公开(公告)号：US08035536B2

公开(公告)日：2011-10-11

申请号：US11937459

申请日：2007-11-08

申请人： Zhen Z. Ye ,  Milan M. Jovanovic

发明人： Zhen Z. Ye ,  Milan M. Jovanovic

IPC分类号： H03M5/02

CPC分类号： H02M1/4233 ,  Y02B70/126 ,  Y02P80/112

摘要： A robust decoder generates an output state from input signals related to the line-voltage signals of a three-phase power system, using a segment identification method based on zero-crossings derived from line-voltage difference signals. The robust decoder includes a basic decoder that provides a current output state based on the input signals, a state table that provides a presumed previous state based on the current output state of the basic decoder, a binary feed back loop including a state element for storing a previous output state, and a selector for providing the output state based on the stored previous output state and the presumed previous state. The robust decoder may be implemented as hardware or software in a digital power converter. Such a digital power converter may include boost inductors each receiving an input line voltage signal from the three-phase power system to provide phase voltage signals, switches receiving the phase voltage signals to provide an intermediate voltage signal, the plurality of switches each being control by a driving signal, an output circuit coupled to the intermediate voltage signal to provide a rectified output voltage signal for digital power converter, and a digital control circuit receiving the input line voltages and the output voltage signal, the digital control circuit generating the driving signals to control the switches. The switches may be configured according to a state machine.

摘要翻译： 稳健的解码器使用基于从线电压差信号导出的过零点的段识别方法，从与三相电力系统的线路电压信号相关的输入信号产生输出状态。 鲁棒解码器包括基于输入信号提供当前输出状态的基本解码器，基于基本解码器的当前输出状态提供推定的先前状态的状态表，包括用于存储的状态元素的二进制反馈回路 先前的输出状态，以及选择器，用于基于存储的先前输出状态和推测的先前状态来提供输出状态。 鲁棒解码器可以被实现为数字功率转换器中的硬件或软件。 这样的数字功率转换器可以包括升压电感器，每个升压电感器接收来自三相电力系统的输入线路电压信号以提供相电压信号，接收相电压信号的开关以提供中间电压信号，多个开关各自由 驱动信号，耦合到中间电压信号的输出电路，为数字功率转换器提供整流输出电压信号;以及数字控制电路，接收输入线电压和输出电压信号，数字控制电路产生驱动信号 控制开关。 开关可以根据状态机配置。

公开(公告)号：US20110175584A1

公开(公告)日：2011-07-21

申请号：US12689556

申请日：2010-01-19

申请人： Laszlo Huber ,  Milan M. Jovanovic ,  Chien-Chung Chang

发明人： Laszlo Huber ,  Milan M. Jovanovic ,  Chien-Chung Chang

IPC分类号： G05F1/10

CPC分类号： H02M3/158 ,  H02M3/156

摘要： A power supply having an input and an output, includes a power converter coupled between the input and output of the power supply including at least one switch that is controlled by comparing a sensed voltage, the sensed voltage corresponding to a current flowing through the switch, to a reference voltage. A controller, in response to a change detected in a switching frequency of the switch, reduces audible noise generated by the power supply by at least one of: adjusting the reference voltage; adjusting the current sense voltage; or adjusting a resistance used to generate the sensed voltage.

摘要翻译： 具有输入和输出的电源包括耦合在电源的输入和输出之间的功率转换器，其包括至少一个开关，所述至少一个开关通过比较感测的电压，对应于流过开关的电流的感测电压， 到参考电压。 控制器响应于在开关的开关频率中检测到的变化，通过以下至少一个来降低由电源产生的可听噪声：调整参考电压; 调整电流检测电压; 或调整用于产生感测电压的电阻。

公开(公告)号：US20090303762A1

公开(公告)日：2009-12-10

申请号：US12479430

申请日：2009-06-05

申请人： Yungtaek Jang ,  Milan M. Jovanovic

发明人： Yungtaek Jang ,  Milan M. Jovanovic

IPC分类号： H02M7/00

CPC分类号： H02M1/4208 ,  Y02B70/126 ,  Y02P80/112

摘要： A PFC rectifier comprises a first converter having a first output capacitor and a second converter having a second output capacitor. The he first and second capacitors are coupled to each other to increase the output voltage of the PFC rectifier. Fore example the first or second output capacitors can be serially coupled to each other. At least one or both of the first or second converters comprise buck or buck-boost converters, including inverting or non-inverter buck converters. The first and second converters can also form a bi-directional ac-ac inverter.

摘要翻译： PFC整流器包括具有第一输出电容器的第一转换器和具有第二输出电容器的第二转换器。 他的第一和第二电容器彼此耦合以增加PFC整流器的输出电压。 例如，第一或第二输出电容器可以彼此串联耦合。 第一或第二转换器中的至少一个或两个包括降压或降压 - 升压转换器，包括反相或非逆变器降压转换器。 第一和第二转换器也可以形成双向ac-ac逆变器。

公开(公告)号：US20090271642A1

公开(公告)日：2009-10-29

申请号：US12427192

申请日：2009-04-21

申请人： Bruce C. H. Cheng ,  Chi-Hsing Huang ,  Milan M. Jovanovic

发明人： Bruce C. H. Cheng ,  Chi-Hsing Huang ,  Milan M. Jovanovic

IPC分类号： G06F1/00

CPC分类号： H02J1/102 ,  G06F1/263 ,  H02J1/14 ,  Y10T307/305 ,  Y10T307/391 ,  Y10T307/406 ,  Y10T307/50 ,  Y10T307/549 ,  Y10T307/555

摘要： The present invention relates to a power management system comprising at least one power management subsystem. Each power management subsystem comprises a first power module coupled to a first load and comprising at least one first power supply for supplying power to the first load; a second power module coupled to a second load and comprising at least one second power supply, wherein at least one second power supply is retractably installed in the second power module and selectively coupled to the second load; and a pass-through module comprising at least one pass-through unit retractably installed in the second power module to replace with the at least one second power supply and selectively connecting the first power module to the second load for allowing the first power module to supply power to the second load.

摘要翻译： 电源管理系统技术领域本发明涉及包括至少一个电力管理子系统的电力管理系统。 每个电源管理子系统包括耦合到第一负载的第一电源模块，并且包括用于向第一负载供电的至少一个第一电源; 耦合到第二负载并且包括至少一个第二电源的第二电力模块，其中至少一个第二电源可缩回地安装在所述第二电力模块中并且选择性地耦合到所述第二负载; 以及直通模块，包括至少一个直通单元，其可收缩地安装在所述第二电力模块中以替换所述至少一个第二电源，并且将所述第一电力模块选择性地连接到所述第二负载，以允许所述第一电力模块供应 电力到第二负载。

公开(公告)号：US06504497B2

公开(公告)日：2003-01-07

申请号：US09855715

申请日：2001-05-16

申请人： Yungtaek Jang ,  Milan M. Jovanovic

发明人： Yungtaek Jang ,  Milan M. Jovanovic

IPC分类号： H03M100

CPC分类号： H02J7/345 ,  H02M2001/007 ,  H02M2001/0096

摘要： The stored energy in the energy-storage capacitors of a power supply during the hold-up time is improved by providing two groups of energy storage capacitors, and by connecting one group of capacitors to the input of a hold-up-time extension circuit that has its output connected to the other group of energy-storage capacitors. Each group of energy-storage capacitors may consist of a single capacitor, or a number of capacitors connected in parallel. The hold-up-time extension circuit is designed so that its output is regulated at a voltage that is lower than the minimum regulation voltage of the output-stage dc/dc converter. As a result, the hold-up-time extension circuit is inactive during the normal operation mode. i.e., when the input voltage is present. In fact, during the normal operation mode both groups of capacitors are effectively connected in parallel so that their voltages are equal.

公开(公告)号：US06356462B1

公开(公告)日：2002-03-12

申请号：US09775636

申请日：2001-02-05

申请人： Yungtaek Jang ,  Milan M. Jovanovic

发明人： Yungtaek Jang ,  Milan M. Jovanovic

IPC分类号： H02M3335

CPC分类号： H02M3/33569

摘要： A family of soft-switched, full-bridge pulse-width-modulated (FB PWM) converters provides zero-voltage-switching (ZVS) conditions for the turn-on of the bridge switches over a wide range of input voltage and output load. The FB PWM converters of this family achieve ZVS with the minimum duty cycle loss and circulating current, which optimizes the conversion efficiency. The ZVS of the primary switches is achieved by employing two magnetic components whose volt-second products change in the opposite directions with a change in phase shift between the two bridge legs. One magnetic component always operates as a transformer, where the other magnetic component can either be a coupled inductor, or uncoupled (single-winding) inductor. The transformer is used to provide isolated output(s), whereas the inductor is used to store the energy for ZVS.

摘要翻译： 一系列软开关，全桥脉宽调制（FB PWM）转换器为宽范围的输入电压和输出负载的桥接开关提供零电压开关（ZVS）条件。 该系列的FB PWM转换器以最小的占空比损耗和循环电流实现ZVS，从而优化了转换效率。 初级开关的ZVS通过使用两个磁性部件来实现，其中伏特产品在相反方向上改变，两个桥臂之间的相移发生变化。 一个磁性部件总是作为变压器工作，其中另一个磁性部件可以是耦合电感器或非耦合（单绕组）电感器。 变压器用于提供隔离输出，而电感用于存储ZVS的能量。

公开(公告)号：US6049473A

公开(公告)日：2000-04-11

申请号：US249743

申请日：1999-02-11

申请人： Yungtaek Jang ,  Milan M. Jovanovic

发明人： Yungtaek Jang ,  Milan M. Jovanovic

IPC分类号： H02M1/00 ,  H02M1/42 ,  H02M5/42

CPC分类号： H02M1/4216 ,  H02M1/4258 ,  Y02B70/126

摘要： A three-phase discontinuous-conduction-mode (DCM), pulse-width-modulated (PWM) boost rectifier using harmonic-injection control is provided with a feedforward path to vary the duty cycle of the PWM modulator according to the input voltage, so as to provide improved transient response. In one embodiment, the feedforward path provides to the PWM modulator a ramp voltage that has a slope proportional to the magnitude of the input line voltage. In one embodiment, the harmonic injection signal is summed with the error signal of an output feedback loop. In another embodiment, the harmonic injection signal is integrated and summed with the ramp voltage of the feedforward path. Moreover, by adding a nonlinear gain control circuit, the DC gain of the DCM boost rectifier at light load is adaptively reduced to achieve stability of the rectifier at light load.

摘要翻译： 提供使用谐波注入控制的三相不连续导通模式（DCM），脉冲宽度调制（PWM）升压整流器，其具有根据输入电压来改变PWM调制器的占空比的前馈路径，因此 以提供改善的瞬态响应。 在一个实施例中，前馈路径向PWM调制器提供斜坡电压，该斜坡电压具有与输入线电压的幅度成比例的斜率。 在一个实施例中，谐波注入信号与输出反馈回路的误差信号相加。 在另一个实施例中，谐波注入信号被积分并与前馈路径的斜坡电压相加。 此外，通过添加非线性增益控制电路，轻载时DCM升压整流器的直流增益自适应降低，以实现轻载时整流器的稳定性。

公开(公告)号：US20120284539A1

公开(公告)日：2012-11-08

申请号：US13537483

申请日：2012-06-29

申请人： Bruce C.H. Cheng ,  Chi-Hsing Huang ,  Milan M. Jovanovic

发明人： Bruce C.H. Cheng ,  Chi-Hsing Huang ,  Milan M. Jovanovic

IPC分类号： G06F1/26

CPC分类号： H02J1/102 ,  G06F1/263 ,  H02J1/14 ,  Y10T307/305 ,  Y10T307/391 ,  Y10T307/406 ,  Y10T307/50 ,  Y10T307/549 ,  Y10T307/555

摘要： The present invention relates to a power management system comprising at least one power management subsystem. Each power management subsystem comprises a first power module coupled to a first load and comprising at least one first power supply for supplying power to the first load; a second power module coupled to a second load and comprising at least one second power supply, wherein at least one second power supply is retractably installed in the second power module and selectively coupled to the second load; and a pass-through module comprising at least one pass-through unit retractably installed in the second power module to replace with the at least one second power supply and selectively connecting the first power module to the second load for allowing the first power module to supply power to the second load.

摘要翻译： 电源管理系统技术领域本发明涉及包括至少一个电力管理子系统的电力管理系统。 每个电源管理子系统包括耦合到第一负载的第一电源模块，并且包括用于向第一负载供电的至少一个第一电源; 耦合到第二负载并且包括至少一个第二电源的第二电力模块，其中至少一个第二电源可缩回地安装在所述第二电力模块中并且选择性地耦合到所述第二负载; 以及直通模块，包括至少一个直通单元，其可收缩地安装在所述第二电力模块中以替换所述至少一个第二电源，并且将所述第一电力模块选择性地连接到所述第二负载，以允许所述第一电力模块供应 电力到第二负载。

公开(公告)号：US20110006748A1

公开(公告)日：2011-01-13

申请号：US12501031

申请日：2009-07-10

申请人： Yungtaek Jang ,  Milan M. Jovanovic ,  Yi-Hsin Leu ,  Ming-Tsung Hsieh ,  Wei-Hsin Wen ,  Chi-Hsing Huang

发明人： Yungtaek Jang ,  Milan M. Jovanovic ,  Yi-Hsin Leu ,  Ming-Tsung Hsieh ,  Wei-Hsin Wen ,  Chi-Hsing Huang

IPC分类号： G05F5/00

CPC分类号： H02M1/36 ,  H02M1/4225 ,  Y02B70/126

摘要： A power supply comprises an input voltage detector that detects a drop in input voltage that corresponds to an input voltage loss. A power converter is coupled to the input voltage detector. The power converter, which may be a boost converter or a power factor correction converter, has a switching device that is actuated in accordance with a duty cycle. A duty cycle adjuster is responsive to detection of the drop in the input voltage to adjust the duty cycle of the switching device in order to limit an input current surge through the switching device below a desired level after the input voltage returns.

摘要翻译： 电源包括输入电压检测器，其检测对应于输入电压损失的输入电压的下降。 功率转换器耦合到输入电压检测器。 功率转换器（其可以是升压转换器或功率因数校正转换器）具有根据占空比被致动的开关器件。 占空比调节器响应于检测输入电压的下降以调整开关器件的占空比，以便在输入电压返回之后将开关器件的输入电流浪涌限制在期望的电平以下。

公开(公告)号：US20100253234A1

公开(公告)日：2010-10-07

申请号：US12416687

申请日：2009-04-01

申请人： Yuequan Hu ,  Milan M. Jovanovic

发明人： Yuequan Hu ,  Milan M. Jovanovic

IPC分类号： H05B41/04

CPC分类号： H05B41/2881 ,  H05B41/388

摘要： The current invention provides a power supply that includes an igniter that generates an ignition voltage for igniting a DC lamp; an auxiliary power stage that outputs an auxiliary voltage for sustaining sufficient current in the DC lamp after the DC lamp is ignited; a voltage conversion stage coupled to the auxiliary power stage and generating a voltage at a level that is higher than the auxiliary voltage; and a switch that couples the auxiliary voltage to the DC lamp and the voltage conversion stage for a predefined period of time.

摘要翻译： 本发明提供了一种电源，其包括产生用于点燃DC灯的点火电压的点火器; 辅助功率级，其在DC灯点燃之后输出用于在DC灯中维持足够电流的辅助电压; 电压转换级，耦合到辅助功率级，并产生高于辅助电压的电平; 以及将辅助电压耦合到DC灯和电压转换级一段预定时间段的开关。