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公开(公告)号：US06879199B2
公开(公告)日：2005-04-12
申请号：US10077408
申请日：2002-02-15
CPC分类号： H03K5/1515 , H03K7/08
摘要： Disclosed is an apparatus for generating two constant width and symmetrical drive signals from two separate, but complementary, pulse width modulated control signals while also generating two pulse width modulated drive signals corresponding to said pulse width modulated control signals. The constant width drive signals are generated through the use of a toggle or latch set/reset circuit actuated by a given characteristic of each of the control signals.
摘要翻译： 公开了一种用于从两个分离但互补的脉冲宽度调制控制信号产生两个恒定宽度和对称驱动信号的装置，同时还产生对应于所述脉宽调制控制信号的两个脉宽调制驱动信号。 恒定宽度驱动信号通过使用由每个控制信号的给定特性致动的触发或锁存器/复位电路产生。
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2.发明授权公开(公告)号：US06483724B1
公开(公告)日：2002-11-19
申请号：US10077426
申请日：2002-02-15
IPC分类号： H02M3335
CPC分类号： H02M1/44 , H02M3/337 , H02M2001/0051 , Y02B70/1433 , Y02B70/1491
摘要： Disclosed is a DC/DC converter apparatus comprising a full bridge non-resonant pulse-width-modulated (PWM) switching circuit, which includes inductive device(s), clamp diodes, and an output transformer rectifier and filter circuit. Capacitive and diode elements associated with bridge switching devices operate to switch current through the switches at substantially zero voltage (ZVS). The inductor element and clamp diodes are used to reduce the primary transition shoot through current resulting from reverse recovery of the transformer secondary rectification stage while also reducing emi and semiconductor stresses.
摘要翻译： 公开了一种DC / DC转换器装置，其包括全桥非谐振脉宽调制（PWM）开关电路，其包括电感器件，钳位二极管以及输出变压器整流器和滤波器电路。 与桥式开关器件相关的电容和二极管元件可工作，以基本零电压（ZVS）切换电流通过开关。 电感器元件和钳位二极管用于减少由变压器二次整流级的反向恢复产生的电流的初级转换，同时还减少了emi和半导体应力。
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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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5.发明授权Positive latching combination handle and insertion/removal tool method and apparatus 有权正锁定组合手柄和插入/取出工具的方法和装置公开(公告)号：US06680851B1
公开(公告)日：2004-01-20
申请号：US10231630
申请日：2002-08-30
IPC分类号： H05K712
CPC分类号： H05K7/1409
摘要： Disclosed is a leveraged handle apparatus which may alternatively be used as an ordinary latching and locking device for a hinged door to an enclosed area or as an insertion/extraction device for easily inserting or extracting an electronic module or other container from an enclosure where electrical pins may be damaged by improper insertion techniques, and/or the insertion/extraction forces may be more than can be conveniently provided by a technician. The outer surface of the handle and an associated latch may be flush with the other outer surfaces when the door is closed or the container is fully inserted in the enclosure. When the handle is in an unlatched condition, a spring mechanism is used to encourage the handle toward a fully open position for ease in using a finger pull for extracting or otherwise handling the object to which the handle is attached.
摘要翻译： 公开了一种杠杆式手柄装置，其可替代地用作用于铰接门到封闭区域的普通锁定和锁定装置，或用作插入/取出装置，用于从电气插头容易地插入或抽出电子模块或其他容器 可能由于不正确的插入技术而被损坏，和/或插入/拔出力可能超过技术人员可以方便地提供。 当门关闭或容器完全插入外壳时，手柄的外表面和相关联的闩锁可与其它外表面齐平。 当手柄处于未锁定状态时，使用弹簧机构来朝向完全打开位置鼓励手柄，以便于使用手指拉以提取或以其他方式处理手柄所附着的物体。
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公开(公告)号：US10921835B1
公开(公告)日：2021-02-16
申请号：US13604728
申请日：2012-09-06
IPC分类号： G05D23/19 , F24F11/64 , F24F11/52 , F24F140/50 , F24F11/47 , F24F140/60 , F24F11/58
摘要： A system for controlling an HVAC system and for monitoring energy usage at a premises is described. The system includes an energy meter at a electrical distribution panel, where the energy meter connected to one or more current transformers monitoring the current in one or more input lines and load lines and collecting current information for each of the monitored lines. The energy meter is further including a wireless radio to transmit the current information. An intelligent thermostat is operable to control the HVAC system at the premises according to environmental data sensed by the intelligent thermostat, and to receive the current information from the energy meter and to transmit the current information to a remote server for processing. A remote server is operable to process the current information from the energy meter by applying a scaling factor to the current information to determine energy usage.
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公开(公告)号：US07454013B2
公开(公告)日：2008-11-18
申请号：US11019692
申请日：2004-12-21
摘要： A power system apparatus replaces outdated and presently unobtainable power systems originally deployed in a variety of RT communication cabinets, incorporating a plug-in programmable control module used to generate alarms in response to the detection of specified events and providing direct plug compatibility to those RT cabinet systems through the use of unique wiring harnesses. Support for advanced broadband and high speed communication circuits, neither originally envisioned nor designed into the original communication RT system, is now provided.
摘要翻译： 电力系统设备取代原来部署在各种RT通信柜中的过时且目前无法获得的电力系统，其中包含用于响应于指定事件的检测而产生报警的插件可编程控制模块，并向那些RT柜提供直接插头兼容性 系统通过使用独特的线束。 现在提供了对原有通信RT系统的初步设想和设计的高级宽带和高速通信电路的支持。
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