公开(公告)号：US4878163A

公开(公告)日：1989-10-31

申请号：US201755

申请日：1988-06-03

申请人： Ikuo Yamato ,  Norikazu Tokunaga ,  Yasuo Matsuda ,  Hisao Amano

发明人： Ikuo Yamato ,  Norikazu Tokunaga ,  Yasuo Matsuda ,  Hisao Amano

IPC分类号： H02M7/48

CPC分类号： H02M7/4807

摘要： In a power conversion system, a DC voltage of a DC power supply is converted into a predetermined high-frequency voltage by an inverter, and a high-frequency low voltage generated from the inverter is converted into a high-frequency high voltage by a transformer. A high-frequency high voltage generated from a secondary winding of the transformer is converted into a predetermined low-frequency voltage by a frequency changing circuit. The commutating operation of the frequency changing circuit is performed by a control circuit in response to the output current of the frequency changing circuit and in synchronism with the starting time of the short-circuiting prevention period of the inverter. As a result, the converted output of the power conversion system is prevented from decreasing.

公开(公告)号：US4866589A

公开(公告)日：1989-09-12

申请号：US178654

申请日：1988-04-07

申请人： Masayoshi Satoo ,  Norikazu Tokunaga ,  Hisao Amano ,  Teruaki Odaka ,  Yasuo Matsuda

发明人： Masayoshi Satoo ,  Norikazu Tokunaga ,  Hisao Amano ,  Teruaki Odaka ,  Yasuo Matsuda

IPC分类号： H02M3/335 ,  H02M7/217 ,  H05B6/66

CPC分类号： H05B6/685 ,  H02M3/33546 ,  H02M7/217 ,  H05B6/683 ,  Y02B70/1433 ,  Y02B70/1441

摘要： In a voltage resonance type switching power source apparatus, which has a step-up transformer, a resonance capacitor connected in series with a primary winding of the transformer, and a transistor connected in parallel with the capacitor to cause a resonant oscillation current by the on-off operation thereof, an on signal of the transistor is produced in synchronism with a second signal, which is obtained by delaying a first signal depending on a voltage induced in a detecting winding provided in the transformer by a predetermined delay time.

摘要翻译： 在具有升压变压器的电压谐振型开关电源装置中，与变压器的初级绕组串联连接的谐振电容器和与电容器并联连接的晶体管，以使谐振振荡电流由on 与第二信号同步地产生晶体管的导通信号，该第二信号是通过将设在变压器中的检测绕组中感应出的电压延迟第一信号预定的延迟时间来获得的。

公开(公告)号：US4841427A

公开(公告)日：1989-06-20

申请号：US213134

申请日：1988-06-29

申请人： Hideki Miyazaki ,  Kenichi Onda ,  Yasuo Matsuda

发明人： Hideki Miyazaki ,  Kenichi Onda ,  Yasuo Matsuda

IPC分类号： H02M3/07

CPC分类号： H02M3/07 ,  H02M2001/009

摘要： A power supply circuit comprises first charge storing means, second and third charge storing means supplying their charged voltages so as to be used as sources of predetermined voltages applied to associated loads respectively, switch means capable of selectively establishing at least a first mode and a second mode so that, in the first mode, the first and second charge storing means are connected in series with a d.c. power source to be charged by a power supply voltage, while, in the second mode, the first charge storing means is electrically isolated from the d.c. power source and the second charge storing means, and the third charge storing means is connected to the first charge storing means in a closed circuit to be charged by the charges stored in the first charge storing means, and a drive circuit driving the switch means so that the switch means repeats an operation cycle including at least the first mode and the second mode executed in that order.

公开(公告)号：US4664474A

公开(公告)日：1987-05-12

申请号：US606096

申请日：1984-05-02

申请人： Gotaro Tanaka ,  Kunio Fujiwara ,  Yasuo Matsuda

发明人： Gotaro Tanaka ,  Kunio Fujiwara ,  Yasuo Matsuda

IPC分类号： C03B23/047 ,  C03B37/012 ,  C03B37/014 ,  C03C3/06 ,  C03C13/04 ,  G02B6/028 ,  G02B6/22

CPC分类号： G02B6/03627 ,  C03B23/047 ,  C03B37/01214 ,  C03B37/014 ,  C03C13/045 ,  G02B6/0281 ,  C03B2201/12 ,  C03B2203/22 ,  C03B2203/23

摘要： An optical fiber comprising core glass having therearound a cladding comprising fluorine-containing quartz glass and a process for producing the same are disclosed. Said cladding is composed of an inner portion having a prescribed thickness and a constant fluorine content through its thickness and an outer portion having its fluorine content being gradually decreased in a radial direction so that its outermost surface has a fluorine content of about 0.7% by weight or less relative to SiO.sub.2.

摘要翻译： 公开了一种包括具有包含含氟石英玻璃的包层的芯玻璃的光纤及其制造方法。 所述包层由具有规定厚度的内部部分和通过其厚度具有恒定的氟含量构成，其外部部分的氟含量在径向上逐渐减小，使得其最外表面的氟含量为约0.7重量％ 或更少。

公开(公告)号：US4611158A

公开(公告)日：1986-09-09

申请号：US583696

申请日：1984-02-27

申请人： Hiroshi Nagase ,  Yasuo Matsuda ,  Hisakazu Ninomiya

发明人： Hiroshi Nagase ,  Yasuo Matsuda ,  Hisakazu Ninomiya

IPC分类号： H02M7/527 ,  H02P5/40

CPC分类号： H02M7/527 ,  H02P21/00

摘要： An AC motor such as an induction motor or a synchronous motor is driven by a PWM inverter. Turn-on of the PWM inverter is controlled by PWM pulse signals obtained as a result of comparison between voltage command signals (a modulation signal) and a carrier wave signal. The voltage command signals are obtained as a function of errors between current command signals and detected current signals. Ripples included in the voltage command signals are so suppressed as to be decreased as the rotation speed of the AC motor becomes lower. By so suppressing the ripples, the level of noise generated from the motor can be reduced especially when the motor operates in a low-speed rotation range.

摘要翻译： 诸如感应电动机或同步电动机的AC电动机由PWM逆变器驱动。 PWM逆变器的导通由作为电压指令信号（调制信号）和载波信号之间的比较的结果获得的PWM脉冲信号来控制。 根据电流指令信号和检测到的电流信号之间的误差，得到电压指令信号。 包含在电压指令信号中的波纹被抑制为随着AC电动机的转速变低而减小。 通过这样抑制波纹，特别是当电动机在低速旋转范围内工作时，可以降低从电动机产生的噪音水平。

公开(公告)号：US4599685A

公开(公告)日：1986-07-08

申请号：US694668

申请日：1985-01-24

申请人： Mitsuyuki Hombu ,  Shigeta Ueda ,  Katsunori Suzuki ,  Yasuo Matsuda

发明人： Mitsuyuki Hombu ,  Shigeta Ueda ,  Katsunori Suzuki ,  Yasuo Matsuda

IPC分类号： H02M1/084 ,  H02M7/06 ,  H02M7/155 ,  H02M7/162 ,  H02M1/12

CPC分类号： H02M7/155 ,  H02M1/0845 ,  H02M7/1626

摘要： Disclosed is a control circuit for a power converter apparatus using self-extinction devices as switching devices, in which turn on and turn off operations of the self-extinction devices are controlled by gate pulses which have been subject to pulse width modulation with a pulse train having a pulse width which is sinusoidally varied, and, at the same time, the self-extinction devices in same phase are made conductive in a predetermined period corresponding to an output voltage reference value to make an output of the power converter apparatus be in a shorted state in the sense of DC current to thereby control the output of the power converter apparatus.

摘要翻译： 公开了一种使用自消光装置作为开关装置的功率转换装置的控制电路，其中自消除装置的导通和关断操作由已经经过脉冲串脉冲宽度调制的栅极脉冲控制 具有正弦变化的脉冲宽度，同时相同相位的自消光装置在对应于输出电压基准值的预定周期内导通，使得功率转换装置的输出为 在DC电流的意义上的短路状态，从而控制电力转换装置的输出。

公开(公告)号：US4549259A

公开(公告)日：1985-10-22

申请号：US504436

申请日：1983-06-15

申请人： Shigeta Ueda ,  Mitsuyuki Hombu ,  Yasuo Matsuda

发明人： Shigeta Ueda ,  Mitsuyuki Hombu ,  Yasuo Matsuda

IPC分类号： H02M1/084 ,  H02M7/162 ,  H02M7/48 ,  H02M7/515

CPC分类号： H02M1/084 ,  H02M7/1623

摘要： A gate control circuit for current-type inverter apparatus having an inverter formed of self-extinction devices connected in a bridge form, comprises a logic circuit, pulse stretchers and gate amplifiers. When a frequency command signal is applied to the logic circuit, the logic circuit generates pulse signals for turning on or off the self-extinction devices, and the pulse signals are delayed for predetermined time in their trailing edges in response to the leading edges of the signals by the pulse stretchers so as to be extended, are amplified by the gate amplifiers, and then are supplied to the gates of the self-extinction devices.

摘要翻译： 一种用于电流型逆变器装置的栅极控制电路，具有由桥接形式连接的自消除装置形成的反相器，包括逻辑电路，脉冲展宽器和栅极放大器。 当频率指令信号被施加到逻辑电路时，逻辑电路产生用于接通或断开自消光器件的脉冲信号，并且脉冲信号在它们的后沿响应于前沿的延迟预定时间 通过脉冲展开器进行扩展的信号由栅极放大器放大，然后被提供给自消光器件的栅极。

公开(公告)号：US4549258A

公开(公告)日：1985-10-22

申请号：US471704

申请日：1983-03-03

申请人： Mitsuyuki Honbu ,  Yasuo Matsuda ,  Katsunori Suzuki ,  Yoshiki Kajita

发明人： Mitsuyuki Honbu ,  Yasuo Matsuda ,  Katsunori Suzuki ,  Yoshiki Kajita

IPC分类号： H02M7/493 ,  H02M7/515

CPC分类号： H02M7/493 ,  H02M7/497

摘要： Herein disclosed is an inverter device which includes two or more groups of unit switching circuits connected in parallel with a d.c. power source and each having gate turn-off thyristors connected in series with each other. Further inclusive are current balancing reactors, which are respectively connected between the series nodes of the gate turn-off thyristors of the respective groups, and a.c. output terminals respectively leading out from intermediate points of the aforementioned reactors.

摘要翻译： 这里公开了一种逆变器装置，其包括与直流电路并联连接的两组或多组单位开关电路。 电源，并且每个具有彼此串联连接的栅极截止晶闸管。 还包括电流平衡电抗器，它们分别连接在相应组的栅极截止晶闸管的串联节点之间，以及a.c. 输出端子分别从上述反应器的中间点引出。

公开(公告)号：US4419615A

公开(公告)日：1983-12-06

申请号：US319268

申请日：1981-11-09

申请人： Nobuyoshi Muto ,  Keijiro Sakai ,  Yasuo Matsuda

发明人： Nobuyoshi Muto ,  Keijiro Sakai ,  Yasuo Matsuda

IPC分类号： H02P25/04 ,  H02M7/48 ,  H02M7/529 ,  H02P23/00 ,  H02P27/08 ,  H02P5/40

CPC分类号： H02P27/08 ,  H02M7/529 ,  H02P23/0077 ,  H02P27/047

摘要： An amplitude ratio K.sub.H of a specific level of a modulating wave and a crest value of a carrier wave is introduced into control of a pulse width modulated inverter, and a desired pulse width modulating signal is calculated by a microcomputer, using the amplitude ratio K.sub.H as a control variable.

摘要翻译： 将调制波的特定电平和载波的波峰值的振​​幅比KH引入到脉宽调制反相器的控制中，并且通过微计算机使用振幅比KH作为计算所需的脉宽调制信号 一个控制变量。

公开(公告)号：US4188663A

公开(公告)日：1980-02-12

申请号：US877982

申请日：1978-02-15

申请人： Tadashi Okawa ,  Mitsuyuki Honbu ,  Yasuo Matsuda

发明人： Tadashi Okawa ,  Mitsuyuki Honbu ,  Yasuo Matsuda

IPC分类号： H02H3/24 ,  H02H7/12 ,  H02M5/45 ,  H02M7/515 ,  H02M7/00

CPC分类号： H02M5/4505 ,  H02H3/24 ,  H02H7/12

摘要： A current source inverter having a converter for changing alternating current into direct current, an inverter for changing the d.c. output of the converter into alternating current, and a reactor interposed between the converter and the inverter comprises power failure detecting means for detecting the power failure of the a.c. input of the converter. The power failure detecting means is constructed of square wave generator circuits which generate square waves when voltages in respective polarities of respective phases of the a.c. input exist, an adder which adds the outputs of said square wave generator circuits, and a comparator which compares an output of said adder with a predetermined value and which provides an output when the adder output is below the predetermined value. Both terminals of the reactor of the current source inverter are substantially short-circuited by the output of said power failure detecting means, thereby to prevent occurrence of an overvoltage at the time of the power failure of the a.c. input of the converter.

摘要翻译： 一种电流源逆变器，具有用于将交流电变换成直流电的转换器，用于改变直流电的逆变器。 所述转换器输出为交流电，并且置于所述转换器和所述逆变器之间的电抗器包括用于检测所述变换器与所述逆变器的电源故障的电力故障检测装置。 转换器的输入。 电源故障检测装置由方波发生器电路构成，当电流处于各个相位的相应极性时，产生方波。 输入存在，加法器，其将所述方波发生器电路的输出相加，比较器将所述加法器的输出与预定值进行比较，并且当加法器输出低于预定值时提供输出。 电流源逆变器的电抗器的两端都由所述电源故障检测装置的输出端短路，从而防止在交流电源断电时发生过电压。 转换器的输入。