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公开(公告)号：US4553640A
公开(公告)日：1985-11-19
申请号：US413820
申请日：1982-09-01
申请人： Hiromi Inaba , Seiya Shima , Takeki Ando , Toshiaki Kurosawa , Yasunori Katayama , Takanobu Hatakeyama , Sadao Hokari
发明人： Hiromi Inaba , Seiya Shima , Takeki Ando , Toshiaki Kurosawa , Yasunori Katayama , Takanobu Hatakeyama , Sadao Hokari
CPC分类号： B66B1/285
摘要： An elevator controller which uses an acceleration command signal that has as its initial value a start shock compensation torque which will offset the unbalance torque caused at the time of starting. From the completion of elevator car acceleration to the start of deceleration, the acceleration command is gradually increased or decreased to control the motor so as to provide a smoother motion of the car. After the inception of the car deceleration a velocity command is issued which decreases with the reducing distance between the car and the destination floor.
摘要翻译： 一种电梯控制器，其使用加速度指令信号，该加速度指令信号具有起动减震补偿转矩作为初始值，该转矩将抵消起动时产生的不平衡转矩。 从电梯轿厢加速完成到减速开始，加速指令逐渐增大或减小，以控制电动机，以提供汽车的平稳运动。 在汽车减速开始之后，发出速度指令，随着轿厢和目的地楼层之间的减小距离而减小。
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公开(公告)号：US4742535A
公开(公告)日：1988-05-03
申请号：US812845
申请日：1985-12-23
摘要： Disclosed is an inverter type X-ray apparatus comprising a DC-DC converter for converting a DC voltage into a different DC voltage, an inverter for inverting an output voltage of the DC-DC converter into an AC voltage, a high voltage transformer for transforming an output voltage of the inverter into a higher voltage, a rectifier for converting an AC output voltage of the transformer into a DC voltage, and an X-ray tube to which an output voltage of the rectifier is applied. In the apparatus, the DC-DC converter includes a reactor, a switching element and a capacitor which are interconnected so that the DC-DC converter can generate an output voltage higher or lower than an input voltage.
摘要翻译： 公开了一种逆变器型X射线装置，包括用于将DC电压转换为不同直流电压的DC-DC转换器，用于将DC-DC转换器的输出电压反相为AC电压的逆变器，用于转换的高压变压器 逆变器的输出电压变为更高的电压，将变压器的交流输出电压转换为直流电压的整流器以及施加整流器的输出电压的X射线管。 在该装置中，DC-DC转换器包括互连的电抗器，开关元件和电容器，使得DC-DC转换器可以产生高于或低于输入电压的输出电压。
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公开(公告)号：US4661757A
公开(公告)日：1987-04-28
申请号：US673749
申请日：1984-11-01
申请人： Sadao Hokari , Takamasa Hori , Katsu Komuro , Takanobu Hatakeyama , Toshiroo Narita , Yasunori Katayama , Noboru Arahori
发明人： Sadao Hokari , Takamasa Hori , Katsu Komuro , Takanobu Hatakeyama , Toshiroo Narita , Yasunori Katayama , Noboru Arahori
CPC分类号： H02P29/0022 , B66B1/30 , H02P3/18 , Y10T307/615
摘要： In a controller for an AC elevator in which the frequency of AC power applied to a driving induction motor is varied by a frequency converter, the output frequency of the frequency converter when the elevator is running at its rated speed is at least as high as the frequency of the AC supply, and the AC supply is applied directly onto the induction motor without any frequency conversion during low-speed running, so that the elevator can be run slowly without using the frequency converter.
摘要翻译： PCT No.PCT / JP84 / 00090 Sec。 371日期1984年11月1日 102（e）1984年11月1日PCT PCT Fils 3月7日，PCT PCT。 公开号WO84 / 03486 日期：1984年9月13日。在用于交流电梯的控制器中，其中施加到驱动感应电动机的交流电力的频率由变频器改变，当电梯以其额定速度运行时，变频器的输出频率 至少与交流电源的频率一样高，并且在低速运行期间将AC电源直接施加到感应电动机上而不进行任何频率转换，使得电梯可以缓慢地运行而不使用变频器。
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公开(公告)号：US4441584A
公开(公告)日：1984-04-10
申请号：US289040
申请日：1981-07-31
申请人： Nobuo Mitsui , Yasuyuki Maeda , Tomiaki Kurihara , Seiya Shima , Takanobu Hatakeyama , Katsu Komuro
发明人： Nobuo Mitsui , Yasuyuki Maeda , Tomiaki Kurihara , Seiya Shima , Takanobu Hatakeyama , Katsu Komuro
摘要： In an AC elevator system employing a three-phase induction motor for driving an elevator car, the primary voltage supplied to the induction motor is controlled to control the motoring torque in the acceleration mode and in the rated-speed running mode, while, in the deceleration mode, a power converter unit supplies AC power of low frequency to the induction motor to apply regenerative braking.
摘要翻译： 在采用用于驱动电梯轿厢的三相感应电动机的交流电梯系统中，控制提供给感应电动机的一次电压，以在加速模式和额定转速行驶模式下控制电动转矩，而在 减速模式下，电源转换器单元向感应电动机提供低频交流电源，以再生制动。
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公开(公告)号：US4387436A
公开(公告)日：1983-06-07
申请号：US208579
申请日：1980-11-20
申请人： Yasunori Katayama , Takanobu Hatakeyama , Seiya Shima , Sadao Hokari , Toshiro Narita , Kenji Yoneda , Kazuhiro Sakata , Tomiaki Kurihara , Toshio Meguro
发明人： Yasunori Katayama , Takanobu Hatakeyama , Seiya Shima , Sadao Hokari , Toshiro Narita , Kenji Yoneda , Kazuhiro Sakata , Tomiaki Kurihara , Toshio Meguro
CPC分类号： B66B1/3492
摘要： A pulse generator is coupled to a car drive motor directly coupled to a sheave, over which a rope suspending an elevator car is passed, and the position of the car is calculated through the counting of pulses produced from the pulse generator. First and second car position detectors for detecting respective first and second car positions are provided within a hatchway, and the number of pulses produced during a period from the actuation of the first car position detector till the actuation of the second car position detector is detected. A count value for calculating the car position is corrected according to the difference between the detected pulse number and a reference pulse number corresponding to the distance between the first and second car position detectors, thereby effecting the compensation for the wear of the sheave and rope to improve the precision of the car position detection.
摘要翻译： 脉冲发生器被耦合到直接联接到滑轮的轿厢驱动电动机，通过该行驶轮胎悬挂电梯轿厢的绳索通过脉冲发生器产生的脉冲的计数来计算轿厢的位置。 检测相应的第一和第二轿厢位置的第一和第二车位检测器设置在舱口内，并且检测在从第一轿厢位置检测器的致动到第二轿厢位置检测器的致动期间产生的脉冲数。 根据检测到的脉冲数与对应于第一和第二轿厢位置检测器之间的距离的参考脉冲数之间的差来校正用于计算轿厢位置的计数值，从而对滑轮和绳索的磨损进行补偿 提高汽车位置检测精度。
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6.发明授权Power source apparatus including a plurality of output current amplifiers connected in parallel and MRI apparatus using the same 失效电源装置包括并联连接的多个输出电流放大器和使用其的MRI装置
公开(公告)号：US5721490A
公开(公告)日：1998-02-24
申请号：US597959
申请日：1996-02-07
IPC分类号： G01R33/385 , G01V3/00
CPC分类号： G01R33/3852
摘要： A power source apparatus distributes a current command value to be supplied to a load to a plurality of output current amplifiers connected in parallel with the load, and each of the output current amplifiers supplies an output current corresponding to the current command value so distributed. This power source apparatus prevents a circulating current between the output current amplifiers by controlling each output current amplifier so that the difference between the output current from each output current amplifier and the distributed current command value becomes zero, or by inserting current limiting devices into the output line of each output current amplifier.
摘要翻译： 电源装置将要提供给负载的电流指令值分配给与负载并联连接的多个输出电流放大器，并且每个输出电流放大器提供与分配的当前指令值相对应的输出电流。 该电源装置通过控制每个输出电流放大器来防止输出电流放大器之间的循环电流，使得来自每个输出电流放大器的输出电流与分布电流指令值之间的差变为零，或者通过将限流装置插入输出 每路输出电流放大器。
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公开(公告)号：US4794506A
公开(公告)日：1988-12-27
申请号：US23239
申请日：1987-03-09
申请人： Hirofumi Hino , Takanobu Hatakeyama
发明人： Hirofumi Hino , Takanobu Hatakeyama
CPC分类号： H02M3/3376 , H05G1/08 , H05G1/20 , H05G1/32 , H05G1/46 , H02M2007/53878 , Y02B70/1433 , Y02B70/1441
摘要： Disclosed is a resonant DC-DC converter which comprises an inverter for converting DC power into AC power, a rectifier connected to the AC output of the inverter through a resonant transformer for rectifying AC output power of the transformer to obtain DC power to be applied to a load, means for determining respective operation phases of a first, a second, a third and a fourth switching elements constituting the inverter in accordance with set signals indicating a voltage and a current to be supplied to the load, and a phase control circuit for controlling the respective operation phases of the first, second, third and fourth switching elements on the basis of an output signal of the phase determining means in a manner so that the first and second switching elements are alternately turned on with a phase difference of 180 degrees with respect to an operation frequency of the inverter, the third and fourth switching elements are alternately turned on with a phase difference of 180 degrees with respect to the operation frequency of the inverter, while varying a phase difference from turn-on of the first switching element to turn-on of the fourth switching element and a phase difference from turn-on of the second switching element to turn-on of the third switching element to thereby control or feed-back control the DC power to be supplied to the load.
摘要翻译： 公开了一种谐振式DC-DC转换器，其包括用于将DC电力转换为AC电力的逆变器，通过谐振变压器连接到逆变器的AC输出的整流器，用于整流变压器的AC输出功率，以获得要施加到 负载，用于根据指示要提供给负载的电压和电流的设定信号来确定构成逆变器的第一，第二，第三和第四开关元件的各个操作相位的装置，以及相位控制电路 基于相位确定装置的输出信号控制第一，第二，第三和第四开关元件的各个操作相位，使得第一和第二开关元件以180度的相位差交替地导通 相对于逆变器的工作频率，第三和第四开关元件以180度的相位差交替地导通 相对于逆变器的工作频率，在将第一开关元件的接通与第四开关元件接通的相位差与第二开关元件的导通时相位差相对变化时， 从而控制或反馈控制要提供给负载的直流电力。
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公开(公告)号：US4768215A
公开(公告)日：1988-08-30
申请号：US863501
申请日：1986-05-15
CPC分类号： H01J35/165 , H05G1/265
摘要： An X-ray generator with current measuring device has an X-ray tube, a power supply unit for feeding high voltage to the X-ray tube, a high voltage cable for connecting the X-ray tube and power supply unit. The high voltage cable is comprised of a core conductor, an insulating layer surrounding the core conductor and a covered shield surrounding the insulating layer and the covered shield is disconnected near one end of the cable connected to the X-ray tube so as to be divided into a major shield portion adjacent to the power supply unit and a minor shield portion adjacent to the X-ray tube. An insulating member is provided for electrically insulating the major and minor shield portions, and a magnetic sensor sensitive to a magnetic field generated by a current flowing through the high voltage cable is positioned around the minor shield portion. The X-ray generator can measure the X-ray tube current accurately and readily under electrical insulation.
摘要翻译： 具有电流测量装置的X射线发生器具有X射线管，用于向X射线管提供高电压的电源单元，用于连接X射线管和电源单元的高压电缆。 高压电缆包括芯导体，围绕芯导体的绝缘层和围绕绝缘层的覆盖屏蔽层，并且覆盖的屏蔽件在连接到X射线管的电缆的一端附近断开，以便被分割 与电源单元相邻的主屏蔽部分和与X射线管相邻的次屏蔽部分。 提供绝缘构件用于电绝缘主要和次要屏蔽部分，并且对流过高压电缆的电流产生的磁场敏感的磁传感器定位在次屏蔽部分周围。 X射线发生器可以在电绝缘下准确，容易地测量X射线管电流。
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公开(公告)号：US4150734A
公开(公告)日：1979-04-24
申请号：US871801
申请日：1978-01-24
CPC分类号： B66B1/3492 , B66B1/285
摘要： An elevator car control apparatus is disclosed in which a three-phase AC tachometer generator is coupled to a motor for driving an elevator car, and the AC output of the tachometer generator is full-wave rectified for use as a speed feedback voltage. A waveform-shaping circuit generates one pulse for each cycle of the output of the AC tachometer generator. A counter counts such pulses after the car has passed a deceleration-initiating point, thereby producing the number of counts proportional to a car running distance after the passage of the deceleration-initiating point. From this number of counts, a deceleration command voltage decreasing progressively in accordance with car positions is obtained by a decoder and a digital-analog converter. During deceleration, the car-drive motor is subjected to feedback control in accordance with the difference between the speed feedback voltage and the deceleration command voltage, thus effecting deceleration control of the elevator car.
摘要翻译： 公开了一种电梯轿厢控制装置，其中三相交流转速计发生器耦合到用于驱动电梯轿厢的电动机，并且转速计发生器的交流输出被全波整流用作速度反馈电压。 波形整形电路为交流转速计发生器的输出的每个周期产生一个脉冲。 在汽车通过减速起始点之后，计数器对这样的脉冲进行计数，从而产生与减速起始点通过之后的轿厢行驶距离成比例的计数。 从该数量的计数，通过解码器和数模转换器获得根据轿厢位置逐渐减小的减速指令电压。 在减速期间，根据速度反馈电压和减速指令电压之间的差异对轿厢驱动电动机进行反馈控制，从而进行电梯轿厢的减速控制。
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公开(公告)号：US4839915A
公开(公告)日：1989-06-13
申请号：US145715
申请日：1988-01-15
CPC分类号： H05G1/32 , H02M3/3376 , H02M7/53871 , H05G1/20
摘要： In an inverter type X-ray apparatus comprising an inverter including a plurality of switching elements operated alternately to generate an AC voltage having a rectangular waveform, a high voltage transformer transforming the AC voltage of rectangular waveform into a high AC voltage, a high voltage rectifier circuit rectifying the high AC voltage into a DC voltage, and an X-ray tube to which the DC voltage is applied as a tube voltage, the switching elements are driven to make chopping operation at a frequency high than the inverter drive frequency, and a pattern signal is generated for gradually increasing the duty cycle of the chopping operation in synchronism with the timing of switching over the switching elements.
摘要翻译： 在一种逆变器型X射线装置中，包括：反相器，包括交替操作的多个开关元件，以产生具有矩形波形的AC电压;将矩形波形的交流电压变换为高交流电压的高压变压器;高压整流器 将高交流电压整流为直流电压，将作为直流电压的X射线管作为管电压进行驱动，驱动开关元件，使其以比逆变器驱动频率高的频率进行斩波动作， 产生模式信号，以便与切换开关元件的切换时序同步地逐渐增加斩波操作的占空比。
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