公开(公告)号：US06314006B1

公开(公告)日：2001-11-06

申请号：US09651400

申请日：2000-08-29

申请人： Reinhold Berberich ,  Andreas Fürbeth

发明人： Reinhold Berberich ,  Andreas Fürbeth

IPC分类号： H02M3337

CPC分类号： H02M3/33584

摘要： In a DC/DC converter for producing a DC voltage from a supplied DC voltage with a reversible direction of action, a transformer operating in push-pull on the primary and secondary sides, the respective center taps are connected to a first terminal for the respective DC voltage, and further winding terminals are each connected via a semiconductor switch to a second terminal for the respective DC voltage, the semiconductor switches being controlled synchronously in pairs.

摘要翻译： 在DC / DC转换器中，用于从提供的具有可逆方向的直流电压产生直流电压，变压器在一次侧和次侧的推挽中工作，相应的中心抽头连接到第一端，用于相应的 直流电压和另外的绕组端子各自经由半导体开关连接到用于相应DC电压的第二端子，所述半导体开关成对地同步地被控制。

公开(公告)号：US06714426B1

公开(公告)日：2004-03-30

申请号：US10287215

申请日：2002-11-04

申请人： Yigang Guo ,  Eric Yang

发明人： Yigang Guo ,  Eric Yang

IPC分类号： H02M3337

CPC分类号： H02M3/1584

摘要： A multiple-phase power converter comprises a non-isolated, double-ended transformer having a plurality of windings, a high-side switch portion, a low-side switch portion, an output portion, and a controller. The high-side switch portion includes a first power switch connecting an input voltage source (VIN) to a virtual phase node through a first winding of the plurality of windings and a second power switch connecting the input voltage source to the virtual phase node through a second winding of the plurality of windings. The first and second windings are arranged with opposite polarity. The low-side switch portion includes a third power switch connecting the virtual phase node to ground through a third winding of the plurality of windings and a fourth power switch connecting the virtual phase node to ground through a fourth winding of the plurality of windings. The third and fourth windings are arranged with opposite polarity. The output portion includes an output inductor connecting the virtual phase node to an output terminal providing an output voltage (VOUT). The controller is adapted to control operations of the first, second, third and fourth power switches such that the first and second power switches are enabled in respective alternating phases. The third switch is disabled when the second switch is enabled so that current flows concurrently through both the second and fourth windings to the output inductor during a first phase, and the fourth switch is disabled when the first switch is enabled so that current flows concurrently through the first and third windings to the output inductor.

摘要翻译： 多相功率转换器包括具有多个绕组的非隔离双端变压器，高侧开关部分，低侧开关部分，输出部分和控制器。 高侧开关部分包括通过多个绕组的第一绕组将输入电压源（VIN）连接到虚拟相位节点的第一电源开关和通过以下步骤连接输入电压源到虚拟相位节点的第二电源开关 多个绕组的第二绕组。 第一和第二绕组以相反的极性布置。 低侧开关部分包括通过多个绕组的第三绕组将虚拟相位节点连接到地的第三电力开关和通过多个绕组的第四绕组将虚拟相位节点连接到地的第四电力开关。 第三和第四绕组的极性相反。 输出部分包括将虚拟相位节点连接到提供输出电压（VOUT）的输出端子的输出电感器。 控制器适于控制第一，第二，第三和第四功率开关的操作，使得第一和第二功率开关在相应的交替相位中被使能。 当第二开关被使能时，第三开关被禁止，使得电流在第一阶段期间同时流过第二和第四绕组到输出电感器，并且当第一开关被使能时第四开关被禁用，使得电流同时流过 第一和第三绕组到输出电感。

公开(公告)号：US06178099B1

公开(公告)日：2001-01-23

申请号：US09545449

申请日：2000-04-07

申请人： Michael Joseph Schutten ,  Vlatko Vlatkovic ,  William Frederick Wirth

发明人： Michael Joseph Schutten ,  Vlatko Vlatkovic ,  William Frederick Wirth

IPC分类号： H02M3337

CPC分类号： H02M3/3376 ,  H02M2001/0058 ,  H02M2007/53878 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

摘要： An optimal phase-shifted control for a series resonant converter involves instantaneous monitoring of state variables (resonant capacitor voltage resonant inductor current and output voltage) and implementation of a control law for providing a quasi-squarewave-with-maximum-coasting (QSWMC) mode of operation. The control law uses the instantaneous resonant inductor current, the instantaneous resonant capacitor voltage and the output voltage to determine the optimal time to perform switching events in order to operate on a desired control trajectory. The QSWMC converter operates at a minimized frequency in a super-resonant mode with zero-voltage switching, minimized electrical stresses, and reduced electromagnetic interference due to nearly sinusoidal resonant tank currents.

摘要翻译： 用于串联谐振转换器的最佳相移控制包括对状态变量（谐振电容器电压谐振电感器电流和输出电压）的瞬时监测以及用于提供准方波最大惯性（QSWMC）模式的控制律的实现 的操作。 控制律使用瞬时谐振电感电流，瞬时谐振电容电压和输出电压来确定执行切换事件的最佳时间，以便在所需的控制轨迹上运行。 QSWMC转换器在具有零电压开关，最小化电应力的超谐振模式中以最小频率工作，并且由于几乎正弦谐振槽电流而导致的电磁干扰减小。