公开(公告)号：US5717584A

公开(公告)日：1998-02-10

申请号：US569856

申请日：1995-12-08

申请人： Kaushik Rajashekara ,  Venkatachari Rajagopalan

发明人： Kaushik Rajashekara ,  Venkatachari Rajagopalan

IPC分类号： H02M7/5387 ,  H02M3/24

CPC分类号： H02M7/5387 ,  H02M2007/4811 ,  Y02B70/1441

摘要： A quasi-resonant pole inverter provides soft-switching of the main inverter switch devices only when such opportunities are required by the pulse width modulation control. The inverter includes a main switching section and an auxiliary switching section. A phase-pole of the main switching section swings from source to ground potential with the assistance of the auxiliary switching section. The phase-pole swings from ground to source potential with the assistance of the auxiliary switching section. Low switch stresses are characteristic in both the main switching section devices and the auxiliary section switching devices. Main power is carried predominantly through the DC rails thereby minimizing power handling requirements of quasi-resonant reactive components.

摘要翻译： 只有当脉宽调制控制需要这样的机会时，准谐振极反相器才能提供主逆变器开关器件的软开关。 逆变器包括主开关部分和辅助切换部分。 主开关部分的相极在辅助切换部分的辅助下从源极到地电位摆动。 在辅助切换部分的辅助下，相极从地电位摆动。 低开关应力在主开关部分装置和辅助部分开关装置中是特征的。 主电源主要通过直流导轨进行，从而最小化准谐振电抗元件的功率处理要求。

公开(公告)号：US5572418A

公开(公告)日：1996-11-05

申请号：US294398

申请日：1994-08-23

申请人： Gunji Kimura ,  Toshihisa Shimizu ,  Akio Toba ,  Shigeru Sano

发明人： Gunji Kimura ,  Toshihisa Shimizu ,  Akio Toba ,  Shigeru Sano

IPC分类号： H02M7/48 ,  H02M7/487 ,  H02M3/24

CPC分类号： H02M7/487 ,  H02M7/4826 ,  H02M2007/4811

摘要： A quasi-resonant PWM inverter performs stable resonant operation utilizing a simple control system and a highly efficient inverter operation. A first condenser is connected between a connecting point between first and second main switches and to the first side of the first main switch. A second condenser is connected between the connecting point and the second side of the second main switch. The respective first and second sides of the first main switch and second main switch are connected to a DC power source having a first dividing point for the first potential and a second dividing point for the second potential. A terminal of a first auxiliary switch is connected to the first dividing point; and a terminal of a second auxiliary switch is connected to the second dividing point. A reactor is connected between the connecting points of the first and second auxiliary switches and the first and second main switches.

摘要翻译： 准谐振PWM逆变器利用简单的控制系统和高效率的逆变器操作来执行稳定的谐振操作。 第一冷凝器连接在第一和第二主开关之间的连接点和第一主开关的第一侧之间。 第二冷凝器连接在第二主开关的连接点和第二侧之间。 第一主开关和第二主开关的相应的第一和第二侧连接到具有用于第一电位的第一分割点和用于第二电位的第二分割点的DC电源。 第一辅助开关的端子连接到第一分割点; 并且第二辅助开关的端子连接到第二分割点。 反应器连接在第一和第二辅助开关的连接点与第一和第二主开关之间。

公开(公告)号：US5172309A

公开(公告)日：1992-12-15

申请号：US741873

申请日：1991-08-07

申请人： Rik W. A. A. DeDoncker ,  James P. Lyons

发明人： Rik W. A. A. DeDoncker ,  James P. Lyons

IPC分类号： H02M7/48

CPC分类号： H02M7/4826 ,  H02M2007/4811

摘要： An auxiliary quasi-resonant dc link (AQRDCL) converter is employed to achieve soft-switching in an inverter coupled to a dc supply via a resonant dc link circuit. The resonant dc link circuit generates a quasi-resonant voltage to the inverter via a resonant bus. The dc link circuit includes upper and lower capacitors coupled to series between the positive and negative rails of the dc supply, respectively, with the voltage across the lower capacitor being controlled to be greater than the voltage across the upper capacitor. In this way, the need for a switch shorting the resonant bus to ground during a resonant cycle is avoided. An auxiliary switching device assists resonant operation of the resonant bus to zero voltage in order to provide a zero-voltage switching opportunity for the inverter switching devices as the inverter changes state. The AQRDCL then quickly resonates back up to the positive rail voltage as a clamping circuit clamps the resonant bus voltage thereto either with or without the assistance of a second auxiliary switching device, as desired. The auxiliary switching device(es) operates under zero-current switching conditions and at a rate that is below the resonant frequency of the resonant dc link circuit. In addition to high efficiency, the AQRDCL converter has low current and voltage stresses and uses a minimal number of circuit components. The AQRDCL may be used to achieve soft-switching in a variety of inverter topologies, including a switched reluctance machine inverter.

公开(公告)号：US4330817A

公开(公告)日：1982-05-18

申请号：US82062

申请日：1979-10-05

申请人： Zoltan Avar ,  Lajos Salavetz

发明人： Zoltan Avar ,  Lajos Salavetz

IPC分类号： H02M7/757 ,  H02M1/08 ,  H02M5/45 ,  H02M7/527 ,  H02P27/06 ,  H02P13/18

CPC分类号： H02P27/06 ,  H02M5/45 ,  H02M7/527 ,  H02M2007/4811 ,  H02P27/047

摘要： In order to energize a load with an output current generally conforming to a control voltage, trains of firing pulses are alternately applied during respective conduction intervals of a recurrence period to a pair of main thyristors connected to opposite terminals of a balanced power supply which may be a DC source. The main thyristors are quenched, at the ends of their respective conduction intervals, by ancillary thyristors which lie in series with a resonant circuit including a commutating capacitor and alternately receive firing pulses in continuous succession in order to keep that capacitor operatively connected at all times to one or the other terminal of the power supply. The transmission of firing pulses to the several thyristors is timed by a logic circuit under the control of a comparator to which the control voltage is fed together with a sawtooth voltage establishing the aforementioned recurrence period.

摘要翻译： 为了通过大体上符合控制电压的输出电流激励负载，在连续到平衡电源的相对端子的一对主晶闸管中，在复发周期的各个传导间隔期间交替施加点火脉冲， 一个直流电源。 主晶闸管在它们各自的传导间隔的末端被辅助晶闸管猝灭，该辅助晶闸管与包括换向电容器的谐振电路串联，并且连续地接续地接收点火脉冲，以便使电容器始终可操作地连接到 一个或另一个终端的电源。 点火脉冲向几个晶闸管的传输由控制电压与建立上述复现周期的锯齿波电压一起供给的比较器控制的逻辑电路定时。

公开(公告)号：US3935528A

公开(公告)日：1976-01-27

申请号：US451585

申请日：1974-03-15

申请人： Jorg Brenneisen ,  Arnold Schonung

发明人： Jorg Brenneisen ,  Arnold Schonung

IPC分类号： H02M7/523 ,  H02M7/525 ,  H02M7/44

CPC分类号： H02M7/5236 ,  H02M7/525 ,  H02M2007/4811

摘要： A self-commutating inverter having at least two main thyristors connected to a d-c source, a commutating arrangement consisting of an energy storage device and auxiliary thyristors connected anti-parallel to each other, a load and a firing control arrangement with outputs which are associated with the main and the auxiliary thyristors and can be impressed with firing pulses at presettable times, wherein the auxiliary thyristor associated as the commutation valve with the main thyristor to be relieved is triggered prior to the firing of the relieving main thyristor by a presettable time interval, and means to monitor the system.

摘要翻译： 具有连接到直流源的至少两个主晶闸管的自换向逆变器，由能量存储装置和彼此反并联连接的辅助晶闸管组成的换向装置，负载和点火控制装置，其输出与 主要和辅助晶闸管，并且在预设的时间可以施加触发脉冲，其中与释放主晶闸管的换向阀相关联的辅助晶闸管在释放主晶闸管之前以预设的时间间隔被触发， 并监控系统的方法。

公开(公告)号：US20190173388A1

公开(公告)日：2019-06-06

申请号：US15832283

申请日：2017-12-05

申请人： ABB Schweiz AG

发明人： Harish Suryanarayana

IPC分类号： H02M3/335 ,  H02M7/48

CPC分类号： H02M3/33592 ,  H02M3/33546 ,  H02M3/33569 ,  H02M7/48 ,  H02M2001/0048 ,  H02M2001/0058 ,  H02M2007/4811 ,  H02M2007/4815

摘要： Unique systems, methods, techniques and apparatuses of a power converter are disclosed. One exemplary embodiment is a resonant power converter comprising a DC bus, a primary leg, an auxiliary leg, and an LC resonant circuit. The auxiliary leg is coupled between DC bus and includes a first auxiliary switch and a second auxiliary switch coupled at an auxiliary midpoint connection. The LC resonant circuit includes an air-core resonant inductor and a resonant capacitor coupled between the auxiliary midpoint connection and a primary midpoint connection of the primary leg. A controller is structured to control the first and second auxiliary switch and the first and second primary switch so as to provide resonant operation of the LC resonant circuit effective to provide a substantially zero voltage condition across the first and second primary switch while toggling the switches.

公开(公告)号：US09876430B2

公开(公告)日：2018-01-23

申请号：US15488858

申请日：2017-04-17

申请人： Solaredge Technologies Ltd.

发明人： Tzachi Glovinsky

IPC分类号： H02M3/158 ,  H02M1/34 ,  H02M7/5387 ,  H02M7/48

CPC分类号： H02M3/158 ,  H02M1/34 ,  H02M7/5387 ,  H02M2007/4811 ,  Y02B70/1441

摘要： A method for providing non-resonant zero-voltage switching in a switching power converter. The switching power converter converts power from input power to output power during multiple periodic switching cycles. The switching power converter includes a main switch and an auxiliary capacitor adapted for connecting to the main switch, and an inductor connectible to the auxiliary capacitor. When the main switch is on, a previously charged (or previously discharged) auxiliary capacitor is connected to the main switch with auxiliary switches. The main switch is switched off with zero voltage while discharging non-resonantly (charging) the auxiliary capacitor by providing a current path to the inductor. The auxiliary capacitor is disconnected from the main switch. The voltage of the auxiliary capacitor is charged and discharged alternatively during subsequent switching cycles. The voltage of the auxiliary capacitor stays substantially the same until the subsequent turn off of the main switch during the next switching cycle with substantially no energy loss in the auxiliary capacitor.

公开(公告)号：US09831787B1

公开(公告)日：2017-11-28

申请号：US15167364

申请日：2016-05-27

申请人： NXP B.V.

发明人： Hans Halberstadt ,  Ferdinand Jacob Sluijs

IPC分类号： H02M3/335 ,  H02M7/48

CPC分类号： H02M3/33569 ,  H02M3/3353 ,  H02M3/33546 ,  H02M2007/4811 ,  H02M2007/4815 ,  H02M2007/4818 ,  Y02B70/1433

摘要： Disclosed is a power converter including a generator configured to generate a sequence of output voltage waveforms, a resonant tank connected to the generator comprising at least one capacitor and at least one inductor, a transformer including a primary side connected in series with said series inductor and, the primary side being configurable to use at least one primary winding tap and a secondary side for connecting to a rectifying circuit for providing a rectified DC voltage to an output load circuit, a first switch and a second switch on the primary side connected to the primary winding, wherein the at least one primary winding is selected by the first switch or the second switch to select a different reflected output voltage by closing the first switch or the second switch.

公开(公告)号：US09595873B2

公开(公告)日：2017-03-14

申请号：US14728890

申请日：2015-06-02

申请人： Utah State University ,  Raytheon Company ,  Regents of the University of Colorado

发明人： Regan A Zane ,  Daniel Seltzer ,  Dragan Maksimovic ,  Boris Jacobson ,  Donald Desrosiers

IPC分类号： H02M3/158 ,  H02M3/335 ,  H02M1/42 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02M1/4241 ,  H02M3/1584 ,  H02M3/285 ,  H02M3/33569 ,  H02M3/33584 ,  H02M3/33592 ,  H02M7/5387 ,  H02M2001/0003 ,  H02M2007/4811 ,  H02M2007/4815 ,  H02M2007/4822 ,  Y02B70/1433

摘要： An apparatus for zero voltage switching is disclosed. A system and method also perform the functions of the apparatus. The apparatus includes an MCT region module that defines a minimum current trajectory (“MCT”) for operation between a maximum positive power output to a maximum negative power output of a bidirectional DC-to-DC converter. The converter includes a dual active bridge series resonant converter. The MCT defines a boundary between a zero voltage switching (“ZVS”) region and a hard switching region. The apparatus includes an offset module that defines an offset to the MCT, the offset in the ZVS region, and an MCT control module that adjust switching of switches of the converter to maintain operation of the converter in the ZVS region between the maximum positive power output to a maximum negative power output along a trajectory defined by the MCT and the offset.

摘要翻译： 公开了一种用于零电压开关的装置。 系统和方法还执行该装置的功能。 该装置包括MCT区域模块，其限定用于在双向DC-DC转换器的最大正功率输出与最大负功率输出之间操作的最小电流轨迹（“MCT”）。 该转换器包括双主动桥式串联谐振变换器。 MCT定义零电压开关（“ZVS”）区域和硬开关区域之间的边界。 该装置包括限定到MCT的偏移量，ZVS区域中的偏移量的偏移模块和调节转换器开关的开关的MCT控制模块，以保持ZVS区域中的转换器在最大正功率输出 到由MCT和偏移量定义的轨迹的最大负功率输出。

公开(公告)号：US09537394B2

公开(公告)日：2017-01-03

申请号：US14413113

申请日：2013-07-03

申请人： COMSYS AB

发明人： Dan Liljegren ,  Oscar Haraldsson

IPC分类号： H02M3/158 ,  H02M3/325 ,  H02M7/36 ,  H02M7/75 ,  H02M7/48 ,  H02M1/14

CPC分类号： H02M3/158 ,  H02M1/14 ,  H02M3/325 ,  H02M7/36 ,  H02M7/48 ,  H02M7/75 ,  H02M2007/4811 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A resonant power converter comprising electrical safety components comprising a combination of a diodes and a zener diodes coupled between DC conductors and an auxiliary switching circuit, the diodes being adapted to hinder the current from flowing from the auxiliary switching circuit to the negative DC conductor, and the zener diodes being adapted to allow current to flow from the negative DC conductor to the auxiliary switching circuit when the potential difference between the negative DC conductor and the phase conductor is above a threshold voltage. The Zener diodes being selected such that the threshold voltage of the Zener diodes is below the maximum blocking voltage of the transistors.

摘要翻译： 一种谐振功率转换器，包括电气安全部件，其包括耦合在DC导体和辅助开关电路之间的二极管和齐纳二极管的组合，所述二极管适于阻止电流从辅助开关电路流向负DC导体;以及 当负DC导体和相导体之间的电位差高于阈值电压时，齐纳二极管适于允许电流从负DC导体流到辅助开关电路。 选择齐纳二极管使得齐纳二极管的阈值电压低于晶体管的最大阻断电压。