公开(公告)号：US07586769B2

公开(公告)日：2009-09-08

申请号：US11433836

申请日：2006-05-12

申请人： Khanderao Madav Gaikwad ,  Palanivel Selvaraju ,  Wilson Palaypayon

发明人： Khanderao Madav Gaikwad ,  Palanivel Selvaraju ,  Wilson Palaypayon

IPC分类号： H02M7/757 ,  H02M5/42

CPC分类号： G05F1/70 ,  H02M1/4225 ,  H02M3/1584 ,  Y02B70/126

摘要： A power factor correction (PFC) circuit includes a coupled split boost choke having at least two windings, at least two boost diodes and at least two power rails. Each power rail includes one of the windings and one of the boost diodes. The PFC circuit further includes a current balancing circuit coupled between the power rails for substantially balancing currents in such power rails.

摘要翻译： 功率因数校正（PFC）电路包括具有至少两个绕组，至少两个升压二极管和至少两个电源轨的耦合分离升压扼流圈。 每个电源轨包括一个绕组和一个升压二极管。 PFC电路还包括耦合在电源轨之间的电流平衡电路，用于基本上平衡这种电源轨中的电流。

公开(公告)号：US20090185401A1

公开(公告)日：2009-07-23

申请号：US12350109

申请日：2009-01-07

申请人： Kenichi FUKUMOTO

发明人： Kenichi FUKUMOTO

IPC分类号： H02M5/42

CPC分类号： H02M7/53803 ,  H02M1/36 ,  H02M7/53871 ,  H02M2001/0032 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/16

摘要： A semiconductor switch circuit is connected to a primary winding of a transformer having a secondary winding connected to a load. The semiconductor switch circuit has switches controlled by PWM to provide a controlled constant current. In the inventive inverter, constant current control is performed by PWM operation of the switches of the semiconductor switch circuit. The inverter cuts off electricity to the control circuit when putting the control circuit into a standby state if a run-stop signal gains a logical stop-state. At the same time as the run-stop signal gaining the stop-state, switch drive signals enabling the switches of the semiconductor switch circuit are turned off. Thus, over-current can be prevented from flowing in the load when the control circuit is put into the standby state.

摘要翻译： 半导体开关电路连接到具有连接到负载的次级绕组的变压器的初级绕组。 半导体开关电路具有由PWM控制的开关以提供受控的恒定电流。 在本发明的逆变器中，通过半导体开关电路的开关的PWM操作来执行恒定电流控制。 如果运行停止信号获得逻辑停止状态，则当将控制电路置于待机状态时，逆变器切断控制电路的电力。 在运行停止信号获得停止状态的同时，切换驱动信号使得半导体开关电路的开关断开。 因此，当控制电路处于待机状态时，可以防止在负载中流过过电流。

公开(公告)号：US07542315B2

公开(公告)日：2009-06-02

申请号：US11564932

申请日：2006-11-30

申请人： Alan D. DeVilbiss

发明人： Alan D. DeVilbiss

IPC分类号： H02M5/42 ,  H02M7/04 ,  H02M7/68

CPC分类号： H02M7/217

摘要： A voltage signal rectifier produces a rectified voltage signal from an input offset voltage signal. The voltage signal rectifier includes input offset, output, and reference nodes, two actively controlled current regulation elements (ACCREs), and two controllers. The input offset node is coupled to the input offset voltage signal. The rectified voltage signal is generated onto the output node. The reference node is coupled to a reference voltage for the input offset and rectified voltage signals. The ACCREs are coupled to the input offset node and one of the ACCREs is coupled to the output node. Each controller is configured to control the one of the ACCREs so that the ACCRE coupled to the output node allows current flow through it when the input offset voltage signal is higher than the rectified voltage signal and the other ACCRE is configured to allows current flow through it when the input offset voltage signal is lower than the rectified voltage signal.

摘要翻译： 电压信号整流器从输入偏移电压信号产生整流电压信号。 电压信号整流器包括输入偏移，输出和参考节点，两个主动控制的电流调节元件（ACCRE）和两个控制器。 输入偏移节点耦合到输入偏移电压信号。 整流电压信号被产生到输出节点上。 参考节点耦合到用于输入偏移和整流电压信号的参考电压。 ACCRE耦合到输入偏移节点，并且ACCRE中的一个耦合到输出节点。 每个控制器被配置为控制ACCRE中的一个，使得当输入偏移电压信号高于整流电压信号时，耦合到输出节点的ACCRE允许电流流过它，而另一个ACCRE被配置为允许电流流过它 当输入失调电压信号低于整流电压信号时。

公开(公告)号：US07492620B2

公开(公告)日：2009-02-17

申请号：US11853706

申请日：2007-09-11

申请人： Kenichi Fukumoto

发明人： Kenichi Fukumoto

IPC分类号： H02M5/42 ,  H02M3/335 ,  H02M7/122 ,  H02M7/5387 ,  H02J1/00

CPC分类号： H02M7/53803 ,  H02M1/36 ,  H02M7/53871 ,  H02M2001/0032 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/16

摘要： A semiconductor switch circuit is connected to a primary winding of a transformer having a secondary winding connected to a load. The semiconductor switch circuit has switches controlled by PWM to provide a controlled constant current. In the inventive inverter, constant current control is performed by PWM operation of the switches of the semiconductor switch circuit. The inverter cuts off electricity to the control circuit when putting the control circuit into a standby state if a run-stop signal gains a logical stop-state. At the same time as the run-stop signal gaining the stop-state, switch drive signals enabling the switches of the semiconductor switch circuit are turned off. Thus, over-current can be prevented from flowing in the load when the control circuit is put into the standby state.

摘要翻译： 半导体开关电路连接到具有连接到负载的次级绕组的变压器的初级绕组。 半导体开关电路具有由PWM控制的开关以提供受控的恒定电流。 在本发明的逆变器中，通过半导体开关电路的开关的PWM操作来执行恒定电流控制。 如果运行停止信号获得逻辑停止状态，则当将控制电路置于待机状态时，逆变器切断控制电路的电力。 在运行停止信号获得停止状态的同时，切换驱动信号使得半导体开关电路的开关断开。 因此，当控制电路处于待机状态时，可以防止在负载中流过过电流。

公开(公告)号：US07474081B2

公开(公告)日：2009-01-06

申请号：US11237431

申请日：2005-09-28

申请人： Silvio Colombi ,  Claudio Balbiano ,  Lauro Strozzi

发明人： Silvio Colombi ,  Claudio Balbiano ,  Lauro Strozzi

IPC分类号： G05F1/00 ,  H02M5/42 ,  H02M7/04

CPC分类号： H02M1/4216 ,  Y02B70/126 ,  Y10S323/91

摘要： An apparatus having a rectifier topology for use on a three-phase electrical system is disclosed. The apparatus includes an input filter at each phase, a rectifier set at each phase in power communication with and downstream of each respective input filter, and a separate and independent booster section at each phase in power communication with and downstream of each respective rectifier set. Each booster section comprises two switches, thereby providing a six-switch three-level discontinuous conduction mode (DCM) boost rectifier.

摘要翻译： 公开了一种具有用于三相电气系统的整流器拓扑结构的装置。 该装置包括在每个相位处的输入滤波器，在与每个相应输入滤波器的功率通信和下游的每个相位处设置的整流器，以及在每个相关整流器组的功率通信和每个相应整流器组的下游的每个相位处的独立且独立的升压器部分。 每个升压器部分包括两个开关，从而提供六开关三电平不连续导通模式（DCM）升压整流器。

公开(公告)号：US07447051B2

公开(公告)日：2008-11-04

申请号：US10962849

申请日：2004-10-12

申请人： James E. Masino ,  Roger L. Schultz

发明人： James E. Masino ,  Roger L. Schultz

IPC分类号： H02M7/217 ,  H02M5/42

CPC分类号： H02J1/10

摘要： Disclosed herein are various embodiments of power conversion systems and methods employing synchronous multi-phase AC-to-DC conversion. In one embodiment, a power converter comprises a transistor bridge and a switching controller that operates the transistor bridge in response to AC voltage threshold crossings. The switching controller may include a period counter to measure times between threshold crossings, and a delay counter to trigger a delayed state transition for the transistor bridge. One disclosed method embodiment comprises: receiving multiple phased alternating voltages; comparing each phased alternating voltage to a threshold; determining a period associated with voltage threshold crossings; triggering state transitions at some fraction of the period after each threshold crossing; and placing a transistor bridge into a configuration associated with a current state. For each state, the transistor bridge configuration is designed to couple phased alternating voltages to two output terminals in a sequence that produces a non-alternating voltage difference.

摘要翻译： 这里公开了使用同步多相AC-DC转换的功率转换系统和方法的各种实施例。 在一个实施例中，功率转换器包括晶体管桥接器和开关控制器，其响应于AC电压阈值交叉而操作晶体管桥接器。 切换控制器可以包括用于测量阈值交叉之间的时间的周期计数器和用于触发晶体管桥的延迟状态转换的延迟计数器。 一种公开的方法实施例包括：接收多个相控交流电压; 将每个相控交流电压与阈值进行比较; 确定与电压阈值交叉相关联的周期; 在每个阈值交叉后的一段时间内触发状态转换; 并将晶体管桥放置在与当前状态相关联的配置中。 对于每个状态，晶体管桥结构被设计成以产生非交流电压差的顺序将相控交流电耦合到两个输出端。

公开(公告)号：US07317625B2

公开(公告)日：2008-01-08

申请号：US10859995

申请日：2004-06-04

申请人： Wanfeng Zhang ,  Yan-Fei Liu ,  Bin Wu

发明人： Wanfeng Zhang ,  Yan-Fei Liu ,  Bin Wu

IPC分类号： H02M5/42 ,  G05F1/70 ,  G05F1/00

CPC分类号： H02M3/157 ,  H02M1/4225 ,  H02M2001/4275 ,  Y02B70/126 ,  Y02P80/112

摘要： A method and apparatus to implement parallel current mode control that is suitable for digital and analog implementation. A duty cycle algorithm is composed of a voltage term and a parallel current term which depends on the inductor current change between the inductor current value at the beginning of a switching cycle and the reference inductor current value at the end of that switching cycle. Parallel current mode control can be applied to all DC-DC converters, including both non-isolated and isolated topologies. It can also be applied to AC-DC converters with power factor correction.

摘要翻译： 一种适用于数字和模拟实现的并行电流模式控制的方法和装置。 占空比算法由电压项和并联电流项组成，取决于开关周期开始时的电感电流值与开关周期结束时的参考电感电流值之间的电感电流变化。 并联电流模式控制可应用于所有DC-DC转换器，包括非隔离和隔离拓扑。 它也可以应用于具有功率因数校正的AC-DC转换器。

公开(公告)号：US20070279954A1

公开(公告)日：2007-12-06

申请号：US11757832

申请日：2007-06-04

申请人： Michael Garrett ,  Kristina Genslak ,  Matthew Christensen ,  Samuel Miller ,  Christopher Hekel

发明人： Michael Garrett ,  Kristina Genslak ,  Matthew Christensen ,  Samuel Miller ,  Christopher Hekel

IPC分类号： H02M7/04 ,  H02M5/42

CPC分类号： H02M3/33561

摘要： An electrical adapter is disclosed that includes a power supply circuit, a sensing circuit and one or more universal DC output connectors. The electrical adapter is configured to convert AC input power at a nominal 120 volts AC to one or more DC output voltages which has the ability to provide different nominal DC voltages to each universal DC output connector depending on the portable DC device connected thereto. The electrical adapter includes a device sensing circuit that automatically senses when a portable DC device is connected to or disconnected from any of the universal DC output connectors. The electrical adapter also includes a voltage and current sensing circuit that monitors the voltage and current applied to the portable DC device connected to the universal DC connector that is used to provide closed loop feedback to the power supply circuit in order to adjust the voltage applied to the universal DC output connector as a function of the voltage and current requirements of the portable DC device connected thereto. As such, each universal DC output connector can be used for portable DC devices having different nominal DC requirements. For example, an electrical adapter with four universal DC output connectors can be used to power four cell phones with nominal 5 volt DC requirements. The same universal DC connectors can alternatively be used to charge four laptop computers with a nominal 15 volt DC requirement or any combination thereof with no changes of the circuitry required. The electrical adapter in accordance with the present invention provides significantly more flexibility than known electrical adapters in which each connector has a dedicated output voltage.

摘要翻译： 公开了一种电适配器，其包括电源电路，感测电路和一个或多个通用DC输出连接器。 电适配器被配置为将额定120伏交流电的交流输入功率转换成一个或多个直流输出电压，其具有根据连接到其上的便携式直流设备向每个通用直流输出连接器提供不同的标称直流电压的能力。 电适配器包括一个设备感测电路，它自动检测便携式直流设备何时连接到任何通用直流输出连接器或与任何通用直流输出连接器断开连接。 电气适配器还包括电压和电流检测电路，其监测施加到连接到通用DC连接器的便携式直流设备的电压和电流，所述便携式DC设备用于向电源电路提供闭环反馈，以便调整施加到 通用DC输出连接器作为与其连接的便携式直流设备的电压和电流要求的函数。 因此，每个通用DC输出连接器可用于具有不同标称直流要求的便携式直流设备。 例如，具有四个通用直流输出连接器的电气适配器可用于为标称5伏直流要求的四台手机供电。 替代地，相同的通用DC连接器可以用于对具有标称15伏直流要求的四台笔记本电脑充电，或者其任何组合，而不需要电路的改变。 根据本发明的电适配器比其中每个连接器具有专用输出电压的已知电气适配器提供显着更大的灵活性。

公开(公告)号：US20070258275A1

公开(公告)日：2007-11-08

申请号：US11704793

申请日：2007-02-09

申请人： Eric Brochu ,  Daniel Dauzon ,  Joel Leboisselier

发明人： Eric Brochu ,  Daniel Dauzon ,  Joel Leboisselier

IPC分类号： H02M5/42 ,  G05F1/14

CPC分类号： H02M7/08

摘要： In an AC/DC converter including an autotransformer having a primary winding connected to an AC power supply network and two secondary windings connected to two rectifier circuits operating in parallel to deliver a DC voltage to a load, the two same-polarity outputs of the two rectifier circuits being connected to respective first ends of a first coil and of a second coil whose second ends are connected together to form a first output of the converter, and the two outputs of the two rectifier circuits having the same other polarity being connected respectively to the first ends of a third coil and of a fourth coil whose second ends are connected together to form a second output of the converter, provision is made for the first, second, third, and fourth coils are wound on a common magnetic core. The invention is applicable to converters for use on board aircraft.

摘要翻译： 在包括具有连接到AC电源网络的初级绕组的自耦变压器的AC / DC转换器和连接到并联工作的两个整流器电路的两个次级绕组以将DC电压递送到负载的情况下，两个相同极性的输出 整流电路连接到第一线圈的相应第一端和第二线圈，其第二端连接在一起以形成转换器的第一输出，并且具有相同另一极性的两个整流器电路的两个输出分别连接到 第三线圈的第一端和第二线圈的第二端连接在一起以形成转换器的第二输出，使得第一，第二，第三和第四线圈被卷绕在公共磁芯上。 本发明适用于在飞机上使用的转换器。

公开(公告)号：US20070242490A1

公开(公告)日：2007-10-18

申请号：US11206748

申请日：2005-08-19

申请人： Louis Cheng

发明人： Louis Cheng

IPC分类号： H02M5/42

CPC分类号： H02P27/08 ,  H02P25/092

摘要： A device that includes an active rectifier (14) having control gates controllable to produce an output voltage on a DC bus (20), a gate control circuit (16) for producing gate control signals for controlling the active rectifier control gates, a first circuit (18) connected to the gate control circuit (16) and producing a command current magnitude signal and a power factor signal for use by the gate control circuit (16), a current line (30) providing a current related to the DC load current to the first circuit (16), and a voltage line (32) providing a voltage related to the DC bus voltage to the first circuit (16), the first circuit (16) including a peak detector (64) detecting current peaks on the DC bus (20), a command current magnitude signal generator (34) commanding a current as a function of the detected peaks, and a power factor controller (33, 40) varying the power factor signal (42) to control the voltage on the DC bus (20). Also a method of controlling voltage on a DC bus (20) based on peak current detected on the bus.

摘要翻译： 一种包括有源整流器（14）的装置，其具有可控制的控制栅极，以在DC总线（20）上产生输出电压;栅极控制电路（16），用于产生用于控制有源整流器控制栅极的栅极控制信号;第一电路 （18），连接到所述门控制电路（16），并产生指令电流幅度信号和由所述门控制电路（16）使用的功率因数信号;提供与所述直流负载电流相关的电流的电流线（30） 至所述第一电路（16）以及向所述第一电路（16）提供与所述DC总线电压有关的电压的电压线（32），所述第一电路（16）包括峰值检测器（64） DC总线（20），指令电流作为检测到的峰值的函数的指令电流幅度信号发生器（34），和改变功率因数信号（42）的功率因数控制器（33,40），以控制电压 直流母线（20）。 还有一种基于总线上检测到的峰值电流来控制DC总线（20）上的电压的方法。