-
1.发明授权公开(公告)号：US06198177B1
公开(公告)日：2001-03-06
申请号：US09479514
申请日：2000-01-07
IPC分类号： H02J700
CPC分类号： H02M3/33584 , H02J9/062 , H02M2001/009 , Y10T307/615 , Y10T307/625
摘要： A power supply that provides a source of backup AC voltage and a method of operating thereof. In one embodiment, the power supply includes a transformer having main power and backup power windings and a secondary winding. The power supply also includes multiple stages, namely, (1) a primary power stage coupled to the main power winding, (2) a backup power stage coupled to the backup power winding and having a backup battery, one of the primary and backup power stages acting as a current fed source and (3) an AC power stage, coupled to the secondary winding, that provides a source of AC voltage. The power supply is operable in a normal mode of operation in which the primary power stage supplies power to the secondary winding and further supplies power to the backup power winding to allow the backup power stage to charge the backup battery. The power supply is also operable in a backup mode of operation in which the backup power stage transfers power from the backup battery to the secondary winding via the backup power winding.
摘要翻译： 提供备用交流电压源的电源及其操作方法。 在一个实施例中，电源包括具有主电源和备用电源绕组的变压器和次级绕组。 电源还包括多级，即（1）耦合到主电源绕组的主功率级，（2）备用功率级，耦合到备用电源绕组并具有备用电池，主电源和备用电源之一 作为电流馈电源的级和（3）耦合到次级绕组的AC功率级，其提供AC电压源。 电源可在正常操作模式中操作，其中主功率级向次级绕组提供电力，并且进一步向备用功率绕组供电以允许备用功率级对备用电池充电。 电源还可在备用工作模式下工作，其中备用电源级通过备用电源绕组将备用电池的电力传送到次级绕组。
-
公开(公告)号：US06025999A
公开(公告)日：2000-02-15
申请号：US190953
申请日：1998-11-12
CPC分类号： H02M7/4807 , H02M3/33561 , H02M2001/007 , H02M2001/009
摘要： A power supply and a method of operating the same. In one embodiment, the power supply includes: (1) a DC-DC converter having an isolation transformer that conveys an alternating voltage of about a first frequency between a primary winding and at least one secondary winding thereof and (2) a four-quadrant inverter, coupled to one of the at least secondary winding, that converts a portion of the alternating voltage into a waveform having about a second frequency that is less than the first frequency, including: (2a) a bi-directional switch, coupled between an input and an output of the four-quadrant inverter and (2b) a controller, coupled to the switch, that activates the switch to couple the input to the output during a portion of a switching cycle of the alternating voltage to change voltages in the waveform.
摘要翻译： 电源及其操作方法。 在一个实施例中，电源包括：（1）具有隔离变压器的DC-DC转换器，其在初级绕组和至少一个次级绕组之间传送大约第一频率的交流电压，以及（2）四象限 逆变器，耦合到所述至少次级绕组中的一个，其将所述交流电压的一部分转换成具有小于所述第一频率的约第二频率的波形，所述第二频率包括：（2a）双向开关， 输入和四象限逆变器的输出，以及（2b）耦合到开关的控制器，其在交流电压的开关周期的一部分期间激活开关以将输入耦合到输出，以改变波形中的电压 。
-
3.发明授权
公开(公告)号：US6038147A
公开(公告)日：2000-03-14
申请号：US191441
申请日：1998-11-12
CPC分类号： H02M7/4807 , H02M3/33561
摘要： A power supply and method of operation thereof. In one embodiment, the power supply includes: (1) a primary side power switch, (2) an isolation transformer having a primary winding coupled to the primary side power switch, the primary side power switch conducting intermittently to transfer current from an input of the power supply to the isolation transformer, (3) a secondary side power switch, coupled to a secondary winding of the isolation transformer, that is operable to conduct within a conduction period of the primary side power switch to transfer current from the isolation transformer to an output of the power supply, a portion of the current being contained within the power supply during a nonconduction period of the secondary side power switch and (4) a capacitor, coupled to the secondary side power switch, that, circulates the portion toward the output during the nonconduction period.
摘要翻译： 电源及其操作方法。 在一个实施例中，电源包括：（1）初级侧电源开关，（2）隔离变压器，其具有耦合到初级侧电源开关的初级绕组，所述初级侧电源开关间断地传导电流从 隔离变压器的电源，（3）耦合到隔离变压器的次级绕组的次级侧电源开关，其可操作以在初级侧电源开关的导通时段内传导，以将电流从隔离变压器传输到 电源的输出，在次级侧电源开关的非导通期间，电流的一部分被包含在电源内;以及（4）耦合到次级侧电源开关的电容器，其将该部分朝向 产量在非传导期。
-
4.发明授权Switching controller for a buck+boost converter and method of operation thereof 失效降压+升压转换器的开关控制器及其操作方法
公开(公告)号：US6037755A
公开(公告)日：2000-03-14
申请号：US111010
申请日：1998-07-07
CPC分类号： H02M3/1582 , G05F1/62
摘要： For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, a method of controlling the first and second switches and buck+boost DC/DC power converters employing the switching controller or the method. In one embodiment, the switching controller includes: (1) a regulation circuit that provides a drive signal and (2) a drive signal generator, coupled to the regulation circuit, that generates a pulse of fixed duration based on the drive signal and provides the pulse and the drive signal to the first and second switches. In another embodiment, the switching controller further includes a comparison circuit that compares an input voltage with an output voltage and generates a control signal based thereon to a drive signal generator that routes a pulse and a drive signal to the first and second switches.
摘要翻译： 用于具有第一和第二开关的降压+升压DC / DC电力转换器，开关控制器，采用开关控制器或方法控制第一和第二开关和降压+升压DC / DC电力转换器的方法。 在一个实施例中，切换控制器包括：（1）提供驱动信号的调节电路和（2）耦合到调节电路的驱动信号发生器，其基于驱动信号产生固定持续时间的脉冲，并且提供 脉冲和驱动信号到第一和第二开关。 在另一实施例中，切换控制器还包括比较电路，其将输入电压与输出电压进行比较，并且基于驱动信号发生器产生控制信号，所述驱动信号发生器将脉冲和驱动信号传送到第一和第二开关。
-
5.发明授权Bus holdup circuit for a distributed power system and method of operation thereof 失效用于分布式电力系统的总线保持电路及其操作方法公开(公告)号：US06201721B1
公开(公告)日：2001-03-13
申请号：US09558939
申请日：2000-04-26
IPC分类号： H02M100
CPC分类号： H02J1/00 , H02H9/004 , Y10S323/908
摘要： A bus holdup circuit for a module of a distributed power system, a method of bolstering bus voltage and a distributed power system employing the circuit or the method. In one embodiment, wherein the module has a backplane interface adapted to be removably coupled to a DC backplane of the distributed power system, the bus holdup circuit includes: (1) an energy storage circuit, coupled across the backplane interface, adapted to store and dissipate energy to bolster a voltage across the DC backplane and (2) an inrush limiting circuit, series-coupled to the energy storage circuit, adapted to limit an inrush current to the module.
摘要翻译： 一种用于分布式电力系统模块的总线保持电路，一种增加总线电压的方法以及采用电路或方法的分布式电力系统。 在一个实施例中，其中模块具有适于可拆卸地耦合到分布式电力系统的DC背板的背板接口，总线保持电路包括：（1）耦合在背板接口上的能量存储电路，适于存储和 耗散能量以支持跨越DC背板的电压;（2）串联耦合到能量存储电路的浪涌限制电路，适用于限制到模块的浪涌电流。
-
公开(公告)号：US6038145A
公开(公告)日：2000-03-14
申请号：US167479
申请日：1998-10-06
IPC分类号： H03K17/16 , H03K17/691 , H02M3/335
CPC分类号： H03K17/168 , H03K17/162 , H03K17/691
摘要： A controller for a power switch having an isolated control terminal and coupled to a secondary winding of a drive transformer and a method of preventing spurious turn-on of the power switch. The controller includes: (1) a controllable switch, coupled between the secondary winding and the power switch, that alters a control voltage of the power switch in response to a characteristic of the secondary winding, and (2) a bias circuit coupled to the controllable switch and the power switch that provides a voltage differential between the controllable switch and the power switch to prevent spurious turn-on thereof.
摘要翻译： 一种用于具有隔离控制端并耦合到驱动变压器的次级绕组的电源开关的控制器，以及防止电源开关的虚假接通的方法。 控制器包括：（1）耦合在次级绕组和功率开关之间的可控开关，其响应于次级绕组的特性改变功率开关的控制电压，以及（2）耦合到 可控开关和电源开关，其在可控开关和电源开关之间提供电压差，以防止其虚假接通。
-
7.发明授权Isolation circuit and verification controller for a power supply and power plant employing the same 失效用于使用该电路的电源和发电厂的隔离电路和验证控制器
公开(公告)号：US5917250A
公开(公告)日：1999-06-29
申请号：US946621
申请日：1997-10-07
CPC分类号： H02J1/10 , Y10T307/305 , Y10T307/313 , Y10T307/615 , Y10T307/747 , Y10T307/858
摘要： An isolation circuit for use in a power plant having a first power supply that powers a first load and a second power supply that powers a second load. The first and second power supplies are cross-couplable via a first and second auxiliary path to allow the first power supply to power the second load and the second power supply to power the first load. The first power supply is subject to a reverse current by way of the first auxiliary path. The isolation circuit includes a first switch, located in the first auxiliary path, that substantially reduces the reverse current flowing into the first power supply thereby enhancing an isolation of the first power supply. A controller is, also, provided that monitors the first switch thereby enhancing a reliability of the power plant.
摘要翻译： 一种用于发电厂的隔离电路，具有为第一负载供电的第一电源和为第二负载供电的第二电源。 第一和第二电源通过第一和第二辅助路径交叉耦合，以允许第一电源为第二负载供电，而第二电源为第一负载供电。 第一电源通过第一辅助路径经受反向电流。 隔离电路包括位于第一辅助路径中的第一开关，其基本上减少流入第一电源的反向电流，从而增强第一电源的隔离。 还提供控制器，其监视第一开关，从而提高发电厂的可靠性。
-
8.发明授权DC plant controller and method for selecting among multiple power sources and DC plant employing the same 有权直流设备控制器和多个电源之间的选择方法和采用该电源的直流设备公开(公告)号：US08193661B2
公开(公告)日：2012-06-05
申请号：US12372659
申请日：2009-02-17
IPC分类号： H02J9/00
CPC分类号： H02J1/10 , Y10T307/62 , Y10T307/696
摘要： Various embodiments of a DC plant controller, methods of selecting among multiple power sources and DC plants incorporating the DC plant controller or the method. In one embodiment, the DC plant controller includes: (1) a source identifier configured to identify power sources couplable to a common DC bus, (2) a source prioritizer coupled to the source identifier and configured to prioritize the power sources based on at least one criterion and (3) an output characteristic assigner coupled to the source prioritizer and configured to assign output characteristics to the power sources that differ from one another as a function of the priority.
摘要翻译： DC设备控制器的各种实施例，在多个电源之间进行选择的方法以及包含DC设备控制器的DC设备或该方法。 在一个实施例中，DC设备控制器包括：（1）源标识符，其被配置为识别可耦合到公共DC总线的电源;（2）耦合到源标识符并被配置为基于至少基于电源的优先级 一个标准和（3）输出特性分配器，其耦合到源优先级排列器并且被配置为根据优先级将彼此不同的功率源的输出特性分配。
-
9.发明授权Asymmetrical half-bridge power converter having reduced input ripple and method of manufacturing the same 失效具有减小的输入纹波的非对称半桥功率转换器及其制造方法公开(公告)号：US06188586B1
公开(公告)日：2001-02-13
申请号：US09553824
申请日：2000-04-21
IPC分类号： H02M3335
摘要： An asymmetrical half-bridge power converter and a method of manufacturing the same. In one embodiment, the asymmetrical half-bridge power converter includes: (1) first and second power switches configured to be controlled by complementary drive signals having nominal first and second duty cycles of D and 1-D, respectively and (2) first and second capacitors, having intrinsic capacitance values proportional to 1-D and D, respectively, and intrinsic equivalent series resistance (ESR) values proportional to D and 1-D, respectively, configured to reduce input ripple current associated with the asymmetrical half-bridge power converter.
摘要翻译： 不对称半桥功率转换器及其制造方法。 在一个实施例中，非对称半桥功率转换器包括：（1）第一和第二功率开关，其被配置为由分别具有D和1-D的标称第一和第二占空比的互补驱动信号控制，以及（2）第一和 分别具有与1-D和D成比例的固有电容值的第二电容器和分别与D和1-D成比例的本征等效串联电阻（ESR）值，其被配置为减少与不对称半桥功率相关联的输入纹波电流 转换器。
-
公开(公告)号：US5457379A
公开(公告)日：1995-10-10
申请号：US137682
申请日：1993-10-15
摘要： A switching boost regulator, including auxiliary circuitry having an auxiliary switch and inductor connected to operate the regulator in a zero-voltage transition mode, achieves substantial efficiency improvement by limiting losses in the auxiliary circuitry dedicated to achieving zero-voltage transition operation. Loss reduction circuitry included with the auxiliary circuitry cooperatively operates to limit turn-on and conduction losses and to suppress ringing of the components of the auxiliary circuit.
摘要翻译： 开关升压调节器包括具有辅助开关和电感器的辅助电路，其连接以在零电压转换模式下操作调节器，通过限制专用于实现零电压转换操作的辅助电路中的损耗来实现显着的效率提高。 辅助电路所包括的减少损耗电路协同工作，以限制导通和导通损耗，并抑制辅助电路的组件振铃。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.018 秒)