleaved LLC converter, a method of operating an LLC converter and a power supply are disclosed herein. In one embodiment, the LLC converter includes: (1) a plurality of LLC power channels, with each of the plurality having an independent power input and (2) a compensation controller configured to actively adjust the independent power inputs to substantially match output voltage and current levels for a given load condition and a common operating frequency of the plurality of LLC power channels.
摘要翻译： 本文公开了一种交织的LLC转换器，一种操作LLC转换器和电源的方法。 在一个实施例中，LLC转换器包括：（1）多个LLC功率通道，其中多个LLC功率通道具有独立的功率输入;以及（2）补偿控制器，被配置为主动地调整独立功率输入以基本上匹配输出电压和 给定负载条件的电流电平和多个LLC电力通道的公共工作频率。
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5.发明授权Switching device internal diode detection circuit and method of operating the same 失效开关器件内部二极管检测电路及其操作方法
公开(公告)号：US6020735A
公开(公告)日：2000-02-01
申请号：US65957
申请日：1998-04-24
申请人： Rick L. Barnett , Frank H. Chavez , Jin He , Anthony J. Scocca
发明人： Rick L. Barnett , Frank H. Chavez , Jin He , Anthony J. Scocca
IPC分类号： G01R1/20 , G01R19/15 , G01R31/327
CPC分类号： G01R1/206
摘要： An internal diode detection circuit for a device under test (DUT), a method of operating and a test fixture employing the same. In one embodiment, the internal diode detection circuit includes a source of electrical power that applies a reverse bias voltage to the DUT. The internal diode detection circuit also includes a current indicator, series-coupled to the DUT, that generates a signal when a current flows through the DUT. The signal indicates a presence of an internal diode in the DUT.
摘要翻译： 一种用于待测器件（DUT）的内部二极管检测电路，一种操作方法和使用该二极管的测试夹具。 在一个实施例中，内部二极管检测电路包括向DUT施加反向偏置电压的电源。 内部二极管检测电路还包括串联耦合到DUT的电流指示器，当电流流过DUT时产生信号。 该信号表示DUT中存在内部二极管。
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公开(公告)号：US09083242B2
公开(公告)日：2015-07-14
申请号：US13218938
申请日：2011-08-26
申请人： Rick L. Barnett , Raghothama Reddy
发明人： Rick L. Barnett , Raghothama Reddy
CPC分类号： H02M3/285 , Y10T307/707
摘要： An interleaved LLC converter, a method of operating an LLC converter and a power supply are disclosed herein. In one embodiment, the LLC converter includes: (1) a plurality of LLC power channels, with each of the plurality having an independent power input and (2) a compensation controller configured to actively adjust the independent power inputs to substantially match output voltage and current levels for a given load condition and a common operating frequency of the plurality of LLC power channels.
摘要翻译： 本文公开了一种交织的LLC转换器，一种操作LLC转换器和电源的方法。 在一个实施例中，LLC转换器包括：（1）多个LLC功率通道，其中多个LLC功率通道具有独立的功率输入;以及（2）补偿控制器，被配置为主动地调整独立功率输入以基本上匹配输出电压和 给定负载条件的电流电平和多个LLC电力通道的公共工作频率。
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