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1. 发明授权

US5886888A Voltage source type power converting apparatus 失效
标题翻译：电压型电力转换装置
公开(公告)号：US5886888A
公开(公告)日：1999-03-23
申请号：US638054
申请日：1996-04-26
申请人： Masahiko Akamatsu , Shinzo Tamai , Fuminori Nakamura , Shotaro Murakami , Tomohiko Aritsuka , Takeaki Asaeda
发明人： Masahiko Akamatsu , Shinzo Tamai , Fuminori Nakamura , Shotaro Murakami , Tomohiko Aritsuka , Takeaki Asaeda
IPC分类号： H02M7/155 , H02J3/01 , H02J3/36 , H02M7/12 , H02M7/17 , H02M7/19 , H02M7/72 , H02M7/515
CPC分类号： H02J3/36 , H02J3/01 , H02M7/17 , H02M7/19 , H02M7/493 , H02M7/23 , H02M7/25 , H02M7/487 , Y02E40/10 , Y02E40/40 , Y02E60/60
摘要： A voltage source type power converting apparatus having voltage source type power converter units and phase-shifting transformers. The transformers have either a common multiple-phase primary winding or a group of parallel connected multiple-phase primary windings, either of which being connected in parallel or series to a multiple-phase AC system. The transformer further include a group of multiple-phase secondary windings with phase differences with respect to each other and which are connected to voltage source type power converter units. The voltage source type power converter units are operated with the phase differences. Accordingly, the construction of the multiplexing phase-shifting transformer is simple, and fundamental electric variables can be controlled by a simple phase controlling operation. In addition, a higher harmonic defect of the AC system can be reduced, and the DC voltage can be easily raised.
摘要翻译：一种具有电压型功率转换器单元和移相变压器的电压型电力转换装置。变压器具有公共多相初级绕组或一组并联的多相初级绕组，其中任一个并联或串联连接到多相AC系统。该变压器还包括一组相对于彼此具有相位差并连接到电压源型功率转换器单元的多相次级绕组。电压源式功率转换器单元以相位差运行。因此，复用移相变压器的构造简单，可以通过简单的相位控制操作来控制基本的电变量。此外，可以降低AC系统的高次谐波缺陷，并且可以容易地提高DC电压。

2. 发明授权

US4906860A Control device for active filter 失效
标题翻译：有源滤波器控制装置
公开(公告)号：US4906860A
公开(公告)日：1990-03-06
申请号：US347874
申请日：1989-05-05
申请人： Takeaki Asaeda
发明人： Takeaki Asaeda
IPC分类号： G05F1/70 , H02J3/01
CPC分类号： H02J3/01 , G05F1/70 , Y02E40/40
摘要： A control device for an active filter according to the present invention comprises a ROM circuit for producing output signals sin .theta. and cos .theta. from a phase signal generated from a PLL circuit, a first multiplier for multiplying a load current detection signal by the output signals sin .theta. and cos .theta., a sample-holding circuit for integrating the output signal of the first multiplier and holding the integrated value to produce peak values of valid current component and invalid current component for constituting the basic wave component of the load current, a second multiplier for multiplying the peak values by the output signals sin .theta. and cos .theta., and a PWM control circuit for PWM-controlling the input current of the active filter with a harmonic current signal obtained as the difference between a basic wave current signal of the load current during a period of next one period of the single-phase a.c. power source and the load current detection signal by utlizing as the basic wave current signal of the load current of the period of next one period of the single-phase a.c. power source the basic wave current signal obtained by combining the valid current component and the invalid current component of the basic wave component outputted from the second multiplier.

3. 发明授权

US4710862A Inverter 失效
标题翻译：逆变器
公开(公告)号：US4710862A
公开(公告)日：1987-12-01
申请号：US720962
申请日：1985-04-08
申请人： Takeaki Asaeda
发明人： Takeaki Asaeda
IPC分类号： H02M7/521 , H02M7/48 , H02M7/515 , H02H7/122
CPC分类号： H02M7/5157
摘要： An inverter comprises a pair of reactors connected in series between a positive arm element and a negative arm element, snubbers each connected in parallel to respective arm elements, and a feedback circuit for transferring electrical energy stored in the snubbers back to the d.c. power source. The feedback circuit includes a self turn-off switching device which is controlled to become conductive during a certain period in correspondence to the on-off operation of the arm elements so that energy stored in the snubbers is fed back to the d.c. power source through a current transformer and a rectifying circuit during the on-state of the device.
摘要翻译：逆变器包括串联连接在正臂元件和负臂元件之间的一对电抗器，每个与各个臂元件并联连接的缓冲器和用于将存储在缓冲器中的电能传送回直流的反馈电路。能量源。反馈电路包括自关断开关装置，其被控制成在与臂元件的开 - 关操作相对应的一定时间段内变为导通，使得存储在缓冲器中的能量被反馈到直流。电源通过电流互感器和整流电路在接通状态的器件。

4. 发明授权

US06535406B1 Three-level inverter controller reducing commutation loop inductance 有权
标题翻译：三电平逆变器控制器减少换向回路电感
公开(公告)号：US06535406B1
公开(公告)日：2003-03-18
申请号：US10093728
申请日：2002-03-11
申请人： Takeaki Asaeda , Hiroshi Masunaga
发明人： Takeaki Asaeda , Hiroshi Masunaga
IPC分类号： H02M75387
CPC分类号： H02M7/487 , H02M7/5395
摘要： In a gate control device for four self-arc extinction elements connected in series and two self-arc extinction elements connected in reverse parallel between the respective terminals of clamp diodes, individually, there is provided a PWM circuit that generates conduction control commands, and a gate control circuit including a delay circuit group that generates gate signals with respect to the respective self-arc extinction elements on the basis of respective conduction control commands. A pair of the self-arc extinction elements are rendered conductive at the same time, and another pair of the self-arc extinction elements are rendered conductive at the same time.
摘要翻译：在用于串联连接的四个自消弧元件和两个钳位二极管的各个端子之间反向并联连接的自消光元件的门控制装置中，分别提供产生导通控制命令的PWM电路，以及门控制电路包括基于相应的传导控制命令相对于相应的自消光元件产生门信号的延迟电路组。一对自消光元件同时导通，另一对自弧消光元件同时导通。

5. 发明授权

US06479882B2 Current-limiting device 有权
公开(公告)号：US06479882B2
公开(公告)日：2002-11-12
申请号：US09737962
申请日：2000-12-18
申请人： Yoshihiro Yamaguchi , Takeaki Asaeda , Katsumi Satoh , Noritoshi Hirano
发明人： Yoshihiro Yamaguchi , Takeaki Asaeda , Katsumi Satoh , Noritoshi Hirano
IPC分类号： H01L2900
CPC分类号： H01C7/12 , H01L27/0288 , H01L29/8605 , H01L29/861 , H02H9/02
摘要： The current-limiting device 1 includes a silicon substrate 2 having surfaces opposite to each other, and two electrodes 3 deposited respectively on the opposite surfaces of the silicon substrate. The silicon substrate 2 is of a three-layered structure including an N− layer 4 of a low impurity density and an N+ layers 5 of a high impurity density formed respectively on opposite surfaces of the N− layer 4. The electrodes 3, are deposited on an outer surface of each of the N+ layers 5 remote from the N− layer 4. The constant current substantially flows in the current-limiting device 1 if the applied voltage is higher than a predetermined value.

6. 发明授权

US4639850A Power converter device 失效
标题翻译：电源转换器
公开(公告)号：US4639850A
公开(公告)日：1987-01-27
申请号：US650370
申请日：1984-09-20
申请人： Takeaki Asaeda , Toru Nakamura , Takashi Yutani
发明人： Takeaki Asaeda , Toru Nakamura , Takashi Yutani
IPC分类号： H02M5/27 , H02M7/515 , H02H7/122
CPC分类号： H02M7/515 , H02M5/27 , H02M7/5155
摘要： A power conversion device such as an inverter using as bridge arm elements self-extinguishing-type switching elements for converting D-C input power into A-C load power. Snubbers, each including a capacitor and a diode in series, are connected in parallel with the switching elements. A discharging circuit, having a diode is connected across the diodes of the snubbers, and a power source feedback circuit, including a current transformer, are employed to return the current discharged from the snubbers to the input power source, thereby enhancing conversion efficiency.
摘要翻译： PCT No.PCT / JP84 / 00144 Sec。 371日期1984年9月20日 102（e）1984年9月20日PCT文件1984年3月28日PCT公布。出版物WO84 / 04004 日期：1984年10月11日。一种功率转换装置，例如使用桥臂元件自熄型开关元件的逆变器，用于将D-C输入功率转换为A-C负载功率。每个包括电容器和串联的二极管的缓冲器与开关元件并联连接。具有二极管的放电电路连接在缓冲器的二极管两端，并且使用包括电流互感器的电源反馈电路将从缓冲器放电的电流返回到输入电源，从而提高转换效率。

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