公开(公告)号：US08716986B2

公开(公告)日：2014-05-06

申请号：US13010365

申请日：2011-01-20

申请人： Mitsuharu Tabata

发明人： Mitsuharu Tabata

IPC分类号： G05F1/10

CPC分类号： H02M7/538 ,  H02M2001/348

摘要： A power conversion circuit which receives a high potential, a low potential, and a neutral potential intermediate between the high and low potentials includes an AC switch connected so as to receive the neutral potential and a switching device receiving the high potential. The AC switch includes a diode and an inductance is connected to the diode and the switching device.

摘要翻译： 在高电位和低电位之间接收高电位，低电位和中性电位的电力转换电路包括连接以接收中性电位的AC开关和接收高电位的开关装置。 交流开关包括二极管，电感连接到二极管和开关装置。

公开(公告)号：US20140111959A1

公开(公告)日：2014-04-24

申请号：US13839032

申请日：2013-03-15

申请人： DELTA ELECTRONICS, INC.

发明人： Yan Li ,  Hongjian Gan ,  Senlin Wen ,  Jianping Ying

IPC分类号： H05K7/02

CPC分类号： H05K7/026 ,  H02M7/003 ,  H02M7/487 ,  H02M2001/348

摘要： The present application discloses a laminated busbar arrangement for use in a three-level power converter and a power converter. The laminated busbar arrangement comprises a first layer of busbar comprising a neutral-point sub busbar congfigured to make electrical connections between respective components in the three-level power converter and a neutral-point potential; a second layer of busbar comprising a plurality of sub busbars congfigured to make electrical connections between the respective components in the three-level power converter and a positive direct current (DC) input, a negative DC input and an alternating current (AC) input/output in the three-level power converter, and between respective semiconductor switching components. The present application may effectively reduce stray inductance.

摘要翻译： 本申请公开了一种用于三电平功率转换器和功率转换器的层叠母线装置。 叠层母线装置包括第一层母线，其包括中和点副汇流排，该中间点副母线配置成在三电平功率转换器中的各个组件之间进行电连接和中性点电位; 第二层母线包括多个子母线，其被配置为在三电平功率转换器中的各个部件之间进行电连接，以及正直流（DC）输入，负DC输入和交流（AC）输入/ 输出在三电平电力转换器中，以及各个半导体开关元件之间。 本申请可以有效地减少杂散电感。

公开(公告)号：US08664922B2

公开(公告)日：2014-03-04

申请号：US13552571

申请日：2012-07-18

申请人： B. Mark Hirst

发明人： B. Mark Hirst

IPC分类号： G05F1/70

CPC分类号： H02M1/34 ,  H02M5/293 ,  H02M2001/348

摘要： A snubber circuit comprises a first energy storage device and circuitry coupled to the first energy storage device to facilitate capturing, by the first energy storage device, energy of a switching circuit. The snubber circuit also comprises a second energy storage device coupled to the first energy storage device to store the captured energy. The circuitry additionally facilitates resetting of the first energy storage device.

摘要翻译： 缓冲电路包括第一能量存储设备和耦合到第一能量存储设备的电路，以便于由第一能量存储设备捕获开关电路的能量。 缓冲电路还包括耦合到第一能量存储装置以存储所捕获的能量的第二能量存储装置。 该电路还促进了第一能量存储装置的复位。

公开(公告)号：US20140003093A1

公开(公告)日：2014-01-02

申请号：US13620478

申请日：2012-09-14

申请人： Doo Young SONG ,  Sung Jun PARK ,  Min Ho HEO ,  Tae Hoon KIM ,  Tae Won LEE

发明人： Doo Young SONG ,  Sung Jun PARK ,  Min Ho HEO ,  Tae Hoon KIM ,  Tae Won LEE

IPC分类号： H02M7/42 ,  G05F1/46

CPC分类号： H02M7/483 ,  H02M2001/007 ,  H02M2001/348 ,  Y02E10/56

摘要： There are provided a multi-level converter capable of outputting power having various voltage levels with respect to a single input power supply by using a simple circuit, an inverter having the same, and a solar power supply apparatus having the same. The multi-level converter includes a first buck-boost unit having a first power switch switching an input power supply and outputting a first power having a voltage level varied according to switching of the first power switch; a bypass unit outputting a second power having a voltage level of the input power supply; and a second buck-boost unit having a second power switch switching the input power supply and outputting a third power having a voltage level varied according to switching of the second power switch.

摘要翻译： 提供一种多电平转换器，其能够通过使用简单的电路输出具有相对于单个输入电源的各种电压电平的电力，具有该电力的逆变器和具有该电力的太阳能供电装置。 多电平转换器包括第一降压 - 升压单元，其具有切换输入电源的第一电源开关并输出具有根据第一电力开关的切换而变化的电压电平的第一功率; 输出具有所述输入电源的电压电平的第二电力的旁路单元; 以及第二降压 - 升压单元，其具有切换所述输入电源并输出具有根据所述第二电力开关的切换而变化的电压电平的第三功率的第二电源开关。

公开(公告)号：US20130188404A1

公开(公告)日：2013-07-25

申请号：US13816098

申请日：2011-08-02

申请人： Kazuhito Nakamura

发明人： Kazuhito Nakamura

IPC分类号： H02M5/458

CPC分类号： H02M5/458 ,  H02M5/225 ,  H02M5/297 ,  H02M5/4585 ,  H02M2001/348

摘要： An indirect matrix converter includes a converter (2) connected through a positive polarity bus (4p) and a negative polarity bus (4n) to an inverter (6). A clamp diode (28u) has its anode connected to the positive polarity bus (4p) and has its cathode connected to one end of a capacitor (30). The other end of the capacitor (30) is connected to the anode of a clamp diode (28d) of which cathode is connected to the negative polarity bus (4n). Upper discharge preventing snubber circuits (20u) are provided for switch devices (16uu through 16uw) of the inverter (6), and lower discharge preventing snubber circuits (20d) are provided for switch devices (16du through 16dw) of the inverter (6). Discharge resistors (26u) of the upper discharge preventing snubber circuits (20u) are connected to the anode of the diode (28d), and discharge resistors (26d) of the lower discharge preventing snubber circuits (20d) are connected to the cathode of the diode (28u).

摘要翻译： 间接矩阵转换器包括通过正极母线（4p）和负极母线（4n）连接到逆变器（6）的转换器（2）。 钳位二极管（28u）的阳极连接到正极母线（4p），并且其阴极连接到电容器（30）的一端。 电容器（30）的另一端连接到阴极连接到负极母线（4n）的钳位二极管（28d）的阳极。 为逆变器（6）的开关装置（16uu〜16uw）设置有上部放电防止缓冲电路（20u），为逆变器（6）的开关装置（16du〜16dw）设置有低放电防止缓冲电路（20d） 。 上部放电防止缓冲电路（20u）的放电电阻（26u）连接到二极管（28d）的阳极，下部放电抑制缓冲电路（20d）的放电电阻（26d）连接到二极管 二极管（28u）。

公开(公告)号：US20130182471A1

公开(公告)日：2013-07-18

申请号：US13811958

申请日：2011-05-13

申请人： Albrecht Schwarz ,  Heiner Jacobs

发明人： Albrecht Schwarz ,  Heiner Jacobs

IPC分类号： H02H9/04 ,  H02M1/32

CPC分类号： H02H9/04 ,  H02M1/32 ,  H02M1/34 ,  H02M3/1584 ,  H02M7/797 ,  H02M2001/346 ,  H02M2001/348 ,  Y02B70/1491

摘要： An overvoltage protection circuit is provided for at least one branch of a half-bridge which includes a controllable semiconductor switch element and a free-wheeling diode connected in series and situated on a common circuit substrate. The protection circuit includes a commutation branch connected in parallel with the half-bridge branch, the commutation branch including at least one commutation capacitor also situated on the circuit substrate.

摘要翻译： 为半桥的至少一个分支提供过电压保护电路，该半桥包括可控半导体开关元件和串联连接并位于公共电路基板上的续流二极管。 保护电路包括与半桥支路并联连接的换向支路，该换流支路还包括位于电路基板上的至少一个换向电容器。

公开(公告)号：US20120280674A1

公开(公告)日：2012-11-08

申请号：US13552571

申请日：2012-07-18

申请人： B. Mark Hirst

发明人： B. Mark Hirst

IPC分类号： G05F3/04

CPC分类号： H02M1/34 ,  H02M5/293 ,  H02M2001/348

摘要： A snubber circuit comprises a first energy storage device and circuitry coupled to the first energy storage device to facilitate capturing, by the first energy storage device, energy of a switching circuit. The snubber circuit also comprises a second energy storage device coupled to the first energy storage device to store the captured energy. The circuitry additionally facilitates resetting of the first energy storage device.

摘要翻译： 缓冲电路包括第一能量存储装置和耦合到第一能量存储装置的电路，以便于由第一能量存储装置捕获开关电路的能量。 缓冲电路还包括耦合到第一能量存储装置以存储所捕获的能量的第二能量存储装置。 该电路还促进了第一能量存储装置的复位。

公开(公告)号：US20110273159A1

公开(公告)日：2011-11-10

申请号：US13010365

申请日：2011-01-20

申请人： Mitsuharu TABATA

发明人： Mitsuharu TABATA

IPC分类号： G05F3/04

CPC分类号： H02M7/538 ,  H02M2001/348

摘要： A power conversion circuit includes a high side switching device connected at its collector to the high potential side of a power supply, a low side switching device connected at its emitter to the low potential side of the power supply, a first junction to which the emitter of the high side switching device and the collector of the low side switching device are connected, a first diode connected at its cathode to the collector of the high side switching device, a second diode connected at its anode to the emitter of the low side switching device, a second junction to which the anode of the first diode and the cathode of the second diode are connected, an inductance connected between the first and second junctions, and a snubber circuit connected to the first junction and adapted to absorb stored energy in the inductance when a freewheeling current flows.

摘要翻译： 电源转换电路包括在其集电极处连接到电源的高电位侧的高侧开关装置，在其发射极处连接到电源的低电位侧的低侧开关装置，发射极 与低侧开关元件的集电极连接的第一二极管，其阴极与高侧开关元件的集电极连接，第二二极管在其阳极连接到低压侧开关的发射极 连接第一二极管的阳极和第二二极管的阴极的第二结，连接在第一和第二结之间的电感，以及连接到第一结的缓冲电路，并且适于吸收第二二极管中的存储能量 续流电流时的电感。

公开(公告)号：US20100328975A1

公开(公告)日：2010-12-30

申请号：US12918656

申请日：2009-03-10

申请人： Hiroshi Hibino ,  Morimitsu Sekimoto

发明人： Hiroshi Hibino ,  Morimitsu Sekimoto

IPC分类号： H02M7/06 ,  H02M7/5387

CPC分类号： H02M7/48 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/13091 ,  H02M7/003 ,  H02M2001/348 ,  H01L2924/00014 ,  H01L2924/00

摘要： In a power converter for converting AC power supplied from an AC power source or DC power supplied from a DC power source to DC power or AC power having predetermined voltage and frequency including at least one switching device (130) configured to be operable at high temperature, at least one snubber circuit (300) configured to be operable at high temperature and having a capacitor (301) configured to be operable at high temperature is provided.

摘要翻译： 在用于将从交流电源提供的AC电力或从DC电源提供的DC电力转换成具有预定电压和频率的预定电压和频率的AC电力的电力转换器中，所述交流电力包括至少一个被配置为在高温下可操作的开关装置 提供了至少一个缓冲电路（300），其配置为在高温下可操作并且具有被配置为在高温下可操作的电容器（301）。

公开(公告)号：US07196913B2

公开(公告)日：2007-03-27

申请号：US11302184

申请日：2005-12-14

申请人： Mamoru Tsuruya ,  Shinji Aso ,  Makoto Sato

发明人： Mamoru Tsuruya ,  Shinji Aso ,  Makoto Sato

IPC分类号： H02M3/335

CPC分类号： H02M1/34 ,  H02M3/33592 ,  H02M2001/348 ,  Y02B70/1475

摘要： A DC conversion apparatus includes a switch converting a DC voltage of a DC power source to a high-frequency voltage by being turned ON/OFF via a primary winding of a transformer, a series circuit of a switch and a clamp capacitor being connected to both ends of the primary winding, a synchronous rectifying circuit performing synchronous rectification of a high-frequency voltage generated at a secondary winding, a smoothing circuit smoothing a rectified output of the synchronous rectifying circuit by a smoothing reactor and a smoothing capacitor, a capacitor storing energy stored in the smoothing reactor due to a current backflow of the synchronous rectifying circuit caused under light load condition, a switch being turned ON in synchronization with the switch and returning the energy stored in the capacitor to the clamp capacitor on the primary side via the transformer, and a control circuit turning the switch and the switch ON/OFF states alternately.

摘要翻译： 直流转换装置包括通过经由变压器的初级绕组接通/断开将直流电源的直流电压转换为高频电压的开关，开关的串联电路和钳位电容器被连接到两者 初级绕组的端部，对次级绕组产生的高频电压进行同步整流的同步整流电路，平滑电抗器和平滑电容器平滑同步整流电路的整流输出的平滑电路，存储能量的电容器 存储在平滑电抗器中由于在轻负载条件下引起的同步整流电路的电流回流，开关与开关同步地导通，并且通过变压器将存储在电容器中的能量返回到初级侧的钳位电容器 并且交替地使开关和开关接通/断开状态的控制电路。