BACKUP POWER MODULE, AND BACKUP POWER UNIT, AND COMPUTER

    公开(公告)号:JP2001298875A

    公开(公告)日:2001-10-26

    申请号:JP2000116434

    申请日:2000-04-18

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To enhance the life of a battery for backing up AC input. SOLUTION: An ON signal (SW-ON) for commanding power on is supplied to a terminal 52, the output (Q) of flip flop circuits FF64 and FF66 comes to high level(H), a signal (AC-ON/OFF) is outputted to PC, and system starting processing is started with the power supply by commercial power source. An OFF signal (SW-OFF) for commanding power OFF is supplied to a terminal 54, and the output of FF64 comes to low level(L), but the output of the FF circuit 66 keeps H until a shut down signal (shutdown COMP) is inputted from PC, so it is never switched over to the power supply of battery. In case of power failure, the signal (line-on) becomes L, so the output of an AND circuit 70 becomes H, and it is switched over to the power supply of battery until the power break treatment is finished.

    Pulse control method using multiplier and system therefor
    2.
    发明专利
    Pulse control method using multiplier and system therefor 失效
    使用多路复用器及其系统的脉冲控制方法

    公开(公告)号:JPH11282517A

    公开(公告)日:1999-10-15

    申请号:JP6163598

    申请日:1998-03-12

    CPC classification number: G05B19/4103 Y02P90/265

    Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling an actuator driven by a pulse on a multi-dimensional coordinate. SOLUTION: In this control method, a cutting tool connected with the actuator of a machine tool is controlled on a designated path and at a designated speed by controlling the output pulse of a multiplier. A command for instructing the data of the coordinates of plural points including an A point and a B point on the designated path and a designated speed F and the kind of interpolation is received. Then, the A and B points are interpolated with a straight line, and the interpolated straight line is divided into fine length ΔL and fine length ΔLa corresponding to a fine time ΔT. Either a first control signal for holding the designated speed F corresponding to the fine length ΔL or a second control signal for holding the designated speed F corresponding to the fine length ΔLa is transmitted to a pulse oscillator for supplying a pulse to a multiplier, and the ΔT is changed. Thus, when a cutting tool moves to either ΔL or ΔLa part, the designated speed F can be maintained by properly selecting the control signal.

    Abstract translation: 要解决的问题:提供一种用于控制由多维坐标上的脉冲驱动的致动器的方法。 解决方案:在该控制方法中,通过控制乘法器的输出脉冲,将与机床的致动器连接的切削刀具以指定的路径以指定的速度进行控制。 接收用于指示包括指定路径上的A点和B点以及指定速度F的多个点的坐标数据和插值种类的命令。 然后,用直线插入A点和B点,并将内插的直线分成与精细时间ΔT对应的细长度ΔL和细长ΔLa。 将用于保持与精细长度ΔL对应的指定速度F的第一控制信号或用于保持与精细长度ΔLa相对应的指定速度F的第二控制信号被发送到用于向乘法器提供脉冲的脉冲振荡器, ΔT变化。 因此,当切削刀具移动到ΔL或ΔLa部分时,可以通过适当地选择控制信号来保持指定速度F.

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