公开(公告)号：US20070236966A1

公开(公告)日：2007-10-11

申请号：US11627393

申请日：2007-01-26

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

IPC分类号： H02M3/335

CPC分类号： H02M3/158

摘要： A unidirectional DC-DC converter which has a simple control circuit without using multiple insulated power supplies, uses an auxiliary inductor of a comparatively small capacitance, reduces the size and weight of the converter, and has a very great capacitance without switching of supply current.A unidirectional DC-DC converter equipped with main IGBT101 which supplies and shuts off current for first inductor 108a and diode 107 which discharges energy from main inductor 108a to an output, wherein the DC-DC converter is further equipped with auxiliary IGBT104 which applies current to back-to-back-connected diode 102 by using energy stored in auxiliary inductor 108b which is magnetically coupled with main inductor 108a. This applies current to the back-to-back-connected diode in a short period including a time period in which the first switching element is turned on and accomplishes ZVZCS.

摘要翻译： 具有简单的控制电路而不使用多个绝缘电源的单向DC-DC转换器使用相对小的电容的辅助电感器，减小了转换器的尺寸和重量，并且具有非常大的电容而不需要切换电源电流。 配备有主IGBT101的单向DC-DC转换器，其向第一电感器108a和二极管107提供和切断电流，该二极管107将主电感器108a的能量放电到输出，其中DC-DC转换器还配备有辅助IGBT 104 其通过使用存储在与主电感器108a磁耦合的辅助电感器108b中的能量来将电流施加到背对背连接的二极管102。 这在短时间内将电流施加到背对背连接的二极管，包括第一开关元件接通并实现ZVZCS的时间段。

公开(公告)号：US07551462B2

公开(公告)日：2009-06-23

申请号：US11348348

申请日：2006-02-07

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

IPC分类号： H02M5/42 ,  H02M7/04 ,  H02M7/68

CPC分类号： H02M3/158 ,  H02M2001/342 ,  Y02B70/1425 ,  Y02B70/1491

摘要： A soft switching DC-DC converter is provided which includes circuitry for both a buck converter and a boost converter. The buck converter circuitry and the boost converter circuitry share a common transformer including a primary coil and first and second secondary coils. A first switching element is coupled to a first capacitor to provide the buck converter operation while another switching element is provided to provide the boost converting operation. The primary coil of the transformer is commonly used as a choke coil by both the buck converter and the boost converter. In this way, size and cost reduction can be obtained.

摘要翻译： 提供了一种软开关DC-DC转换器，其包括用于降压转换器和升压转换器的电路。 降压转换器电路和升压转换器电路共享共同的变压器，其包括初级线圈和第一和第二次级线圈。 第一开关元件耦合到第一电容器以提供降压转换器操作，同时提供另一开关元件以提供升压转换操作。 变压器的初级线圈通常由降压转换器和升压转换器用作扼流线圈。 以这种方式，可以获得尺寸和成本降低。

公开(公告)号：US08207717B2

公开(公告)日：2012-06-26

申请号：US12888893

申请日：2010-09-23

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Yasuo Kaminaga ,  Akihiko Kanouda

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Yasuo Kaminaga ,  Akihiko Kanouda

IPC分类号： G05F1/618

CPC分类号： H02M3/1582 ,  H02M1/4208 ,  Y02B70/126

摘要： A unidirectional DC-DC converter and method of control thereof. The converter includes a DC power-supply, a buck converter circuit having a first main switching element, a boost converter circuit having a second main switching element, a first snubber capacitor, a first inversely-parallel diode, a control device, and an output diode.

摘要翻译： 一种单向DC-DC转换器及其控制方法。 该转换器包括直流电源，具有第一主开关元件的降压转换器电路，具有第二主开关元件的升压转换器电路，第一缓冲电容器，第一反并联二极管，控制器件和输出 二极管。

公开(公告)号：US07557546B2

公开(公告)日：2009-07-07

申请号：US11627393

申请日：2007-01-26

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

IPC分类号： G05F1/24

CPC分类号： H02M3/158

摘要： A unidirectional DC-DC converter which has a simple control circuit without using multiple insulated power supplies or a transformer, uses an auxiliary inductor of a comparatively small capacitance, reduces the size and weight of the converter, and has a very great capacitance without switching of supply current. For example, a unidirectional DC-DC converter equipped with main IGBT101 which supplies and shuts off current for first inductor 108a and diode 107 which discharges energy from main inductor 108a to an the output. The DC-DC converter is further equipped with auxiliary IGBT104 which applies current to back-to-back-connected diode 102 by using energy stored in auxiliary inductor 108b which is magnetically coupled with main inductor 108a. This applies current to the back-to-back-connected diode in a short period including a time period in which the first switching element is turned on and accomplishes ZVZCS.

摘要翻译： 具有简单的控制电路而不使用多个绝缘电源或变压器的单向DC-DC转换器使用相对小的电容的辅助电感器，减小了转换器的尺寸和重量，并且具有非常大的电容，而无需切换 供电电流。 例如，配备有主IGBT101的单向DC-DC转换器，其向第一电感器108a和二极管107提供和切断电流，第一电感器108a和二极管107将能量从主电感器108a放电到输出端。 DC-DC转换器还配备有辅助IGBT104，其通过使用与主电感器108a磁耦合的辅助电感器108b中存储的能量来将电流施加到背对背连接的二极管102。 这在短时间内将电流施加到背对背连接的二极管，包括第一开关元件接通并实现ZVZCS的时间段。

公开(公告)号：US20080100273A1

公开(公告)日：2008-05-01

申请号：US11876826

申请日：2007-10-23

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Yasuo Kaminaga ,  Akihiko Kanouda

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Yasuo Kaminaga ,  Akihiko Kanouda

IPC分类号： G05F1/44 ,  G05F1/10

CPC分类号： H02M3/1582 ,  H02M1/4208 ,  Y02B70/126

摘要： A buck converter circuit and a boost converter circuit, which co-use a main inductor, are connected in series with each other between a DC power-supply and a DC load between output terminals a-b of a rectifier circuit. Moreover, utilizing energy accumulated into first and second auxiliary inductors which are loosely coupled to the main inductor magnetically, a current is flown through diodes during a short time-period including a point-in-time at which main switching elements of the buck and boost converter circuits are to be turned ON. Here, the diodes are connected in inversely parallel to the main switching elements.

摘要翻译： 在整流电路的输出端子a-b之间的直流电源和直流负载之间，共同使用主电感器的降压转换器电路和升压转换器电路彼此串联连接。 此外，利用积累在松耦合到主电感器的第一和第二辅助电感器中的能量，在包括降压和升压的主开关元件的时间点的短时间段期间，电流流过二极管 转换器电路要接通。 这里，二极管与主开关元件相反地并联连接。

公开(公告)号：US20060176719A1

公开(公告)日：2006-08-10

申请号：US11348348

申请日：2006-02-07

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Akihiko Kanouda ,  Yasuo Kaminaga

IPC分类号： H02M7/04 ,  H02M5/42

CPC分类号： H02M3/158 ,  H02M2001/342 ,  Y02B70/1425 ,  Y02B70/1491

摘要： The present invention relates to a soft switching DC-DC converter. A soft switching DC-DC converter comprises a first switching element having a first terminal connected to an input side and having a control terminal for controlling a main electric current; a first diode having a first terminal connected to a second terminal of this first switching element; a primary coil of a transformer having primary and secondary coils, connected to the second terminal of the first switching element; a second diode having a first terminal connected to the first terminal of the first switching element; a second switching element having a first terminal connected to the second terminal of this second diode; and the secondary coil of the transformer, having a first terminal connected to a second terminal of this second switching element, and having a second terminal connected to the second terminal of the first switching element. The soft switching DC-DC converter allows a substantial reduction of the loss in the capacitor operation, by including a resonant circuit composed of a transformer.

摘要翻译： 本发明涉及一种软开关DC-DC转换器。 软开关DC-DC转换器包括：第一开关元件，其具有连接到输入侧的第一端子，并具有用于控制主电流的控制端子; 第一二极管，具有连接到该第一开关元件的第二端子的第一端子; 变压器的初级线圈，其具有连接到第一开关元件的第二端子的初级和次级线圈; 第二二极管，具有连接到第一开关元件的第一端子的第一端子; 第二开关元件，其具有连接到该第二二极管的第二端子的第一端子; 和变压器的次级线圈，其具有连接到该第二开关元件的第二端子的第一端子，并且具有连接到第一开关元件的第二端子的第二端子。 通过包括由变压器组成的谐振电路，软开关DC-DC转换器允许电容器操作中的损耗显着降低。

公开(公告)号：US20100061122A1

公开(公告)日：2010-03-11

申请号：US12544160

申请日：2009-08-19

申请人： Toshikazu OKUBO ,  Takae Shimada ,  Hiroyuki Shoji ,  Junpei Uruno

发明人： Toshikazu OKUBO ,  Takae Shimada ,  Hiroyuki Shoji ,  Junpei Uruno

IPC分类号： H02M3/335

CPC分类号： H02M3/158 ,  H02M2001/342 ,  Y02B70/1491

摘要： A small and efficient DC-DC converter is provided. In this DC-DC converter, passive elements such as an inductor and a capacitor can be reduced in size by reducing switching loss by a soft switching technology and increasing the drive frequency of a switching element. The DC-DC converter has a main switching element, a main diode and an auxiliary circuit that discharges the electric charges of the capacitance between the ends of the main switching element. The DC-DC converter includes an auxiliary inductor magnetically coupled with the main inductor, an auxiliary switching element that stores energy in the auxiliary inductor, and an auxiliary diode that discharges energy stored in the auxiliary inductor to the direct-current power source or the output side. The auxiliary inductor is coupled with the main inductor in the direction in which backward voltage is applied to the auxiliary diode when the main inductor discharges energy.

摘要翻译： 提供一个小型高效的DC-DC转换器。 在这种DC-DC转换器中，诸如电感器和电容器的无源元件的尺寸可以通过软开关技术减少开关损耗并增加开关元件的驱动频率来减小。 DC-DC转换器具有主开关元件，主二极管和辅助电路，其对主开关元件的端部之间的电容的电荷进行放电。 DC-DC转换器包括与主电感器磁耦合的辅助电感器，在辅助电感器中存储能量的辅助开关元件和将辅助电感器中存储的能量放电到直流电源或输出端的辅助二极管 侧。 当主电感器放电时，辅助电感器与主电感器耦合到向辅助二极管施加反向电压的方向。

公开(公告)号：US08614568B2

公开(公告)日：2013-12-24

申请号：US13028675

申请日：2011-02-16

申请人： Junpei Uruno ,  Hiroyuki Shoji ,  Masayuki Isogai

发明人： Junpei Uruno ,  Hiroyuki Shoji ,  Masayuki Isogai

IPC分类号： G05F1/10

CPC分类号： H02M7/538 ,  H02M1/08 ,  H03K17/168 ,  H03K2217/0036 ,  H03K2217/0081

摘要： A power converting apparatus having a gate drive circuit including a push-pull circuit consisting of two transistors at its output stage; a diode connected in series with the push-pull circuit; a gate power source connected in parallel with the series circuit of the push-pull circuit and the diode; a negative voltage generating circuit connected in parallel with the push-pull circuit; a transistor connected between the output terminal of the negative voltage generating circuit and the negative terminal of the gate power source, wherein the output voltage of the push-pull circuit is switched from positive polarity to negative polarity and vice versa depending on the signal applied to the base terminals of the transistors.

摘要翻译： 一种电力转换装置，具有在其输出级包括由两个晶体管组成的推挽电路的栅极驱动电路; 与推挽电路串联连接的二极管; 与推挽电路和二极管的串联电路并联连接的栅极电源; 与推挽电路并联连接的负电压发生电路; 连接在负电压发生电路的输出端子和栅极电源的负极端子之间的晶体管，其中推挽电路的输出电压根据施加到负极电压的信号从正极性切换到负极性，反之亦然 晶体管的基极端子。

公开(公告)号：US08203322B2

公开(公告)日：2012-06-19

申请号：US12544160

申请日：2009-08-19

申请人： Toshikazu Okubo ,  Takae Shimada ,  Hiroyuki Shoji ,  Junpei Uruno

发明人： Toshikazu Okubo ,  Takae Shimada ,  Hiroyuki Shoji ,  Junpei Uruno

IPC分类号： G05F1/40

CPC分类号： H02M3/158 ,  H02M2001/342 ,  Y02B70/1491

摘要： A small and efficient DC-DC converter is provided. In this DC-DC converter, passive elements such as an inductor and a capacitor can be reduced in size by reducing switching loss by a soft switching technology and increasing the drive frequency of a switching element. The DC-DC converter has a main switching element, a main diode and an auxiliary circuit that discharges the electric charges of the capacitance between the ends of the main switching element. The DC-DC converter includes an auxiliary inductor magnetically coupled with the main inductor, an auxiliary switching element that stores energy in the auxiliary inductor, and an auxiliary diode that discharges energy stored in the auxiliary inductor to the direct-current power source or the output side. The auxiliary inductor is coupled with the main inductor in the direction in which backward voltage is applied to the auxiliary diode when the main inductor discharges energy.

摘要翻译： 提供一个小型高效的DC-DC转换器。 在这种DC-DC转换器中，诸如电感器和电容器的无源元件的尺寸可以通过软开关技术减少开关损耗并增加开关元件的驱动频率来减小。 DC-DC转换器具有主开关元件，主二极管和辅助电路，其对主开关元件的端部之间的电容的电荷进行放电。 DC-DC转换器包括与主电感器磁耦合的辅助电感器，在辅助电感器中存储能量的辅助开关元件和将辅助电感器中存储的能量放电到直流电源或输出端的辅助二极管 侧。 当主电感器放电时，辅助电感器与主电感器耦合到向辅助二极管施加反向电压的方向。

公开(公告)号：US06539928B2

公开(公告)日：2003-04-01

申请号：US09790544

申请日：2001-02-23

申请人： Yasuhiko Kohno ,  Junpei Uruno ,  Mutsuhiro Mori

发明人： Yasuhiko Kohno ,  Junpei Uruno ,  Mutsuhiro Mori

IPC分类号： F02P300

CPC分类号： F02P3/04 ,  F02P3/0552

摘要： A circuit for supplying an oscillation suppress current is provided between a collector terminal and gate electrode of a main IGBT. The current supply circuit comprises a resistor and a diode which are connected in series. A bypass MOSFET is connected between the series connection and the emitter terminal. No semiconductor element having different temperature characteristics is provided in the current supply circuit.