会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Motor driving apparatus
    • 电机驱动装置
    • US5973469A
    • 1999-10-26
    • US981033
    • 1998-04-13
    • Haruhiko HiguchiMasakazu IchikawaHiroyuki KiharaTomomi MurakamiHidetaka Tsuchiya
    • Haruhiko HiguchiMasakazu IchikawaHiroyuki KiharaTomomi MurakamiHidetaka Tsuchiya
    • H02P6/20H02P8/02H02P8/08H02P8/00
    • H02P6/20H02P8/02H02P8/08
    • It is an object of this invention to attain reliable starting characteristics and stable rotation performance of a motor in a motor of a phase synchronization driving type. To achieve this object, according to this invention, there is provided a motor driving apparatus having a stepping motor constituted by a stator with at least two poles, a rotor having a permanent magnet with at least two poles, and a driving coil magnetically coupled to the stator, a driving pulse generation means for outputting a driving pulse signal for driving the stepping motor, a driving circuit for supplying a driving current to the driving coil on the basis of the signal from the driving pulse generation means, a voltage detection circuit for detecting a counter electromotive voltage generated upon rotation of the rotor, and a pole position detection means for detecting the pole position of the rotating rotor with respect to the rotor on the basis of a detection signal generated by the voltage detection circuit, the driving pulse generation means controlling the output timing of the driving pulse signal on the basis of the detection signal from the pole position detection means, characterized in that the pole position detection means stops outputting the driving pulse signal on the basis of the detection signal from the voltage detection circuit which is detected during the output period of the driving pulse signal, and outputs a driving pulse signal having a phase opposite to that of the driving pulse signal.
    • PCT No.PCT / JP97 / 01276 Sec。 371日期:1998年4月13日 102(e)日期1998年4月13日PCT 1997年4月11日PCT公布。 公开号WO97 / 38487 日期为1997年10月16日本发明的目的是获得电动机在相位同步驱动型电动机中的可靠起动特性和稳定的旋转性能。 为了达到这个目的,根据本发明,提供了一种马达驱动装置,其具有步进马达,该步进马达由具有至少两个极的定子构成,转子具有至少两个极的永磁体,以及驱动线圈,磁耦合到 定子,驱动脉冲产生装置,用于输出用于驱动步进电机的驱动脉冲信号;驱动电路,用于根据来自驱动脉冲发生装置的信号向驱动线圈提供驱动电流;电压检测电路,用于 检测在转子旋转时产生的反电动势;以及极位置检测装置,用于根据由电压检测电路产生的检测信号来检测旋转转子相对于转子的极位置,驱动脉冲产生 基于来自极位置检测装置的检测信号来控制驱动脉冲信号的输出定时 其特征在于,所述极位置检测装置根据来自所述驱动脉冲信号的输出期间检测出的电压检测电路的检测信号,停止输出驱动脉冲信号,并输出相位相反的驱动脉冲信号 到驱动脉冲信号。
    • 4. 发明授权
    • Watch with dumb alarm
    • 用哑铃报警
    • US5367505A
    • 1994-11-22
    • US25254
    • 1994-04-12
    • Hidetaka TsuchiyaNobuyuki UeharaMasami FukudaMasao Mafune
    • Hidetaka TsuchiyaNobuyuki UeharaMasami FukudaMasao Mafune
    • G04B25/04G04G13/02G04B19/06G04B23/02
    • G04B25/04G04G13/021
    • A watch with a dumb alarm has a time drive region which is electrically drivable and an alarm drive region which is drivable by a mechanical drive source. The alarm drive region has an alarm wheel engaging the hour wheel, an eccentric weight rotatably supported in an eccentric position, an alarm lever for urging the hour wheel toward the alarm wheel, the alarm lever having a distal end engageable with an engaging portion on the eccentric weight, an externally operable member for controlling the eccentric weight to start and stop operating, a spiral spring for rotating the eccentric weight, and a wheel train for transmitting drive forces from the spiral spring. When a preset time to be announced comes, the hour wheel engages the alarm wheel to allow the eccentric weight to start operating, and power of the spiral spring is transmitted through the wheel train to the eccentric weight to rotate the eccentric weight to produce vibrations thereof.
    • 具有哑铃的手表具有电驱动的时间驱动区域和可由机械驱动源驱动的报警驱动区域。 所述报警驱动区域具有接合所述时轮的报警轮,以可偏转的位置可旋转地支撑的偏心轮,用于向所述报警轮推动所述小时轮的报警杆,所述报警杆具有可与所述 偏心重量,用于控制偏心重量以起动和停止操作的外部可操作构件,用于旋转偏心重物的螺旋弹簧和用于传递来自螺旋弹簧的驱动力的轮系。 当预定的时间要公布时,时轮接合报警轮以允许偏心重量开始运转,并且螺旋弹簧的动力通过轮系传递到偏心重块以旋转偏心重物以产生振动 。