公开(公告)号：US06388896B1

公开(公告)日：2002-05-14

申请号：US09816423

申请日：2001-03-22

申请人： Slobodan Cuk

发明人： Slobodan Cuk

IPC分类号： H02M3335

CPC分类号： H02M3/1582 ,  H02M3/005 ,  H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1475 ,  Y02B70/1491

摘要： A new switching converter operates at record high efficiency despite its small size and light weight and enables ultra high overload current capability owing to two novel methods: new Lossless Switching method eliminates switching losses by use of a precise sequence and timing of the four controllable switches, while novel DC Transformer structure provides a method to eliminate the stored DC energy in magnetics, which further increases efficiency and reduces the magnetics and converter size.

摘要翻译： 新的开关转换器尽管尺寸小巧，重量轻，但运行速度创新高，由于采用了两种新颖的方法，可实现超高的过载电流功能：新的无损切换方法通过使用四个可控开关的精确序列和定时来消除开关损耗， 而新型直流变压器结构提供了一种消除磁性中存储的直流能量的方法，这进一步提高了效率并降低了磁性和转换器尺寸。

公开(公告)号：US06347045B1

公开(公告)日：2002-02-12

申请号：US09625091

申请日：2000-07-25

申请人： Ngai Kit Poon ,  Joe Chui Pong Liu ,  Man Hay Pong

发明人： Ngai Kit Poon ,  Joe Chui Pong Liu ,  Man Hay Pong

IPC分类号： H02M112

CPC分类号： H02M3/005 ,  H02M1/126 ,  H02M3/155

摘要： A noise canceling apparatus is provided that uses magnetically-coupled windings to cancel noise currents or noise voltages from a power converter. The apparatus may include a series voltage source or a shunt current source that is placed at input or output terminals of a power converter to eliminate the noise generated from the power converter.

摘要翻译： 提供一种噪声消除装置，其使用磁耦合绕组来消除来自功率转换器的噪声电流或噪声电压。 该装置可以包括串联电压源或分流电流源，其被放置在功率转换器的输入或输出端子处，以消除从功率转换器产生的噪声。

公开(公告)号：US06304065B1

公开(公告)日：2001-10-16

申请号：US09798419

申请日：2001-03-02

申请人： Ernest H. Wittenbreder

发明人： Ernest H. Wittenbreder

IPC分类号： G05F124

CPC分类号： H02M3/005 ,  H02M3/158

摘要： Three terminal PWM DC to DC converter networks which accomplish both non-pulsating input and non-pulsating output currents using a single simple coupled inductor is revealed. The DC to DC converter networks accomplish buck, boost, buck boost (flyback), buck complement, boost complement, or flyback complement (SEPIC) conversion using a simple circuit requiring only two switches, one of which may be a simple diode rectifier, one or two capacitors, and three or four inductors, which may be co-located on a single common magnetic core. Also revealed are techniques to accomplish isolation, high order (quadrature) transfer functions, methodology for reducing current ripple to near zero levels at all terminals simultaneously, and methodology for generalizing the process of changing three terminal networks with pulsating terminal currents into three terminal networks with non-pulsating terminal currents.

摘要翻译： 揭示了使用单个简单耦合电感实现非脉动输入和非脉动输出电流的三端PWM直流到直流转换器网络。 DC到DC转换器网络使用仅需要两个开关的简单电路来实现降压，升压，降压升压（反激），降压补偿，升压补充或反激补偿（SEPIC）转换，其中一个可以是简单的二极管整流器，一个 或两个电容器，以及三个或四个电感器，其可以共同位于单个公共磁芯上。 还揭示了实现隔离，高阶（正交）传递函数，同时在所有终端将电流纹波降低到接近零电平的方法的技术，以及将具有脉动端子电流的三个终端网络改变为三个终端网络的过程的方法， 非脉动端子电流。

公开(公告)号：US4961128A

公开(公告)日：1990-10-02

申请号：US291174

申请日：1988-12-28

申请人： Gordon E. Bloom

发明人： Gordon E. Bloom

IPC分类号： H02M3/00 ,  H02M3/10

CPC分类号： H02M3/005 ,  H02M3/10 ,  H02M2001/009

摘要： A unique multi-output isolated buck DC-DC converter system is disclosed. The converter system has non-pulsating input and output current waveforms. The converter can be adapted to two- or three-bobbin integrated-magnetic embodiments, or in discrete-magnetic form. One embodiment of the converter comprises capacitor means joined at one end to a first common core inductor and joined at its opposite end to a second common core inductor; and switch means having a duty cycle, for alternately joining an output lead to one end of the capacitor means and to the opposite end of the capacitor means, such that a voltage proportional to "VD" is produced at the output lead when a DC voltage "V" is applied across opposite ends of the first and the second common core inductor.

摘要翻译： 公开了一种独特的多输出隔离降压DC-DC转换器系统。 转换器系统具有非脉动输入和输出电流波形。 该转换器可以适用于二或三绕线器集成磁性实施例，或以离散磁性形式。 转换器的一个实施例包括在一端连接到第一公共芯电感器并且在其相对端处连接到第二公共芯电感器的电容器装置; 以及具有占空比的开关装置，用于交替地将输出引线连接到电容器装置的一端和电容器装置的相对端，使得当输出引线上产生与“VD”成比例的电压时， “V”被施加在第一和第二公共芯电感器的相对端。

公开(公告)号：US4355352A

公开(公告)日：1982-10-19

申请号：US153250

申请日：1980-05-27

申请人： Gordon E. Bloom ,  Altan Eris

发明人： Gordon E. Bloom ,  Altan Eris

IPC分类号： H02M3/00 ,  H02M3/335

CPC分类号： H02M3/005

摘要： A DC to DC converter is shown using three coupled inductor windings, two capacitors and two switching devices to provide a ripple free input and output current.

摘要翻译： 使用三个耦合电感器绕组，两个电容器和两个开关器件来示出DC到DC转换器，以提供无纹波的输入和输出电流。

公开(公告)号：US4186437A

公开(公告)日：1980-01-29

申请号：US902725

申请日：1978-05-03

申请人： Slobodan M. Cuk

发明人： Slobodan M. Cuk

IPC分类号： H03K17/66 ,  H02M3/00 ,  H02M3/04 ,  H02M3/07 ,  H02M3/155 ,  H03F3/217 ,  H03K17/60 ,  H02M3/335

CPC分类号： H02M3/04 ,  H02M3/005 ,  H03F3/217 ,  H03K17/60

摘要： A true push-pull switching power amplifier is disclosed utilizing two dc-to-dc converters. Each converter is comprised of two inductances, one inductance in series with a DC source and the other inductor in series with the output load, and an electrical energy transferring device with storage capability, namely storage capacitance, with suitable switching means between the inductances to obtain DC level conversion, where the switching means allows bidirectional current (and power) flow, and the switching means of one dc-to-dc converter is driven by the complement of a square-wave switching signal for the other dc-to-dc converter for true push-pull operation. For reduction of current ripple, the inductances in each of the two converters may be coupled, and with proper design of the coupling, the ripple can be reduced to zero at either the input or the output, but preferably the output.

摘要翻译： 公开了一种真正的推挽式开关功率放大器，利用两个dc-dc转换器。 每个转换器由两个电感组成，一个电感与直流电源串联，另一个电感器与输出负载串联;以及具有存储能力的电能传输装置，即存储电容，在电感之间具有合适的开关装置，以获得 DC电平转换，其中开关装置允许双向电流（和功率）流动，并且一个dc-dc转换器的开关装置由另一个DC-DC转换器的方波切换信号的补码驱动 用于真正的推挽操作。 为了减小电流纹波，可以将两个转换器中的每一个中的电感耦合，并且通过耦合的适当设计，纹波可以在输入端或输出端都可以减小到零，但最好是输出。

公开(公告)号：US09935547B2

公开(公告)日：2018-04-03

申请号：US15098038

申请日：2016-04-13

申请人： Infineon Technologies Austria AG

发明人： Kennith Kin Leong

IPC分类号： H02M3/158 ,  H02M3/156 ,  H02M3/00 ,  H02M1/00 ,  H02M3/155

CPC分类号： H02M3/158 ,  H02M3/005 ,  H02M3/156 ,  H02M2001/0058 ,  H02M2003/1557 ,  Y02B70/1425 ,  Y02B70/1491

摘要： In accordance with an embodiment, a method of operating a switched-mode power includes turning on an output switch of the switched-mode power converter coupled to a supply output port of the switched-mode power converter, where an output switch current flows to the supply output port through the output switch in a first direction after turning on the output switch. The method further includes turning off the output switch a first period of time after the output switch current changes polarity from the first direction to a second direction opposite the first direction.

公开(公告)号：US09871450B2

公开(公告)日：2018-01-16

申请号：US15494063

申请日：2017-04-21

申请人： VANNER, INC.

发明人： Alexander Isurin ,  Alexander Cook

IPC分类号： H02M3/335 ,  H02M3/158 ,  H02M7/537 ,  H02M1/08 ,  H02M1/00

CPC分类号： H02M3/335 ,  H02M1/083 ,  H02M3/005 ,  H02M3/158 ,  H02M3/337 ,  H02M7/48 ,  H02M7/537 ,  H02M2001/0048 ,  H02M2001/0077 ,  H02M2003/1557

摘要： An isolated step-up converter having first and second stages is described herein. The second stage can provide either DC or AC output based on the various topologies described. Resonance inductors and capacitors are used and tuned to a commutation frequency in some embodiments. Capacitors and inductors are also used in the first stage.

公开(公告)号：US20170302176A1

公开(公告)日：2017-10-19

申请号：US15098038

申请日：2016-04-13

申请人： Infineon Technologies Austria AG

发明人： Kennith Kin Leong

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  H02M3/005 ,  H02M3/156 ,  H02M2001/0058 ,  H02M2003/1557 ,  Y02B70/1425 ,  Y02B70/1491

摘要： In accordance with an embodiment, a method of operating a switched-mode power includes turning on an output switch of the switched-mode power converter coupled to a supply output port of the switched-mode power converter, where an output switch current flows to the supply output port through the output switch in a first direction after turning on the output switch. The method further includes turning off the output switch a first period of time after the output switch current changes polarity from the first direction to a second direction opposite the first direction.

公开(公告)号：US20170222566A1

公开(公告)日：2017-08-03

申请号：US15415360

申请日：2017-01-25

申请人： Richtek Technology Corporation

发明人： Chang-Yu WU ,  Tzu-Chen LIN

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M1/15 ,  H02M3/005 ,  H02M3/1582 ,  H02M3/3353 ,  H02M7/04 ,  H02M2001/007

摘要： An AC-to-DC power converter includes a rectifier for generating a rectified voltage based on an AC voltage; an input capacitor coupled between the rectifier and a fixed-voltage terminal; a first inductive element; a first auxiliary capacitor; a first switch coupled between the input capacitor and the first inductive element; a second switch coupled between the first inductive element and the fixed-voltage terminal; a circuitry node; an auxiliary switch for coupling between the circuitry node and the first auxiliary capacitor or between the first auxiliary capacitor and the fixed-voltage terminal; a first diode; a second diode; a control signal generating circuit for controlling the first switch and the second switch; and an auxiliary switch control circuit for controlling the auxiliary switch.