公开(公告)号：US07054176B2

公开(公告)日：2006-05-30

申请号：US11047154

申请日：2005-01-31

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： H02M7/48

CPC分类号： H02M7/538 ,  H02M7/4826 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A multi-stage, push-pull driven, resonant DC-AC converter ties the center-taps of primary windings of respective push-pull stages together, and drives each center-tap with a current source. Tying the center-taps of the primary windings of the respective DC-AC converters' transformers together forces the voltages at these locations to be the same, so as to achieve mutual resonant synchronization between the two stages. Connecting the center-taps to a current source provides the necessary power for each stage and allows for a variation in current between stages, as the center-tap voltages track one another. The tied-together center-tap voltage is monitored to obtain the zero voltage switching required for efficient operation of switching devices of each DC-AC converter stage.

摘要翻译： 多级推挽驱动谐振DC-AC转换器将各推挽级的初级绕组的中心抽头连接在一起，并用电流源驱动每个中心抽头。 将各个DC-AC转换器的变压器的初级绕组的中心抽头捆绑在一起迫使这些位置处的电压相同，以便实现两个级之间的相互谐振同步。 将中心抽头连接到电流源为每个级提供必要的功率，并允许级间之间的电流变化，因为中心抽头电压彼此跟踪。 监控并联的中心抽头电压，以获得每个DC-AC转换器级的开关器件有效运行所需的零电压开关。

公开(公告)号：US07138789B2

公开(公告)日：2006-11-21

申请号：US10852603

申请日：2004-05-24

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： G05F1/40

CPC分类号： H02M3/1584 ,  H02M3/1588 ,  Y02B70/1425 ,  Y02B70/1466

摘要： A multiphase DC-to-DC converter includes at least two phase circuits each having upper and lower power switches and a front-end inductor that is operative for forming a resonant tank circuit with the phase circuits to ensure zero voltage switching and minimizing power losses.

摘要翻译： 多相DC-DC转换器包括至少两个相位电路，每个相电路具有上和下功率开关，前端电感器用于与相电路形成谐振回路以确保零电压切换并最小化功率损耗。

公开(公告)号：US20060092677A1

公开(公告)日：2006-05-04

申请号：US11047154

申请日：2005-01-31

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： H02M7/48

CPC分类号： H02M7/538 ,  H02M7/4826 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A multi-stage, push-pull driven, resonant DC-AC converter ties the center-taps of primary windings of respective push-pull stages together, and drives each center-tap with a current source. Tying the center-taps of the primary windings of the respective DC-AC converters' transformers together forces the voltages at these locations to be the same, so as to achieve mutual resonant synchronization between the two stages. Connecting the center-taps to a current source provides the necessary power for each stage and allows for a variation in current between stages, as the center-tap voltages track one another. The tied-together center-tap voltage is monitored to obtain the zero voltage switching required for efficient operation of switching devices of each DC-AC converter stage.

摘要翻译： 多级推挽驱动谐振DC-AC转换器将各推挽级的初级绕组的中心抽头连接在一起，并用电流源驱动每个中心抽头。 将各个DC-AC转换器的变压器的初级绕组的中心抽头捆绑在一起迫使这些位置处的电压相同，以便实现两个级之间的相互谐振同步。 将中心抽头连接到电流源为每个级提供必要的功率，并允许级间之间的电流变化，因为中心抽头电压彼此跟踪。 监控并联的中心抽头电压，以获得每个DC-AC转换器级的开关器件有效运行所需的零电压开关。

公开(公告)号：US20060012352A1

公开(公告)日：2006-01-19

申请号：US10962088

申请日：2004-10-07

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： G05F1/618

CPC分类号： H02M3/1584

摘要： A multiphase sliding-mode switching power supply (24) and a method of operating the power supply (24) are provided. A switch (30) for each phase (28) is coupled to a bipolar power source (22), with each switch (30) effecting one phase (28). An inductance (32) is coupled to each switch (30), and a capacitance (36) is coupled to the inductances (32). A load (26) is coupled across the capacitance (36). A sliding-surface generator (78) is coupled to the monitor circuit (38) and generates a single sliding surface (σ) for all phases (28). A translation circuit (102) is coupled to the sliding-surface generator (78) and configured to translate the sliding surface (σ) into a stream of switching pulses (86). A transient control (52) is coupled to the translation circuit (102) and configured to adjust said stream of switching pulses upon detection of an out-of-range transient. A switching circuit (138) is coupled to the switches (30) and the transient control (52), and switches the switches (30) in response to the stream of switching pulses (86).

摘要翻译： 提供多相滑模开关电源（24）和操作电源（24）的方法。 每个相（28）的开关（30）耦合到双极电源（22），每个开关（30）实现一相（28）。 电感（32）耦合到每个开关（30），并且电容（36）耦合到电感（32）。 负载（26）跨过电容（36）耦合。 滑动表面发生器（78）耦合到监视器电路（38）并为所有相（28）产生单个滑动表面（sigma）。 平移电路（102）耦合到滑动表面发生器（78）并被配置为将滑动表面（sigma）转换成开关脉冲流（86）。 瞬态控制（52）耦合到平移电路（102）并被配置为在检测到超出范围的瞬变时调节所述开关脉冲流。 开关电路（138）耦合到开关（30）和瞬态控制（52），并且响应于开关脉冲流（86）而切换开关（30）。

公开(公告)号：US07282897B2

公开(公告)日：2007-10-16

申请号：US10962088

申请日：2004-10-07

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： G05F1/40

CPC分类号： H02M3/1584

摘要： A multiphase sliding-mode switching power supply (24) and a method of operating the power supply (24) are provided. A switch (30) for each phase (28) is coupled to a bipolar power source (22), with each switch (30) effecting one phase (28). An inductance (32) is coupled to each switch (30), and a capacitance (36) is coupled to the inductances (32). A load (26) is coupled across the capacitance (36). A sliding-surface generator (78) is coupled to the monitor circuit (38) and generates a single sliding surface (σ) for all phases (28). A translation circuit (102) is coupled to the sliding-surface generator (78) and configured to translate the sliding surface (σ) into a stream of switching pulses (86). A transient control (52) is coupled to the translation circuit (102) and configured to adjust said stream of switching pulses upon detection of an out-of-range transient. A switching circuit (138) is coupled to the switches (30) and the transient control (52), and switches the switches (30) in response to the stream of switching pulses (86).

摘要翻译： 提供多相滑模开关电源（24）和操作电源（24）的方法。 每个相（28）的开关（30）耦合到双极电源（22），每个开关（30）实现一相（28）。 电感（32）耦合到每个开关（30），并且电容（36）耦合到电感（32）。 负载（26）跨过电容（36）耦合。 滑动表面发生器（78）耦合到监视器电路（38）并为所有相（28）产生单个滑动表面（sigma）。 平移电路（102）耦合到滑动表面发生器（78）并被配置为将滑动表面（sigma）转换成开关脉冲流（86）。 瞬态控制（52）耦合到平移电路（102）并被配置为在检测到超出范围的瞬变时调节所述开关脉冲流。 开关电路（138）耦合到开关（30）和瞬态控制（52），并且响应于开关脉冲流（86）而切换开关（30）。

公开(公告)号：US20050156579A1

公开(公告)日：2005-07-21

申请号：US10852603

申请日：2004-05-24

申请人： Zaki Moussaoui ,  Thomas Victorin

发明人： Zaki Moussaoui ,  Thomas Victorin

IPC分类号： H02M3/158 ,  H02M1/12

CPC分类号： H02M3/1584 ,  H02M3/1588 ,  Y02B70/1425 ,  Y02B70/1466

摘要： A multiphase DC-to-DC converter includes at least two phase circuits each having upper and lower power switches and a front-end inductor that is operative for forming a resonant tank circuit with the phase circuits to ensure zero voltage switching and minimizing power losses.

摘要翻译： 多相DC-DC转换器包括至少两个相位电路，每个相电路具有上和下功率开关，前端电感器用于与相电路形成谐振回路以确保零电压切换并最小化功率损耗。

公开(公告)号：US08570006B2

公开(公告)日：2013-10-29

申请号：US13303702

申请日：2011-11-23

申请人： Zaki Moussaoui ,  Jun Liu

发明人： Zaki Moussaoui ,  Jun Liu

IPC分类号： G05F1/40

CPC分类号： H02M3/1582 ,  H02M2001/0003

摘要： A circuit, device, and method for controlling a buck-boost circuit includes a bootstrap capacitor voltage regulator circuit and a comparator circuit. The bootstrap capacitor voltage regulator circuit is electrically coupled to a buck-mode bootstrap capacitor of the buck-boost converter and to a boost-mode bootstrap capacitor of the buck-boost converter. The comparator circuit is configured to control the bootstrap capacitor voltage regulator circuit to maintain a voltage of the bootstrap capacitors above a reference threshold voltage by transferring an amount energy from one of the bootstrap capacitors to the other bootstrap capacitors based on the particular mode of operation of the buck-boost converter.

摘要翻译： 用于控制降压 - 升压电路的电路，装置和方法包括自举电容器电压调节器电路和比较器电路。 自举电容器电压调节器电路电耦合到降压 - 升压转换器的降压模式自举电容器和降压 - 升压转换器的升压模式自举电容器。 比较器电路被配置为通过基于特定的操作模式将自举电容器电压调节器电路保持自举电容器的电压高于参考阈值电压，通过从自举电容器中的一个向另一个自举电容器传输一定量的能量 降压 - 升压转换器。

公开(公告)号：US08552703B2

公开(公告)日：2013-10-08

申请号：US13109299

申请日：2011-05-17

申请人： Jun Liu ,  Zaki Moussaoui ,  Kenneth L. Lenk

发明人： Jun Liu ,  Zaki Moussaoui ,  Kenneth L. Lenk

IPC分类号： G05F1/00

CPC分类号： G05F1/56 ,  H02M3/1588 ,  H02M2001/0032 ,  H02M2001/0045 ,  Y02B70/1466 ,  Y02B70/16

摘要： A regulator controller which controls conversion of an input voltage to an output voltage, including a switching regulator, a low dropout (LDO) regulator, and a mode controller. The switching regulator develops a pulse control signal to regulate the output voltage when enabled. The LDO regulator also regulates the output voltage when enabled. The mode controller enables or disables the switching regulator and the LDO regulator based on a load condition. The switching regulator is enabled and the LDO regulator is disabled during normal operation. The LDO regulator is enabled when the low load condition is detected, such as a skipped pulse on the pulse control signal. The switching regulator is disabled when the pulse control signal reaches a minimum level. The LDO regulator is disabled and the switching regulator is re-enabled based on threshold conditions of the current output of the LDO regulator.

摘要翻译： 调节器控制器，其控制输入电压到输出电压的转换，包括开关稳压器，低压差（LDO）调节器和模式控制器。 开关稳压器产生脉冲控制信号，以便在使能时调节输出电压。 LDO调节器在使能时也调节输出电压。 模式控制器根据负载条件启用或禁用开关稳压器和LDO稳压器。 开关稳压器使能，LDO稳压器在正常工作期间被禁止。 当检测到低负载条件时，例如脉冲控制信号上的跳过脉冲，LDO稳压器被使能。 当脉冲控制信号达到最小电平时，开关稳压器被禁止。 LDO稳压器被禁止，并且基于LDO稳压器的电流输出的阈值条件重新使能开关稳压器。

公开(公告)号：US08552699B2

公开(公告)日：2013-10-08

申请号：US13286346

申请日：2011-11-01

申请人： Zaki Moussaoui ,  Jifeng Qin ,  Colm Brazil

发明人： Zaki Moussaoui ,  Jifeng Qin ,  Colm Brazil

IPC分类号： G05F1/613 ,  G05F1/00

CPC分类号： H02M1/44 ,  H02M3/156 ,  H02M2001/0058 ,  Y02B70/1491

摘要： An EMI reduction network for a converter, the converter including upper and lower power switches provided between an input voltage node and a reference node. An inductance is coupled between the input voltage node and the upper switch at a first node, a capacitance and an auxiliary power switch are coupled in series between the first and reference nodes, and a controller is provided to control switching. The controller switches the upper switch based on a PWM signal. The controller keeps the lower switch turned on until the phase node goes positive while the upper switch is on. The controller turns the auxiliary switch on after the lower power switch is turned off and turns the auxiliary switch off after the upper power switch is turned off. The lower and auxiliary switches may be zero voltage switched, and the upper switch may be zero current switched.

摘要翻译： 一种用于转换器的EMI降低网络，该转换器包括设置在输入电压节点和参考节点之间的上和下功率开关。 电感耦合在第一节点处的输入电压节点和上部开关之间，电容和辅助电力开关串联耦合在第一参考节点和参考节点之间，并且提供控制器来控制切换。 控制器根据PWM信号切换上部开关。 控制器保持下部开关打开，直到相位节点变为正，而上部开关打开。 在下电源开关关闭后，控制器打开辅助开关，并在上电源开关关闭后关闭辅助开关。 下部和辅助开关可以是零电压切换，并且上部开关可以是零电流切换。

公开(公告)号：US20120049820A1

公开(公告)日：2012-03-01

申请号：US13094007

申请日：2011-04-26

申请人： Zaki Moussaoui ,  Jifeng Qin ,  Joseph Buxton

发明人： Zaki Moussaoui ,  Jifeng Qin ,  Joseph Buxton

IPC分类号： G05F1/618

CPC分类号： H02M1/36 ,  H02M3/1582

摘要： A system and method for reducing negative inductor current during soft start of a bidirectional direct current (DC)-to-DC converter is provided. Typically, the bidirectional DC-to-DC converter includes an active switch and a passive switch. The system employs a soft start circuit that controls the duty cycle of the passive switch during soft start of the active switch. In one aspect, the soft start circuit gradually increases the duty cycle of the passive switch from zero to a steady state value, and provides a soft start for the passive switch concurrently/simultaneously during the soft start of the active switch. Moreover, the soft start circuit disclosed herein can avoid the reverse transient inductor current during start-up, prevent system damage and make the design of the bidirectional DC-to-DC converter more robust.

摘要翻译： 提供了一种用于在双向直流（DC）至DC转换器的软启动期间减小负电感电流的系统和方法。 通常，双向DC-DC转换器包括有源开关和无源开关。 该系统采用软起动电路，在有源开关的软启动期间控制无源开关的占空比。 在一个方面，软启动电路逐渐将无源开关的占空比从零增加到稳态值，并且在有源开关的软启动期间同时/同时提供无源开关的软启动。 此外，本文公开的软启动电路可以避免启动期间的反向瞬态电感器电流，防止系统损坏并且使双向DC-DC转换器的设计更加坚固。