Driving circuit of ultrasonic motor
    1.
    发明授权
    Driving circuit of ultrasonic motor 失效
    超声波电机驱动电路

    公开(公告)号:US6163100A

    公开(公告)日:2000-12-19

    申请号:US216945

    申请日:1998-12-21

    IPC分类号: H01L41/04 H02N2/14 H02N2/00

    CPC分类号: H02N2/14 H02N2/147

    摘要: A microcomputer outputs a driving frequency signal to an oscillator circuit and the oscillator circuit oscillates at a driving frequency designated by the microcomputer. A switching control circuit outputs switching signals to an A-phase amplifier circuit and to a B-phase amplifier circuit at a predetermined timing. The A-phase amplifier circuit and the B-phase amplifier circuit each convert a DC voltage supplied by a voltage control circuit to an AC voltage and supply the same to two piezoelectric bodies of an ultrasonic motor. Due to the AC voltage being supplied to each of the two piezoelectric bodies, the ultrasonic motor is driven. At the start time of driving the ultrasonic motor, by gradually increasing the voltage level of the DC voltage outputted from the voltage control circuit and also gradually increasing the voltage level of a driving voltage to be supplied to the piezoelectric body of the ultrasonic motor, a stator and a rotor of the ultrasonic motor are gradually separated from each other. Further, in a case in which the voltage has been increased to a predetermined voltage level, the driving frequency is gradually lowered to increase the number of revolutions of the motor, thereby making it possible to lessen the vibration of the ultrasonic motor at the start time of driving. As a result, the generation of an audible sound can be prevented.

    摘要翻译: 微型计算机向振荡电路输出驱动频率信号,并且振荡器电路以由微计算机指定的驱动频率振荡。 开关控制电路以预定的定时将开关信号输出到A相放大器电路和B相放大器电路。 A相放大电路和B相放大电路将由电压控制电路提供的直流电压转换为交流电压,并将其提供给超声波马达的两个压电体。 由于向两个压电体中的每一个供给交流电压,所以驱动超声波马达。 在驱动超声波电动机的开始时,通过逐渐增加从电压控制电路输出的直流电压的电压水平,并且逐渐增加提供给超声波电动机的压电体的驱动电压的电压电平, 定子和超声波马达的转子逐渐分离。 此外,在电压已经增加到预定电压电平的情况下,驱动频率逐渐降低以增加电动机的转数,从而可以在起始时间减小超声波电动机的振动 的驾驶 结果,可以防止产生可听见的声音。

    Driving circuit of a motor
    2.
    发明授权
    Driving circuit of a motor 有权
    电机的驱动电路

    公开(公告)号:US06215223B1

    公开(公告)日:2001-04-10

    申请号:US09217833

    申请日:1998-12-22

    IPC分类号: H02N200

    CPC分类号: H02N2/14 H02N2/163

    摘要: When a motor is driven by a signal transmitted due to a switch turned on, a count value is added. When the motor is stopped, the count value is subtracted. When the count value is an upper limit value, the motor is continuously driven until the switch is changed to an off state. Subsequently, until the count value comes to a lower limit value, the motor is maintained in a stopped state even if the switch of the motor is changed to an on state. For this reason, generation of heat in the motor can be prevented.

    摘要翻译: 当电机由于开关导通而发送的信号驱动时,增加计数值。 当电机停止时,减去计数值。 当计数值为上限值时,马达被持续驱动,直到开关变为关闭状态。 随后,直到计数值达到下限值,即使电动机的开关变为接通状态,电动机也保持在停止状态。 因此,能够防止马达的发热。

    Actuator
    3.
    发明授权
    Actuator 失效
    执行器

    公开(公告)号:US06988909B2

    公开(公告)日:2006-01-24

    申请号:US10816486

    申请日:2004-03-31

    申请人: Satoshi Morizaki

    发明人: Satoshi Morizaki

    IPC分类号: H01R11/20

    CPC分类号: H01R12/675 H01R4/2433

    摘要: An actuator that reduces the number of components, simplifies connection, and lowers costs. The actuator includes a connector body and a cover. The connector body has an input terminal and an output terminal. The cover holds a harness with the connector body. The connector body or the cover includes a cutter that is arranged between the input terminal and the output terminal. The cutter cuts a signal line of the harness into two cut pieces when attaching the connector body and the cover to each other. The input and output terminals each include two contact portions that penetrate through a coating of the signal line of the harness to contact one of the two cut pieces of the signal line when attaching the connector body and the cover to each other.

    摘要翻译: 一个减少部件数量,简化连接并降低成本的执行器。 致动器包括连接器主体和盖。 连接器主体具有输入端子和输出端子。 盖子带有连接器主体的线束。 连接器主体或盖包括设置在输入端子和输出端子之间的切割器。 当将连接器主体和盖子彼此连接时,切割器将线束的信号线切割成两个切割片。 输入和输出端子各自包括穿过线束的信号线的涂层的两个接触部分,以在将连接器主体和盖子彼此附接时接触信号线的两个切割片中的一个。

    Actuator
    4.
    发明申请
    Actuator 审中-公开
    执行器

    公开(公告)号:US20050162014A1

    公开(公告)日:2005-07-28

    申请号:US10810162

    申请日:2004-03-26

    CPC分类号: H04L12/403 H04L2012/40267

    摘要: An actuator having satisfactory responsiveness. The actuator includes an input terminal, an output terminal, a switch connected between the output and input terminals, a driving portion, and a control circuit. When reset, the control circuit sets an initial value and opens the switch to disconnect the input and output terminals from each other. When the control circuit receives a control signal including a predetermined value, the control circuit changes the initial value to the predetermined value, which is used as the address value of the actuator and closes the switch to connect the input and output terminals to each other.

    摘要翻译: 具有令人满意的响应性的致动器。 致动器包括输入端子,输出端子,连接在输出端子与输入端子之间的开关,驱动部分和控制电路。 当复位时,控制电路设置初始值并打开开关,使输入和输出端子彼此断开。 当控制电路接收到包括预定值的控制信号时,控制电路将初始值改变为用作致动器的地址值的预定值,并闭合开关以将输入和输出端子彼此连接。