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1. 发明申请

US20110280048A1 DC-DC CONVERTER CIRCUIT 有权
标题翻译： DC-DC转换器电路
公开(公告)号：US20110280048A1
公开(公告)日：2011-11-17
申请号：US12680240
申请日：2009-02-25
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M1/34 , H02M2001/342 , Y02B70/1491
摘要： This DC-DC converter circuit includes a switching circuit which switches a DC power supply with a primary side switching element, a transformer to a primary side winding whereof the output of the switching circuit is applied and which outputs a voltage which has been changed by a predetermined voltage change ratio to a secondary side winding, and secondary diodes for current adjustment connected to the secondary side winding of the transformer. Moreover, it includes a regeneration snubber circuit connected in parallel with the secondary diode circuit and including a series circuit of a discharge blocking diode and a snubber capacitor and a switching element for regeneration connected in parallel with the discharge blocking diode, a filter circuit connected between rectification outputs of the secondary diode circuit, and a control unit which turns the switching element for regeneration ON a predetermined time period after the timing of turning the primary side switching element OFF. The predetermined time period is set to approximately the time period during which the charge, accumulated in the snubber capacitor due to reverse recovery time when one of the secondary diodes has been turned OFF, discharges.
摘要翻译：该DC-DC转换器电路包括：开关电路，其将具有初级侧开关元件的直流电源，变压器切换到施加开关电路的输出的初级侧绕组，并且输出由与次级侧绕组的预定电压变化率以及连接到变压器的次级侧绕组的用于电流调节的次级二极管。此外，它包括与次级二极管电路并联连接的再生缓冲电路，并且包括放电阻断二极管和缓冲电容器的串联电路以及用于与放电阻塞二极管并联连接的再生开关元件，滤波电路连接在二次二极管电路的整流输出，以及在使一次侧开关元件断开的定时之后的预定时间段内转动用于再生的开关元件的控制单元。预定时间周期被设定为近似于在二次二极管中的一个被截止时由于反向恢复时间而累积在缓冲电容器中的电荷放电的时间段。

2. 发明授权

US08400799B2 Inverter circuit with controller for controlling switching elements based on a magnitude of output power 有权
标题翻译：具有控制器的逆变器电路，用于根据输出功率的大小来控制开关元件
公开(公告)号：US08400799B2
公开(公告)日：2013-03-19
申请号：US12740432
申请日：2009-02-06
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02M5/42 , H02M7/68 , H02M3/24 , H02M7/44 , H02M7/5387 , H02M3/335
CPC分类号： H02M1/34 , H02M7/538 , H02M2001/342 , Y02B70/1491
摘要： This inverter circuit includes first and second switching elements and an output transformer which is provided with a first primary winding connected in series between said first and second switching elements, and also with a secondary winding for obtaining an output voltage. The inverter circuit is further provided with a first voltage supply, a second voltage supply, and a control unit. The first voltage supply applies voltage to said first switching element via said first primary winding. And the second voltage supply applies voltage to said second switching element via said second primary winding. The control unit turns said first switching element and said second switching element alternatingly ON and OFF. This inverter circuit also includes first and second regeneration snubber circuits for regenerating the charge charged into snubber capacitors.
摘要翻译：该逆变器电路包括第一和第二开关元件和输出变压器，输出变压器设置有串联连接在所述第一和第二开关元件之间的第一初级绕组，并且还具有用于获得输出电压的次级绕组。逆变器电路还设置有第一电压源，第二电压源和控制单元。第一电压源经由所述第一初级绕组向所述第一开关元件施加电压。并且第二电压源经由所述第二初级绕组将电压施加到所述第二开关元件。控制单元将所述第一开关元件和所述第二开关元件交替地接通和断开。该逆变器电路还包括用于再生充入缓冲电容器的电荷的第一和第二再生缓冲电路。

3. 发明授权

US08094469B2 Current balanced push-pull inverter circuit 有权
标题翻译：电流平衡推挽逆变电路
公开(公告)号：US08094469B2
公开(公告)日：2012-01-10
申请号：US12599310
申请日：2008-11-27
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02M3/335 , H02M7/538
CPC分类号： H02M3/3372 , H02M1/34 , H02M2001/342 , Y02B70/1491
摘要： This inverter circuit includes first and second switching elements and an output transformer which has a first primary winding connected in series between the first switching element and the second switching element and a second primary winding for obtaining an output voltage. The inverter circuit also includes a first voltage source, a second voltage source, and a control unit. The first voltage source is connected between a first connection point at which the first primary winding is connected to the second switching element, and the first switching element, and applies a voltage to the first switching element via the first primary winding. And the second voltage source is connected between a second connection point at which the first primary winding is connected to the first switching element, and the second switching element, and applies a voltage to the second switching element via the first primary winding. The control unit alternately turns the first switching element and the second switching element ON and OFF. And this inverter circuit also may include first and second recovery snubber circuits for recovering electrical charge in snubber capacitors.
摘要翻译：该逆变器电路包括第一和第二开关元件和输出变压器，其具有串联连接在第一开关元件和第二开关元件之间的第一初级绕组和用于获得输出电压的第二初级绕组。逆变器电路还包括第一电压源，第二电压源和控制单元。第一电压源连接在第一初级绕组连接到第二开关元件的第一连接点和第一开关元件之间，并且经由第一初级绕组将电压施加到第一开关元件。并且第二电压源连接在第一初级绕组连接到第一开关元件的第二连接点和第二开关元件之间，并且经由第一初级绕组将电压施加到第二开关元件。控制单元交替地使第一开关元件和第二开关元件接通和断开。并且该逆变器电路还可以包括用于恢复缓冲电容器中的电荷的第一和第二恢复缓冲电路。

4. 发明申请

US20110280054A1 INVERTER CIRCUIT 有权
标题翻译：逆变器电路
公开(公告)号：US20110280054A1
公开(公告)日：2011-11-17
申请号：US12599310
申请日：2008-11-27
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02M7/537
CPC分类号： H02M3/3372 , H02M1/34 , H02M2001/342 , Y02B70/1491
摘要： This inverter circuit includes first and second switching elements and an output transformer which has a first primary winding connected in series between the first switching element and the second switching element and a second primary winding for obtaining an output voltage. The inverter circuit also includes a first voltage source, a second voltage source, and a control unit. The first voltage source is connected between a first connection point at which the first primary winding is connected to the second switching element, and the first switching element, and applies a voltage to the first switching element via the first primary winding. And the second voltage source is connected between a second connection point at which the first primary winding is connected to the first switching element, and the second switching element, and applies a voltage to the second switching element via the first primary winding. The control unit alternately turns the first switching element and the second switching element ON and OFF. And this inverter circuit also may include first and second recovery snubber circuits for recovering electrical charge in snubber capacitors.
摘要翻译：该逆变器电路包括第一和第二开关元件和输出变压器，其具有串联连接在第一开关元件和第二开关元件之间的第一初级绕组和用于获得输出电压的第二初级绕组。逆变器电路还包括第一电压源，第二电压源和控制单元。第一电压源连接在第一初级绕组连接到第二开关元件的第一连接点和第一开关元件之间，并且经由第一初级绕组将电压施加到第一开关元件。并且第二电压源连接在第一初级绕组连接到第一开关元件的第二连接点和第二开关元件之间，并且经由第一初级绕组将电压施加到第二开关元件。控制单元交替地使第一开关元件和第二开关元件接通和断开。并且该逆变器电路还可以包括用于恢复缓冲电容器中的电荷的第一和第二恢复缓冲电路。

5. 发明申请

US20110049989A1 DC-DC CONVERTER CIRCUIT 有权
标题翻译： DC-DC转换器电路
公开(公告)号：US20110049989A1
公开(公告)日：2011-03-03
申请号：US12864267
申请日：2009-01-30
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02J4/00
CPC分类号： H02M3/3372 , H02M2001/346 , Y02B70/1491 , Y10T307/50
摘要： This inverter circuit includes two switching elements which are turned alternately ON and OFF, and a first primary winding connected in series between these switching elements, and also includes an output transformer having a secondary winding for obtaining an output voltage. This inverter circuit also includes a first voltage source and a second voltage source. The first voltage source applies a voltage to the first switching element via the first primary winding. And the second voltage source applies a voltage to the second switching element via the second primary winding. This inverter circuit also includes a regeneration snubber circuit for regenerating charge accumulated in a snubber capacitor. The regeneration snubber circuit includes a regeneration circuit including a voltage boost section which converts the primary side voltage of the output transformer to a predetermined voltage, which it outputs.
摘要翻译：该逆变器电路包括交替地接通和断开的两个开关元件和串联连接在这些开关元件之间的第一初级绕组，并且还包括具有用于获得输出电压的次级绕组的输出变压器。该逆变器电路还包括第一电压源和第二电压源。第一电压源经由第一初级绕组向第一开关元件施加电压。并且第二电压源经由第二初级绕组向第二开关元件施加电压。该逆变器电路还包括用于再生堆积在缓冲电容器中的电荷的再生缓冲电路。再生缓冲电路包括：再生电路，其包括将输出变压器的初级侧电压转换为预定电压的升压部，其输出。

6. 发明授权

US08873259B2 DC-DC converter including regeneration snubber circuit 有权
标题翻译： DC-DC转换器包括再生缓冲电路
公开(公告)号：US08873259B2
公开(公告)日：2014-10-28
申请号：US12680240
申请日：2009-02-25
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02H7/122 , H02M1/34 , H02M3/335
CPC分类号： H02M3/33569 , H02M1/34 , H02M2001/342 , Y02B70/1491
摘要： A DC-DC converter includes a regeneration snubber circuit. The snubber circuit is connected in parallel with the secondary diode circuit and includes a series circuit of a discharge blocking diode, a snubber capacitor, and a switching element for regeneration connected in parallel with the discharge blocking diode. The DC-DC converter further includes a control unit which turns the switching element for regeneration on a predetermined time period after the timing of turning the primary side switching element off. The predetermined time period is set to approximately the time period during which the charge, accumulated in the snubber capacitor due to reverse recovery time when one of the secondary diodes has been turned off, discharges.
摘要翻译： DC-DC转换器包括再生缓冲电路。缓冲电路与次级二极管电路并联连接，并且包括放电阻塞二极管，缓冲电容器和用于与放电阻塞二极管并联连接的再生开关元件的串联电路。 DC-DC转换器还包括一个控制单元，该控制单元在关闭初级侧开关元件的定时之后的预定时间段内转动用于再生的开关元件。预定时间周期被设定为近似于当二次二极管中的一个被截止时由于反向恢复时间而累积在缓冲电容器中的电荷放电的时间周期。

7. 发明授权

US08107265B2 Current balanced push-pull inverter circuit with regeneration snubber circuit and voltage boost section 有权
标题翻译：具有再生缓冲电路和升压段的电流平衡推挽逆变电路
公开(公告)号：US08107265B2
公开(公告)日：2012-01-31
申请号：US12864267
申请日：2009-01-30
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02M3/335 , H02M7/538
CPC分类号： H02M3/3372 , H02M2001/346 , Y02B70/1491 , Y10T307/50
摘要： This inverter circuit includes two switching elements which are turned alternately ON and OFF, and a first primary winding connected in series between these switching elements, and also includes an output transformer having a secondary winding for obtaining an output voltage. This inverter circuit also includes a first voltage source and a second voltage source. The first voltage source applies a voltage to the first switching element via the first primary winding. And the second voltage source applies a voltage to the second switching element via the second primary winding. This inverter circuit also includes a regeneration snubber circuit for regenerating charge accumulated in a snubber capacitor. The regeneration snubber circuit includes a regeneration circuit including a voltage boost section which converts the primary side voltage of the output transformer to a predetermined voltage, which it outputs.
摘要翻译：该逆变器电路包括交替地接通和断开的两个开关元件和串联连接在这些开关元件之间的第一初级绕组，并且还包括具有用于获得输出电压的次级绕组的输出变压器。该逆变器电路还包括第一电压源和第二电压源。第一电压源经由第一初级绕组向第一开关元件施加电压。并且第二电压源经由第二初级绕组向第二开关元件施加电压。该逆变器电路还包括用于再生堆积在缓冲电容器中的电荷的再生缓冲电路。再生缓冲电路包括：再生电路，其包括将输出变压器的初级侧电压转换为预定电压的升压部，其输出。

8. 发明申请

US20110058395A1 INVERTER CIRCUIT 有权
标题翻译：逆变器电路
公开(公告)号：US20110058395A1
公开(公告)日：2011-03-10
申请号：US12864271
申请日：2009-03-10
申请人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
发明人： Toshikazu Fujiyoshi , Hajime Katsushima , Kenji Morimoto , Satoshi Yamamura
IPC分类号： H02M3/335
CPC分类号： H02M3/3372 , H02M2001/348
摘要： This current balanced push-pull type inverter circuit includes first and second switching elements, and an output transformer which includes a first primary winding and a second primary winding connected in series between said first and second switching elements, and also includes a secondary winding for obtaining an output voltage. This inverter circuit also includes a first voltage supply capacitor, a second voltage supply capacitor, and a control unit. A first snubber circuit, in which a first free wheel diode and first and second snubber capacitors are connected in series, is connected in inverse parallel to the first switching element. A first discharge resistor is connected between the first snubber capacitor and a first power supply capacitor, and a second discharge resistor is connected between the second snubber capacitor and a third power supply capacitor. And a second snubber circuit and discharge resistors are connected to the second switching element as well, in a similar manner.
摘要翻译：该电流平衡推挽型逆变器电路包括第一和第二开关元件，以及包括在所述第一和第二开关元件之间串联连接的第一初级绕组和第二初级绕组的输出变压器，还包括用于获得输出电压。该逆变器电路还包括第一电压供应电容器，第二电压供应电容器和控制单元。其中第一自由轮二极管和第一和第二缓冲电容器串联连接的第一缓冲电路与第一开关元件反向并联连接。第一放电电阻器连接在第一缓冲电容器和第一电源电容器之间，第二放电电阻器连接在第二缓冲电容器和第三电源电容器之间。并且第二缓冲电路和放电电阻也以类似的方式连接到第二开关元件。

9. 发明申请

US20120243263A1 DC-DC CONVERTER CIRCUIT 有权
标题翻译： DC-DC转换器电路
公开(公告)号：US20120243263A1
公开(公告)日：2012-09-27
申请号：US13063070
申请日：2009-12-16
申请人： Hajime Katsushima , Toshikazu Fujiyoshi , Kenji Morimoto , Hajime Yamamoto , Satoshi Yamamura
发明人： Hajime Katsushima , Toshikazu Fujiyoshi , Kenji Morimoto , Hajime Yamamoto , Satoshi Yamamura
IPC分类号： H02M3/335
CPC分类号： H02M3/3384 , H02M3/3372 , H02M2001/342 , Y02B70/1491
摘要： This DC-DC converter circuit includes: first and second switching elements (S1, S2); an output transformer (T) that includes a first primary winding (P1) connected in series between the positive electrode sides of the first and second switching elements (S1, S2), a second primary winding (P2) connected in series between their negative electrode sides, a secondary winding (S) for obtaining an output voltage, and tertiary windings (n3, n4); a first voltage source (C1), connected between a first connection point at which the first primary winding (P1) is connected to the second switching element (S2) and the first switching element (S1), that applies a voltage to the first switching element via the first primary winding; a second voltage source (C2) connected to locations symmetric with those of the first voltage source (C1); and a control unit (CT) that turns the first and second switching elements (S1, S2) alternatingly ON and OFF, and first and second regeneration snubber circuits (SN1, SN2) for regenerating the charge in snubber capacitors (C3, C4) to the voltage sources (C1, C2); and these regeneration snubber circuits (SN1, SN2) include third and fourth switching elements (S3, S4) driven by the output voltages of the tertiary windings (n3, n4).
摘要翻译：该DC-DC转换器电路包括：第一和第二开关元件（S1，S2）; 输出变压器（T），包括串联连接在第一和第二开关元件（S1，S2）的正极侧之间的第一初级绕组（P1），串联连接在它们的负极侧面，用于获得输出电压的次级绕组（S）和三次绕组（n3，n4）; 连接在第一初级绕组（P1）与第二开关元件（S2）连接的第一连接点和第一开关元件（S1）之间的第一电压源（C1），其向第一开关施加电压元件经由第一初级绕组; 连接到与第一电压源（C1）对称的位置的第二电压源（C2）; 以及将第一和第二开关元件（S1，S2）交替地导通和截止的控制单元（CT），以及用于将缓冲电容器（C3，C4）中的电荷再生的第一和第二再生缓冲电路（SN1，SN2）至电压源（C1，C2）; 这些再生缓冲电路（SN1，SN2）包括由三级绕组（n3，n4）的输出电压驱动的第三和第四开关元件（S3，S4）。

10. 发明授权

US08363432B2 DC-DC converter circuit 有权
标题翻译： DC-DC转换器电路
公开(公告)号：US08363432B2
公开(公告)日：2013-01-29
申请号：US13063070
申请日：2009-12-16
申请人： Hajime Katsushima , Toshikazu Fujiyoshi , Kenji Morimoto , Hajime Yamamoto , Satoshi Yamamura
发明人： Hajime Katsushima , Toshikazu Fujiyoshi , Kenji Morimoto , Hajime Yamamoto , Satoshi Yamamura
IPC分类号： H02M3/335 , H02M7/538
CPC分类号： H02M3/3384 , H02M3/3372 , H02M2001/342 , Y02B70/1491
摘要： This DC-DC converter circuit includes: first and second switching elements (S1, S2); an output transformer (T) that includes a first primary winding (P1) connected in series between the positive electrode sides of the first and second switching elements (S1, S2), a second primary winding (P2) connected in series between their negative electrode sides, a secondary winding (S) for obtaining an output voltage, and tertiary windings (n3, n4); a first voltage source (C1), connected between a first connection point at which the first primary winding (P1) is connected to the second switching element (S2) and the first switching element (S1), that applies a voltage to the first switching element via the first primary winding; a second voltage source (C2) connected to locations symmetric with those of the first voltage source (C1); and a control unit (CT) that turns the first and second switching elements (S1, S2) alternatingly ON and OFF, and first and second regeneration snubber circuits (SN1, SN2) for regenerating the charge in snubber capacitors (C3, C4) to the voltage sources (C1, C2); and these regeneration snubber circuits (SN1, SN2) include third and fourth switching elements (S3, S4) driven by the output voltages of the tertiary windings (n3, n4).
摘要翻译：该DC-DC转换器电路包括：第一和第二开关元件（S1，S2）; 输出变压器（T），包括串联连接在第一和第二开关元件（S1，S2）的正极侧之间的第一初级绕组（P1），串联连接在它们的负极侧面，用于获得输出电压的次级绕组（S）和三次绕组（n3，n4）; 连接在第一初级绕组（P1）与第二开关元件（S2）连接的第一连接点和第一开关元件（S1）之间的第一电压源（C1），其向第一开关施加电压元件经由第一初级绕组; 连接到与第一电压源（C1）对称的位置的第二电压源（C2）; 以及将第一和第二开关元件（S1，S2）交替地导通和截止的控制单元（CT），以及用于将缓冲电容器（C3，C4）中的电荷再生的第一和第二再生缓冲电路（SN1，SN2）至电压源（C1，C2）; 这些再生缓冲电路（SN1，SN2）包括由三级绕组（n3，n4）的输出电压驱动的第三和第四开关元件（S3，S4）。

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