Circuit and method for driving of motor, and cooling device
    5.
    发明专利
    Circuit and method for driving of motor, and cooling device 有权
    电动机驱动和冷却装置的电路和方法

    公开(公告)号:JP2010220462A

    公开(公告)日:2010-09-30

    申请号:JP2010021837

    申请日:2010-02-03

    发明人: MISHIMA TOMOFUMI

    IPC分类号: H02P7/288 H02P1/18 H02P7/29

    CPC分类号: H02P1/18 H02P7/29

    摘要: PROBLEM TO BE SOLVED: To start a motor through a reliable and simple control. SOLUTION: A motor-driving circuit 100 drives a fan motor 4 on receipt of a controlling pulse signal CNT1 pulse-width modulated in accordance with a target number of rotation. A starting pulse-signal generation unit 16 generates the starting pulse signal SP1 of a predetermined duty ratio. A driving unit 10 drives the fan motor 4 through the pulse-width modulation, based on the driving pulse signal DRV1 transmitted from a control unit 14. The control unit 14 starts driving the fan motor 4 while it is kept stopped, at the moment that the duty ratio of the controlling pulse signal CNT1 is transferred from zero to nonzero. Further, the control unit 14 outputs the starting pulse signal SP1 as the driving pulse signal DRV1 for some starting period of time Ts since starting to drive, and outputs the controlling pulse signal CNT1 as the driving pulse signal DRV1 after a lapse of the starting period of time Ts. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:通过可靠和简单的控制启动电机。 解决方案:马达驱动电路100在接收到根据目标转数进行脉宽调制的控制脉冲信号CNT1时驱动风扇马达4。 起动脉冲信号生成部16生成规定的占空比的起动脉冲信号SP1。 驱动单元10基于从控制单元14发送的驱动脉冲信号DRV1通过脉冲宽度调制来驱动风扇电动机4.控制单元14在保持停止的同时开始驱动风扇电动机4, 控制脉冲信号CNT1的占空比从零转移到非零。 此外,控制单元14从开始驱动后,将起动脉冲信号SP1作为驱动脉冲信号DRV1输出一些起动时间Ts,并且在经过起动时间之后输出控制脉冲信号CNT1作为驱动脉冲信号DRV1 的时间Ts。 版权所有(C)2010,JPO&INPIT