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1. 发明授权

US09667100B2 Voltage monitoring control device and voltage monitoring control method 有权
公开(公告)号：US09667100B2
公开(公告)日：2017-05-30
申请号：US14900887
申请日：2013-06-26
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Nobuhiko Itaya
IPC分类号： H02J3/14 , H02J13/00 , G05F1/12 , H02J3/12 , G05F1/16 , H02J3/18 , G05F1/70 , H02J3/16
CPC分类号： H02J13/0017 , G05F1/12 , G05F1/16 , G05F1/70 , H02J3/12 , H02J3/14 , H02J3/16 , H02J3/18 , Y02B70/3225 , Y02E40/76 , Y04S10/545 , Y04S20/222
摘要： A centralized voltage control device connected to a first local voltage control device adjusting the control amount every second cycle such that a voltage of a transformer-type voltage control apparatus is maintained within a range between voltage upper and lower limit values updated every first cycle and a second local voltage control device adjusting the control amount of a reactive-power-modified voltage control apparatus every third cycle, wherein the centralized voltage control device includes a load and power-generation-amount estimation unit estimating a load and power-generation-amount distribution every first cycle under condition of a mean load and mean power generation, condition of a minimum load and maximum power generation, and condition of a maximum load and minimum power generation, a voltage-fluctuation-band estimation unit estimating a voltage fluctuation band, an optimal-voltage-distribution determination unit determining a control target value of the first local voltage control device, and a voltage upper-and-lower-limit-value determination unit.

2. 发明授权

US09201453B2 Self-retracting connector for docking device 有权
标题翻译：用于对接装置的自动回缩连接器
公开(公告)号：US09201453B2
公开(公告)日：2015-12-01
申请号：US13662375
申请日：2012-10-26
申请人： Apple Inc.
发明人： Craig Stanley
IPC分类号： G05F1/16 , G06F1/16 , H04M1/04
CPC分类号： G06F1/1626 , G06F1/1632 , H04M1/04
摘要： Docking stations that can include a durable, movable plug connector are provided. For example, the plug connector can rotate and retract into or extend out of an opening of the docking station housing, thereby reducing the likelihood of breakage caused by misuse. A pivoting retraction mechanism can be rotatably coupled to the plug connector to allow the plug connector to be movable. The retraction mechanism can be a compliant mechanism that is formed from a single piece of material. The plug connector can be biased in a first position by a biasing element that also returns the plug connector to the first position after moving. The opening in the docking station that accommodates the plug connector's full range of motion may only be slightly larger than the plug connector.
摘要翻译：提供了可以包括耐用的可移动插头连接器的对接站。例如，插头连接器可以旋转和缩回到对接站外壳的开口中或从插座连接器的开口延伸出来，从而减少由误用引起的断裂的可能性。枢转回缩机构可以可旋转地联接到插头连接器，以允许插头连接器可移动。缩回机构可以是由单件材料形成的柔顺机构。插头连接器可以通过偏置元件在第一位置偏置，偏置元件也在移动之后将插头连接器返回到第一位置。扩展插座连接器的整个运动范围的扩展坞中的开口只能略高于插头连接器。

3. 发明申请

US20120025789A1 ON-LOAD TAP CHANGER COMPRISING SEMICONDUCTOR SWITCHING ELEMENTS 失效
标题翻译：负载切换器包含半导体开关元件
公开(公告)号：US20120025789A1
公开(公告)日：2012-02-02
申请号：US13129598
申请日：2010-02-06
申请人： Oliver Brueckl , Dieter Dohnal , Hans-Henning Lessmann-Mieske
发明人： Oliver Brueckl , Dieter Dohnal , Hans-Henning Lessmann-Mieske
IPC分类号： G05F1/16
CPC分类号： H01H9/0005
摘要： The invention relates to an on-load tap changer comprising semiconductor switching elements for uninterrupted switching between winding taps of a tapped transformer. According to the invention, contact bars are provided which extend in the direction of the path of the fixed tap contacts and can be contacted using contact bridges that can be jointly moved by a contact slide in such a way that direct electrical connections to the charge diverter and electrical connections to the inputs and the output of the semiconductor switching elements can be established.
摘要翻译：本发明涉及一种有载分接开关，其包括用于在抽头变压器的绕组抽头之间不间断切换的半导体开关元件。根据本发明，提供了接触杆，其沿着固定分接头触头的路径的方向延伸，并且可以使用可以由接触滑块联合移动的接触桥接触，使得与电荷分流器的直接电连接并且可以建立与半导体开关元件的输入和输出的电连接。

4. 发明申请

US20090230933A1 HYBRID ON-LOAD TAP CHANGER AND A METHOD OF OPERATING THE SAME 有权
标题翻译：混合负载带更换器及其操作方法
公开(公告)号：US20090230933A1
公开(公告)日：2009-09-17
申请号：US12281235
申请日：2007-03-06
申请人： Donald Colin Murray Oates , Milan Saravolac
发明人： Donald Colin Murray Oates , Milan Saravolac
IPC分类号： G05F1/16
CPC分类号： G05F1/14 , H01F29/04 , H01H9/0005
摘要： A hybrid on-load tap changer, for use in high voltage alternating current power transmission, including a selector and a diverter having two legs defining respective current paths. Each leg includes a pair of opposed first and second semiconductor switches. The hybrid on-load tap changer also includes a controller configured to switch on one of the first or second semiconductor switches of a given leg at a predetermined point within the alternating current cycle so as to commutate off a desired semiconductor switch in the other leg.
摘要翻译：一种用于高压交流电力传输的混合式有载分接开关，包括选择器和具有限定各自电流路径的两条支路的分流器。每个腿包括一对相对的第一和第二半导体开关。混合式有载分接开关还包括控制器，其被配置为在交流电周期内的预定点处接通给定支路的第一或第二半导体开关中的一个，以便将另一支路中期望的半导体开关换向。

5. 发明申请

US20070057652A1 Apparatus and method for monitoring tap positions of load tap changer 有权
标题翻译：用于监测有载分接开关的分接头位置的装置和方法
公开(公告)号：US20070057652A1
公开(公告)日：2007-03-15
申请号：US11520821
申请日：2006-09-13
申请人： Gary Hoffman , Thomas Tennille
发明人： Gary Hoffman , Thomas Tennille
IPC分类号： G05F1/16
CPC分类号： G05F1/147
摘要： A load tap changer (LTC) having a plurality of windings is coupled to one of the primary and secondary windings of a power transformer in order to regulate the output voltage of the power transformer. The LTC includes a plurality of taps physically and electrically connected to the LTC windings and the transformer's output voltage is increased/decreased by moving along the taps a contacting element whose movement is controlled by a rotating shaft driven by a motor. The tap being contacted is determined by sensing the direction and number of shaft rotations and by checking the number of shaft rotations specified to go from a tap to the next tap being contacted. The time for a full rotation of the shaft is also measured. Also, the temperature of the tanks containing the LTC taps and the power transformer is measured for each tap position.
摘要翻译：具有多个绕组的有载分接开关（LTC）被耦合到电力变压器的一个和次级绕组中的一个，以便调节电力变压器的输出电压。 LTC包括物理和电连接到LTC绕组的多个抽头，并且变压器的输出电压通过沿着抽头移动一个接触元件来增大/减小，接触元件的移动由电动机驱动的旋转轴控制。接触的水龙头通过感测轴旋转的方向和数量以及通过检查指定从一个水龙头到另一个水龙头被接触的轴旋转次数来确定。也测量轴完全旋转的时间。此外，对于每个分接位置，测量包含LTC抽头和电力变压器的箱体的温度。

6. 发明授权

US07151662B2 Bracket element for a distribution device enclosure 失效
标题翻译：配电装置外壳的支架元件
公开(公告)号：US07151662B2
公开(公告)日：2006-12-19
申请号：US10789951
申请日：2004-02-27
申请人： Daniel M. Tarkoff , Dale E. Pfeifer , John M. Liston
发明人： Daniel M. Tarkoff , Dale E. Pfeifer , John M. Liston
IPC分类号： G05F1/16
CPC分类号： H01R13/518
摘要： A bracket element for a prefabricated distribution device enclosure includes a body having a front surface, a rear surface and at least one side surface connecting the front surface to the rear surface. The bracket element includes a module opening extending through a portion of the front surface for at least partially receiving a communications module therein. The bracket element also includes an enclosure connection orifice arrangement of a plurality of enclosure connection orifices located on one of the side surface and/or the rear surface. An attachment mechanism is in operable communication with one or more of the enclosure connection orifices for securing the bracket element to a surface of the distribution device enclosure.
摘要翻译：用于预制分配装置外壳的托架元件包括具有前表面，后表面和将前表面连接到后表面的至少一个侧表面的主体。托架元件包括延伸穿过前表面的一部分的模块开口，用于至少部分地在其中接收通信模块。托架元件还包括位于侧表面和/或后表面中的一个上的多个外壳连接孔的外壳连接孔布局。连接机构与一个或多个外壳连接孔可操作地连通，用于将支架元件固定到分配装置外壳的表面。

7. 发明授权

US5726561A Voltage selection apparatus and methods 失效
公开(公告)号：US5726561A
公开(公告)日：1998-03-10
申请号：US669593
申请日：1996-06-24
申请人： Ramit Ghosh , Mark E. Besmen
发明人： Ramit Ghosh , Mark E. Besmen
IPC分类号： H02J3/24 , H02M1/10 , G05F1/16
CPC分类号： H02J3/24 , H02M1/10
摘要： The apparatus and methods of the invention provide conversion of a wide range of utility voltages found worldwide, to a fixed nominal voltage level. The invention therefore provides the ability to "plug in" to virtually any power source, and produce a desired nominal voltage for operation of electrical equipment either alone or in conjunction with a UPS device. The voltage selection apparatus provides standard nominal levels of electrical power to equipment while utilizing power sources of varying voltage and frequency. The device is dynamically adaptive to the input power source, and maintains its output within a nominal range even where the input source varies to a substantial degree. The voltage selection apparatus comprises an input for receiving input AC voltage from a power source, and a transformer to produce an output voltage which is coupled to the input. The transformer has at least one winding and a predetermined plurality of winding taps used to achieve a desired nominal output voltage from the transformer. A voltage detector is coupled between the input and the transformer to selectively measure the input voltage and enable output of a selected nominal output voltage. A control circuit is coupled to the voltage detector and monitors the input voltage to produce control signals in response thereto. A plurality of relay devices, each being coupled in series with one of the winding taps are used to select a desired or required tap configuration. The relay devices are controlled by the control circuit to select a predetermined winding tap based upon the input voltage to produce an output from the transformer within a desired nominal voltage range. The invention also provides methods of operation for regulating output voltage from a transformer having a plurality of voltage taps and being supplied with an AC input voltage. A nominal output voltage is maintained by initiating required tap changes by detecting a zero crossing of the input voltage and turning off current to a switch coupling the selected tap to the input voltage. A determination of a different transformer tap to be selected to supply the nominal output voltage is made, and current is selectively supplied to the switch coupling the input voltage to the different transformer tap. The step of supplying current to the switch of the different transformer tap is performed at a predetermined time relative to turning off current to the switch of the previously selected tap based upon the different tap to be selected. The methods of the invention include a no-break tap change with forced commutation of current and synchronized tap change with natural current communication. The methods allow transformer tap changes without interruption of power to the load and/or with minimal transient current surges on the power line. It is also an object of the invention to provide an apparatus and methods which minimize tap selection changes.

8. 发明授权

US5694034A Tap changer for a tapped or stepped transformer 失效
标题翻译：分接开关用于抽头或阶梯式变压器
公开(公告)号：US5694034A
公开(公告)日：1997-12-02
申请号：US703020
申请日：1996-08-26
申请人： Dieter Dohnal , Hans-Henning Lessmann-Mieske
发明人： Dieter Dohnal , Hans-Henning Lessmann-Mieske
IPC分类号： H01F29/04 , G05B24/02 , G05F1/16
CPC分类号： H01H9/0038 , H01F29/04
摘要： A tap changing circuit has each tap of a power transformer connected with a selector vacuum switching cell. The odd numbered cells and the even numbered cells are connected to respective sides of a load switch each including a further vacuum switching cell. The sides are bridged by a transition inductor or resistor.
摘要翻译：抽头切换电路具有与选择器真空开关单元连接的电力变压器的每个抽头。奇数单元和偶数单元连接到负载开关的各个侧面，每个负载开关包括另外的真空开关单元。侧面由转换电感或电阻桥接。

9. 发明授权

US5608314A Incremental output current generation circuit 失效
标题翻译：增量输出电流产生电路
公开(公告)号：US5608314A
公开(公告)日：1997-03-04
申请号：US226163
申请日：1994-04-11
申请人： Ann Woo
发明人： Ann Woo
IPC分类号： H01L27/04 , G05F3/24 , H01L21/822 , G05F1/16
CPC分类号： G05F3/24
摘要： An incremental output current generation circuit is disclosed wherein a reference current and a reference voltage are established which follow a bias current which is then multiplied. A set of predetermined voltage reference points are established and the multiplied current supplied thereto. A ramping input voltage is compared to the established voltage referencing points by comparitors. The outputs of the comparators flag the highest voltage reference point which the value of the voltage exceeded. These outputs are sensed by a current generator thereby providing predetermined fractions of the reference current to be delivered at the output as the output source current. In such a manner, an incremental output source current is generated which is dependent on an input voltage level and predetermined incrementally by the value of an established reference current.
摘要翻译：公开了一种增量输出电流产生电路，其中建立遵循随后相乘的偏置电流的参考电流和参考电压。建立一组预定的电压参考点，并向其提供相乘的电流。通过比较器将斜坡输入电压与建立的电压参考点进行比较。比较器的输出标记电压值超过的最高电压参考点。这些输出由电流发生器感测，从而提供作为输出源电流输出的参考电流的预定分数。以这种方式，产生依赖于输入电压电平并以已建立的参考电流的值逐渐地预定的增量输出源电流。

10. 发明授权

US10007286B2 Switching regulator overload detector 有权
公开(公告)号：US10007286B2
公开(公告)日：2018-06-26
申请号：US14839144
申请日：2015-08-28
申请人： SUNRISE MICRO DEVICES, INC.
发明人： Vasan Venkataraman , Daniel Lewis Cross , Edgar H. Callaway, Jr.
IPC分类号： G05F1/16 , G05F1/66 , G05B15/02 , G01R31/40 , H02J1/14 , G01R31/36
CPC分类号： G05F1/66 , G01R31/3647 , G01R31/40 , G05B15/02 , H02J1/14
摘要： A method, apparatus, and device provide for the detection of the adequacy of the current sourcing capability of a power source. The current sourcing capability of the power source is dynamically detected by sampling comparison values obtained during one or more sampling sub-windows and determining a sample density of comparison values. In response to the sample density of comparison values crossing a selectable density threshold, an insufficient-supply indication is generated.

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