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31. 发明授权

US5065304A Controller for AC power converter 失效
标题翻译：交流电源转换器控制器
公开(公告)号：US5065304A
公开(公告)日：1991-11-12
申请号：US557237
申请日：1990-07-25
申请人： Shinzo Tamai , Hidehiko Sugimoto
发明人： Shinzo Tamai , Hidehiko Sugimoto
IPC分类号： H02H7/122 , H02M7/48
CPC分类号： H02M7/53875
摘要： A controller for AC power converter having an LC filter connected to a load, can suppress fluctuation of the output bus voltage against disturbance, particularly against fluctuation of load current by calculating a capacitor current command from a voltage feed back value and then adding an interference component caused by a reactor and a capacitor to the voltage command of the AC power converter.
摘要翻译：具有连接到负载的LC滤波器的AC电力转换器的控制器可以通过从电压反馈值计算电容器电流指令来抑制输出总线电压对干扰的波动，特别是对负载电流的波动，然后将干扰分量由电抗器和电容器引起的交流电源转换器的电压指令。

32. 发明授权

US4991075A Low-switching loss DC-DC converter 失效
标题翻译：低开关损耗DC-DC转换器
公开(公告)号：US4991075A
公开(公告)日：1991-02-05
申请号：US475979
申请日：1990-02-06
申请人： Akira Saitou , Osamu Takahashi , Seigou Tsukada , Yasuyuki Sohara , Hideki Tsuruse , Hidehiko Sugimoto
发明人： Akira Saitou , Osamu Takahashi , Seigou Tsukada , Yasuyuki Sohara , Hideki Tsuruse , Hidehiko Sugimoto
IPC分类号： H02M3/335
CPC分类号： H02M3/33538
摘要： A DC-DC converter comprises a switching element having a rise time t.sub.on and a fall time t.sub.off ; a control device for controlling the switching operation of the switching element; a transformer having a primary winding and a secondary winding, the primary winding being connected to a DC power source through the switching element, and having an open inductance L.sub.M ; an inductance coil having an inductance L connected to the secondary winding of the transformer; and a rectifying device for rectifying the output from the secondary winding of the transformer; assuming that the voltage applied to the primary winding of the transformer is E, the load current flowing through the transformer is I.sub.D, and the sum of the stray capacitance of the switching element and the distributed capacity of the windings of the transformer is C1, the following relational expressions being established:L>(E/I.sub.D)T.sub.onandL.sub.M >t.sub.off.sup.2 /.pi..sup.2 Cl
摘要翻译： DC-DC转换器包括具有上升时间吨和下降时间toff的开关元件; 控制装置，用于控制开关元件的开关动作; 具有初级绕组和次级绕组的变压器，所述初级绕组通过所述开关元件连接到DC电源，并且具有开路电感LM; 具有与变压器的次级绕组连接的电感L的电感线圈; 以及整流装置，用于对变压器的次级绕组的输出进行整流; 假设施加到变压器的初级绕组的电压为E，流过变压器的负载电流为ID，开关元件的杂散电容和变压器绕组的分布电容之和为C1，建立以下关系式：L>（E / ID）Ton和LM> toff2 / pi 2Cl

33. 发明授权

US4484257A Series-connected assembly of electronic switches 失效
标题翻译：串联式电子开关组装
公开(公告)号：US4484257A
公开(公告)日：1984-11-20
申请号：US397074
申请日：1982-07-12
申请人： Hidehiko Sugimoto
发明人： Hidehiko Sugimoto
IPC分类号： H02M7/48 , H02M7/487 , H02M7/00
CPC分类号： H02M7/487
摘要： The present invention consists in connecting an auxiliary D.C. voltage source to a series-connected assembly constructed of electronic switches, whereby even when the electronic switches in the series-connected assembly have unequal switching rates, any overvoltage is not applied to the electronic switches and any power loss ascribable to the overvoltage is prevented.
摘要翻译：本发明包括将辅助DC电压源连接到由电子开关构成的串联连接组件，由此即使当串联组件中的电子开关具有不相等的开关速率时，任何过电压都不会施加到电子开关和任何能够防止因过电压引起的功率损耗。

34. 发明授权

US4320332A Speed control system for induction motor 失效
标题翻译：感应电机调速系统
公开(公告)号：US4320332A
公开(公告)日：1982-03-16
申请号：US169487
申请日：1980-07-16
申请人： Hidehiko Sugimoto
发明人： Hidehiko Sugimoto
IPC分类号： H02P27/06 , H02P27/04 , H02P5/40
CPC分类号： H02P27/045 , H02P23/08
摘要： An error amplifier is connected to both a tachometer generator for an induction motor and a command speed generator to produce an error signal corresponding to the difference between the actual motor speed and a command motor speed. A current limit generator connected to the tachometer generator generates a current limit signal which is subtracted from a motor current signal from a current sensor for the motor. A multiplier imparts to the resulting difference signal the polarity opposite to that of the error signal as determined by a polarity discriminator. The difference signal is added to the error and actual speed signals by an adder to form a command frequency signal. An inverter controls the motor in response to the command frequency signal.
摘要翻译：误差放大器连接到用于感应电动机的转速计发生器和命令速度发生器，以产生对应于实际电动机速度和指令电动机速度之间的差的误差信号。连接到转速计发生器的电流限制发生器产生电流限制信号，该电流限制信号从用于电动机的电流传感器的电动机电流信号中减去。乘法器将所得到的差分信号赋予与由极性鉴别器确定的误差信号的极性相反的极性。差分信号由加法器加到误差和实际速度信号上以形成指令频率信号。变频器根据指令频率信号控制电机。

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