公开(公告)号：US06466462B2

公开(公告)日：2002-10-15

申请号：US10011456

申请日：2001-10-30

申请人： Tomohiro Nishiyama ,  Yoshinao Naito ,  Koji Takada ,  Masuo Hanawaka

发明人： Tomohiro Nishiyama ,  Yoshinao Naito ,  Koji Takada ,  Masuo Hanawaka

IPC分类号： H02M3335

CPC分类号： H02M3/3385 ,  H02M3/33569

摘要： A DC/DC converter having a control circuit to reduce losses at light load, wherein a first control device turns ON and OFF power to the primary winding of the transformer of the DC/DC converter according to the difference between the output voltage of the DC/DC converter and the desired output voltage, and a second control device turns ON a switching device of a clamping circuit connected to the primary winding for a desired length of time after the first control device turns OFF the power to the primary winding.

摘要翻译： 一种DC / DC转换器，其具有用于减轻轻负载时的损耗的控制电路，其中，第一控制装置根据DC / DC转换器的输出电压之间的差异，对DC / DC转换器的变压器的初级绕组接通和断电 / DC转换器和期望的输出电压，并且第二控制装置在第一控制装置关闭到初级绕组的功率之后，将连接到初级绕组的钳位电路的开关装置导通期望的时间长度。

公开(公告)号：US4542452A

公开(公告)日：1985-09-17

申请号：US605778

申请日：1984-05-01

申请人： Yoshio Fukai ,  Masato Yamamoto ,  Masuo Hanawaka

发明人： Yoshio Fukai ,  Masato Yamamoto ,  Masuo Hanawaka

IPC分类号： G05B11/01 ,  G05B15/02 ,  G05B19/05 ,  G05B19/02

CPC分类号： G05B19/056 ,  G05B2219/11101 ,  G05B2219/1127 ,  G05B2219/1161 ,  G05B2219/13002 ,  G05B2219/13006 ,  G05B2219/13013 ,  G05B2219/13029 ,  G05B2219/13095 ,  G05B2219/13142 ,  G05B2219/13171 ,  G05B2219/14005 ,  G05B2219/14054 ,  G05B2219/15039 ,  G05B2219/15048

摘要： A programmable controller is provided with a controller body including a microprocessor having a ROM for storing user programs connected with a socket thereto. A programmer which is connected by a connector to a data bus or the controller body has a means to switch to a program mode to write a user program in a RAM by operating keys, and a test run mode to execute the user program written in RAM on the controller body, and a means to copy the user program written in RAM of the programmer to said ROM. The user program stored in ROM which is inserted in said socket is executed when the programmer is isolated from the controller body. The system program of the controller body includes a basic control function program for executing a single loop control, a cascade control function program for executing the cascade control and a selective control function program for the selective control, so that the control operation function is decided by selecting one of said control operation functions programs by a single instruction of the user programs.

摘要翻译： 可编程控制器设置有控制器主体，其包括具有用于存储与其插座相连接的用户程序的ROM的微处理器。 通过连接器连接到数据总线或控制器主体的编程器具有切换到通过操作键将用户程序写入RAM的程序模式的装置，以及用于执行写入RAM的用户程序的测试运行模式 以及将编程器的RAM中写入的用户程序复制到所述ROM的装置。 当编程器与控制器主体隔离时，执行存储在插入到所述插槽中的ROM中的用户程序。 控制器主体的系统程序包括用于执行单回路控制的基本控制功能程序，用于执行级联控制的级联控制功能程序和用于选择性控制的选择控制功能程序，使得控制操作功能由 通过用户程序的单个指令来选择所述控制操作功能程序之一。

公开(公告)号：US6023178A

公开(公告)日：2000-02-08

申请号：US50583

申请日：1998-03-30

申请人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Ooe ,  Iwao Nakanishi ,  Masuo Hanawaka

发明人： Masaki Shioya ,  Hideaki Matsumura ,  Takumi Ooe ,  Iwao Nakanishi ,  Masuo Hanawaka

IPC分类号： H02M3/335 ,  H03K3/017

CPC分类号： H02M3/33523

摘要： A pulse width control IC circuit that greatly reduces price, increases packaging density,and improves reliability for switching power supply units, wherein the IC circuit is on a single chip and includes a main converter control section that controls the ON and OFF actions of a main switch outside the IC, an output MOSFET, and an auxiliary converter control section that controls the ON and OFF actions of the output MOSFET.

摘要翻译： 一种脉冲宽度控制IC电路，其大大降低了价格，提高了封装密度，并提高了开关电源单元的可靠性，其中IC电路在单个芯片上，并且包括主转换器控制部分，其控制主电源的ON和OFF动作 在IC外部切换，输出MOSFET和辅助转换器控制部分，用于控制输出MOSFET的ON和OFF动作。

公开(公告)号：US5497311A

公开(公告)日：1996-03-05

申请号：US394874

申请日：1995-02-27

申请人： Masuo Hanawaka

发明人： Masuo Hanawaka

IPC分类号： H02M3/28 ,  H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A switching power source of a voltage resonant type having a circuit for detecting the lowest point of voltage applied to both ends of a switching element, a time signal generating circuit which is activated concurrently with the turning ON of the switching element to output a predetermined time signal, and a circuit for inhibiting the turning ON of the switching element based on the lowest point detection signal, while a time signal is outputted from the time signal generating circuit.

摘要翻译： 一种电压谐振型的开关电源，具有用于检测施加到开关元件的两端的最低电压点的电路，与开关元件的导通同时激活的时间信号发生电路，以输出预定时间 信号，以及基于最低点检测信号抑制开关元件导通的电路，同时从时间信号发生电路输出时间信号。

公开(公告)号：US5065301A

公开(公告)日：1991-11-12

申请号：US548010

申请日：1990-07-05

申请人： Masaki Shioya ,  Masuo Hanawaka

发明人： Masaki Shioya ,  Masuo Hanawaka

IPC分类号： H02M3/337

CPC分类号： H02M3/3376

摘要： A switching power supply for controlling an output voltage to a constant value with respect to fluctuations in input or in load, wherein are provided a DC power supply; two dividing capacitors connected in series to both ends of the DC power supply; two semiconductor switches connected in series to both ends of the DC power supply; a transformer having a primary winding, one end of which is connected to a connecting point of the two dividing capacitors; and a T type circuit comprising two inductors connected in series between the connecting point of the two semiconductor switches and the other end of the primary winding; and a capacitor connected between the connecting point of the two inductors and the other end of the primary winding. The control characteristics of the switching power supply are improved by reducing the dependency of the output voltage on fluctuations in the load.

公开(公告)号：US4832487A

公开(公告)日：1989-05-23

申请号：US100190

申请日：1987-09-23

申请人： Kenta Mikuriya ,  Masuo Hanawaka ,  Akira Ohya ,  Hideo Hirukawa ,  Shoji Uehara ,  Kenichi Yamakawa

发明人： Kenta Mikuriya ,  Masuo Hanawaka ,  Akira Ohya ,  Hideo Hirukawa ,  Shoji Uehara ,  Kenichi Yamakawa

IPC分类号： G01M11/00 ,  G01N21/88 ,  G01N21/93 ,  G01N21/95 ,  G11B7/0037 ,  G11B7/26 ,  G11B27/36 ,  G11B33/10

CPC分类号： G11B33/10 ,  G01M11/00 ,  G01N21/88 ,  G01N21/9506 ,  G11B27/36 ,  G11B7/00375 ,  G01N2021/8874 ,  G01N2021/8896 ,  G01N2201/1045

摘要： A test system for optical disks, comprising a spindle motor for bearing and rotating an optical disk at a constant speed; a measuring head, comprising focus servor and tracking servo mechanisms for causing the focal point of a laser beam irradiating the optical disk to follow the guide groove of the disk, for generating an output signal proportional to the intensity of the reflected beam coming from the optical disk; a feed mechanism for moving the measuring head in a radial direction of the optical disk; a control circuit for controlling the operations of the spindle motor, the focus servo and tracking servo mechanism of the measuring head, and the feed mechanism; a measurer for performing desired measurements in response to the output signal from the measuring head; and a computer for commanding the control circuit and the measurer and for processing the measured data of the measurer, whereby all the measurements are accomplished with the guide groove of the disk being under the focus and tracking servos.

摘要翻译： 一种用于光盘的测试系统，包括用于以恒定速度轴承和旋转光盘的主轴电机; 测量头，包括聚焦伺服器和跟踪伺服机构，用于使照射光盘的激光束的焦点跟随盘的引导槽，以产生与来自光学器件的反射光束的强度成比例的输出信号 磁盘 用于沿着光盘的径向方向移动测量头的进给机构; 用于控制主轴电动机的操作的控制电路，测量头的聚焦伺服和跟踪伺服机构以及进给机构; 用于响应于来自测量头的输出信号执行所需测量的测量器; 以及用于命令控制电路和测量器并且用于处理测量器的测量数据的计算机，由此所有测量都是通过盘的引导槽处于聚焦和跟踪伺服下进行的。