公开(公告)号：US5844790A

公开(公告)日：1998-12-01

申请号：US906539

申请日：1997-08-05

申请人： Mark E. Jacobs ,  Yimin Jiang

发明人： Mark E. Jacobs ,  Yimin Jiang

IPC分类号： H02M1/12 ,  H02M1/44 ,  H02M3/158

CPC分类号： H02M1/44 ,  H02M1/12 ,  H02M3/158 ,  H02M2001/009 ,  Y10T307/653

摘要： For use in a split-boost converter having a DC input, first and second outputs, a power train interposed between the DC input and the first and second outputs, a damped electromagnetic interference (EMI) filter circuit and method of reducing the EMI. In one embodiment, the EMI filter circuit includes (1) an EMI filter interposed between the power train and the second output, the EMI filter subject to oscillation from line disturbances arriving at the DC input and (2) a conductive path, coupling a rail of the second output to the DC input, that routes at least a portion of the line disturbances from the DC input directly to the second output to damp the oscillation of the EMI filter.

摘要翻译： 为了在具有DC输入，第一和第二输出的分压升压转换器中使用介于DC输入与第一和第二输出之间的动力传动系，阻尼电磁干扰（EMI）滤波器电路和减小EMI的方法。 在一个实施例中，EMI滤波器电路包括（1）介于传动系和第二输出之间的EMI滤波器，EMI滤波器受到到达DC输入的线路干扰的振荡，以及（2）导电路径， 的第二输出到DC输入，其将至少一部分线路干扰从DC输入直接传送到第二输出以阻尼EMI滤波器的振荡。

公开(公告)号：US5784269A

公开(公告)日：1998-07-21

申请号：US804313

申请日：1997-02-21

申请人： Mark E. Jacobs ,  Yimin Jiang

发明人： Mark E. Jacobs ,  Yimin Jiang

IPC分类号： H02M1/00 ,  H02M1/42 ,  H02M3/158 ,  H02H7/122

CPC分类号： H02M1/4216 ,  H02M3/158 ,  Y02B70/126

摘要： For use in a DC/DC converter fed by a three phase rectifier, an active circuit and method for delivering an inner phase of three phase AC input power provided to the rectifier and a power converter employing the active circuit or the method. The active circuit includes: (1) a phase selection switching circuit, coupled to the rectifier, that selects an inner phase of the three phase AC input power and (2) a switching network, coupled to the phase selection switching circuit, that controls a waveshape of at least the inner phase to the DC/DC converter thereby to reduce harmonics associated with the three phase AC input power.

摘要翻译： 用于由三相整流器馈送的DC / DC转换器，用于传送提供给整流器的三相AC输入功率的内相的有源电路和方法以及采用有源电路或方法的功率转换器。 有源电路包括：（1）耦合到整流器的相选择切换电路，其选择三相交流输入功率的内相;以及（2）耦合到所述相选择开关电路的开关网络，其控制 至少与DC / DC转换器的内相波形，从而减少与三相AC输入功率有关的谐波。

公开(公告)号：US5327333A

公开(公告)日：1994-07-05

申请号：US981638

申请日：1992-11-25

申请人： Jeffrey J. Boylan ,  Mark E. Jacobs ,  Thomas P. Loftus, Jr. ,  Allen F. Rozman

发明人： Jeffrey J. Boylan ,  Mark E. Jacobs ,  Thomas P. Loftus, Jr. ,  Allen F. Rozman

IPC分类号： H02M1/14 ,  H02M3/28 ,  H02M3/335

CPC分类号： H02M3/28 ,  H02M3/33569

摘要： A DC-DC converter utilizes a tapped transformer secondary winding as a means of achieving output voltage ripple cancellation. This ripple cancellation occurs at a specified input voltage. It operates by fixing the location of a tap on the secondary winding of the power transformer so that the output voltage ripple cancellation occurs at the specified input voltage. It also minimizes the volt seconds that must be sustained by the output filter inductor over a specified range of input voltage for the converter.

摘要翻译： DC-DC转换器利用抽头变压器次级绕组作为实现输出电压纹波消除的手段。 该纹波消除发生在指定的输入电压。 它通过将电源变压器的次级绕组上的抽头位置固定起来，以便在指定的输入电压下产生输出电压纹波消除。 它还可以最大限度地减少输出滤波电感器在转换器的特定输入电压范围内所需的伏秒数。

公开(公告)号：USD701243S1

公开(公告)日：2014-03-18

申请号：US29408515

申请日：2011-12-13

申请人： Doug R. Cornett ,  John Page Chapman ,  Gary Lynn Janowiak ,  Daniel A. Nelson ,  Mark E. Jacobs ,  Brent L. Rehm ,  Pratap S. Murthy ,  Anthony Leon Spoor ,  James Roy Sheren

设计人： Doug R. Cornett ,  John Page Chapman ,  Gary Lynn Janowiak ,  Daniel A. Nelson ,  Mark E. Jacobs ,  Brent L. Rehm ,  Pratap S. Murthy ,  Anthony Leon Spoor ,  James Roy Sheren

公开(公告)号：US06646895B1

公开(公告)日：2003-11-11

申请号：US10057326

申请日：2001-10-25

申请人： Mark E. Jacobs ,  Robert J. Murphy, Jr. ,  Ramanujam Ramabhadran ,  Thomas G. Wang ,  Shashank S. Wekhande

发明人： Mark E. Jacobs ,  Robert J. Murphy, Jr. ,  Ramanujam Ramabhadran ,  Thomas G. Wang ,  Shashank S. Wekhande

IPC分类号： H02M3335

CPC分类号： H02M3/33561 ,  H02M3/33569 ,  H02M2001/0006

摘要： A bias supply circuit and a method of operating a bias supply circuit for use with a switching power supply employing a main switch and an auxiliary switch and having an input voltage and a voltage across a clamp capacitor coupled to a transformer. In one embodiment, the bias supply circuit includes a bias supply winding associated with the transformer and configured to provide a first voltage dependent on at least one of the input voltage and the voltage across the clamp capacitor during a conduction period of the main switch or the auxiliary switch. Additionally, the bias supply circuit further includes a bias supply storage capacitor coupled to the bias supply winding and configured to provide a second voltage dependent on at least another of the input voltage and the voltage across the clamp capacitor during a conduction period of another of the main switch or the auxiliary switch. A sum of the first voltage and the second voltage provides a bias supply voltage.

摘要翻译： 一种偏置电源电路和一种用于与采用主开关和辅助开关的开关电源一起使用并具有耦合到变压器的钳位电容器两端的输入电压和电压的偏置电源电路的方法。 在一个实施例中，偏置电源电路包括与变压器相关联的偏置电源绕组，并且被配置为在主开关的导通时段期间提供取决于钳位电容器两端的输入电压和电压中的至少一个的第一电压， 辅助开关 此外，偏置电源电路还包括耦合到偏置电源绕组的偏置电源存储电容器，并且被配置为在另一个的另一个的导通周期期间提供取决于钳位电容器两端的输入电压和电压中的至少另一个的第二电压 主开关或辅助开关。 第一电压和第二电压的总和提供偏置电源电压。

公开(公告)号：US06445597B1

公开(公告)日：2002-09-03

申请号：US09894328

申请日：2001-06-28

申请人： Jeffrey J. Boylan ,  Mark E. Jacobs ,  Li Li

发明人： Jeffrey J. Boylan ,  Mark E. Jacobs ,  Li Li

IPC分类号： H02M3335

CPC分类号： H02M3/33561 ,  H02M3/33592 ,  Y02B70/1475

摘要： A local loop control system and method of operating the same for use with a power converter. The power converter includes a first output coupled to a first synchronous rectifier circuit and a second output coupled to a second synchronous rectifier circuit. The power converter employs a main controller configured to regulate a voltage proportional to a weighted sum of the first and go second outputs. In one embodiment, the local loop control system includes: (1) a first output controller configured to regulate a voltage at the first output and (2) a second output controller configured to regulate a voltage at the second output, one of the first and second output controllers configured to reduce a drive signal to a corresponding one of the first and second synchronous rectifier circuits when a corresponding voltage at one of the first and second outputs exceeds a voltage proportional to the weighted sum.

摘要翻译： 一种本地回路控制系统及其操作方法，用于与功率转换器一起使用。 功率转换器包括耦合到第一同步整流器电路的第一输出和耦合到第二同步整流器电路的第二输出。 功率转换器采用主控制器，其被配置为调节与第一和第二输出的加权和成比例的电压。 在一个实施例中，本地环路控制系统包括：（1）被配置为调节第一输出端的电压的第一输出控制器和（2）被配置为调节第二输出端的电压的第二输出控制器， 第二输出控制器被配置为当第一和第二输出中的一个输出处的对应电压超过与加权和成比例的电压时，将驱动信号减小到第一和第二同步整流器电路中的对应的一个。

公开(公告)号：US06356461B1

公开(公告)日：2002-03-12

申请号：US09589970

申请日：2000-06-08

申请人： Mark E. Jacobs

发明人： Mark E. Jacobs

IPC分类号： H02M3335

CPC分类号： H02M3/337 ,  H02M2001/0009

摘要： A system and method for estimating magnetic flux in an isolation transformer and a power converter employing the system or the method. The power converter has a full bridge switching circuit coupled across a primary winding of an isolation transformer. In one embodiment, the system includes a conductive path, including an observer, established across at least a portion of the primary winding. A voltage developed by the observer depends upon a value of the magnetic flux in at least the portion of the primary winding.

摘要翻译： 用于估计隔离变压器中的磁通量的系统和方法以及采用该系统或方法的功率转换器。 功率转换器具有耦合在隔离变压器的初级绕组上的全桥开关电路。 在一个实施例中，该系统包括跨过初级绕组的至少一部分建立的包括观察者的导电路径。 由观察者产生的电压取决于初级绕组的至少部分中的磁通量的值。

公开(公告)号：US6075716A

公开(公告)日：2000-06-13

申请号：US286856

申请日：1999-04-06

申请人： Jin He ,  Mark E. Jacobs

发明人： Jin He ,  Mark E. Jacobs

IPC分类号： H02M7/12 ,  H02M1/00 ,  H02M1/42 ,  H02M3/155 ,  H02M1/12

CPC分类号： H02M1/4216 ,  H02M2001/009 ,  Y02B70/126

摘要： For use with a three-phase split boost converter having a primary stage with a primary rectifier and first and second primary boost switches coupled between an input and first and second outputs of the three-phase split boost converter, an auxiliary stage interposed between the input and the first and second outputs, a method of reducing input current total harmonic distortion (THD) and a converter incorporating the auxiliary stage or the method. In one embodiment, the auxiliary stage includes: (1) first, second and third auxiliary boost inductors coupled to corresponding phases of the input and (2) an auxiliary boost network interposed between the first, second and third auxiliary boost inductors and the first and second outputs and including (2a) an auxiliary three phase full-wave rectifier, (2b) first and second auxiliary boost diodes, and (2c) first and second auxiliary boost switches, coupled between the auxiliary three phase full-wave rectifier and the first and second auxiliary boost diodes, that cooperate to conduct currents through the first, second and third auxiliary boost inductors to reduce input current total harmonic distortion (THD) at the input of the three-phase split boost converter.

摘要翻译： 用于具有初级级的初级整流器和耦合在三相分流式升压转换器的输入端和第一和第二输出端之间的第一和第二主级升压开关的三相分流升压转换器，插入在输入端之间的辅助级 以及第一和第二输出，减少输入电流总谐波失真（THD）的方法和结合辅助级的转换器或方法。 在一个实施例中，辅助级包括：（1）耦合到输入的相应相位的第一辅助升压电感器和第二辅助升压电感器，和（2）插入在第一辅助升压电感器和第二辅助升压电感器之间的辅助升压网络，以及 第二输出，包括（2a）辅助三相全波整流器，（2b）第一和第二辅助升压二极管，和（2c）第一和第二辅助升压开关，耦合在辅助三相全波整流器和第一 和第二辅助升压二极管，它们配合以通过第一，第二和第三辅助升压电感器传导电流，以减小三相分压升压转换器输入端的输入电流总谐波失真（THD）。

公开(公告)号：US6046915A

公开(公告)日：2000-04-04

申请号：US118569

申请日：1998-07-17

申请人： Mark E. Jacobs ,  Yimin Jiang ,  Hengchun Mao

发明人： Mark E. Jacobs ,  Yimin Jiang ,  Hengchun Mao

IPC分类号： H02M1/00 ,  H02M1/42 ,  H02M3/158 ,  H02M1/12 ,  G05F1/00

CPC分类号： H02M3/158 ,  H02M1/4216 ,  Y02B70/126

摘要： An active circuit for delivering three phase AC input power received from a three phase rectifier to a boost converter and a method of operating the same. In one embodiment, the active circuit includes a phase selection switching circuit, coupled to the rectifier, that selects an inner phase of the three phase AC input power. The active circuit also includes a switching network, coupled to the phase selection switching circuit and the rectifier, that controls a current waveshape of the inner phase and a current waveshape of at least one other phase, thereby to reduce harmonics associated with three phase AC input current.

摘要翻译： 用于将从三相整流器接收的三相交流输入电力输送到升压转换器的有源电路及其操作方法。 在一个实施例中，有源电路包括耦合到整流器的相选择开关电路，其选择三相AC输入功率的内相。 有源电路还包括耦合到相选择开关电路和整流器的开关网络，其控制内相的电流波形和至少一个其它相的电流波形，从而减少与三相AC输入相关联的谐波 当前。

公开(公告)号：US6043997A

公开(公告)日：2000-03-28

申请号：US133105

申请日：1998-08-12

申请人： Jin He ,  Mark E. Jacobs

发明人： Jin He ,  Mark E. Jacobs

IPC分类号： H02M1/14

CPC分类号： H02M1/4216 ,  H02M1/4225 ,  Y02B70/126

摘要： For use with a three-phase boost converter having a primary stage with a primary rectifier and a primary boost switch coupled between an input and output of the three-phase boost converter, an auxiliary stage, method of reducing input current total harmonic distortion (THD) at the input of the three-phase boost converter, and a three-phase boost converter employing the auxiliary stage and method. In one embodiment, the auxiliary stage includes first, second and third auxiliary boost inductors coupled to corresponding phases of the input. The auxiliary stage also includes an auxiliary boost switch, interposed between the first, second and third auxiliary boost inductors and the output, that conducts to draw corresponding phase currents through the first, second and third auxiliary boost inductors thereby reducing input current THD at the input of the three-phase boost converter.

摘要翻译： 用于具有初级整流器和耦合在三相升压转换器的输入和输出之间的初级升压开关的三相升压转换器，辅助级，减少输入电流总谐波失真（THD）的方法 ）在三相升压转换器的输入端，以及采用辅助级和方法的三相升压转换器。 在一个实施例中，辅助级包括耦合到输入的相应相位的第一，第二和第三辅助升压电感器。 辅助级还包括插入在第一辅助升压电感器和第三辅助升压电感器之间的辅助升压开关和输出端，该辅助升压开关导通通过第一，第二和第三辅助升压电感器引出相应的相电流，从而减小输入端的输入电流THD 的三相升压转换器。