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    • 1. 发明授权
    • Vibration-type driving device, control apparatus for controlling the driving of the vibration-type driving device, and electronic equipment having the vibration-type driving device and the control apparatus
    • 振动式驱动装置,用于控制振动型驱动装置的驱动的控制装置以及具有振动型驱动装置和控制装置的电子设备
    • US07109639B2
    • 2006-09-19
    • US11180804
    • 2005-07-13
    • Shinji YamamotoNobuyuki Kojima
    • Shinji YamamotoNobuyuki Kojima
    • H02N2/00H02N2/08
    • H02N2/026H02N2/0015H02N2/062H02N2/103H02N2/142
    • A vibration-type driving device comprises a vibration element including a driving member and an electro-mechanical energy conversion element having an electrode and arranged to displace the driving member with a driving signal supplied to the electrode, and a driven element that is kept in contact with the driving member of the vibration element. According to the driving signal supplied to the electrode of the electro-mechanical energy conversion element, the vibration element excites vibrations in two flexural vibration modes in which a direction of generation of a node in one mode is perpendicular to that in the other mode. With the use of the two flexural vibration modes, the natural vibration frequency of the vibration element can be prevented from increasing, and the position of a node occurring in one flexural vibration mode and the position of an antinode occurring in the other flexural vibration mode can be made to coincide with each other, so that the amount of displacement of the driving member can be made large.
    • 一种振动型驱动装置,包括:振动元件,包括驱动构件和具有电极的机电能转换元件,其布置成以提供给电极的驱动信号来移动驱动构件;以及被驱动元件,其保持接触 与振动元件的驱动构件。 根据提供给机电能量转换元件的电极的驱动信号,振动元件以两种弯曲振动模式激发振动,其中一种模式中的节点的产生方向垂直于另一种模式。 通过使用两个弯曲振动模式,可以防止振动元件的固有振动频率增加,并且在一个弯曲振动模式中发生的节点的位置和在另一个弯曲振动模式中发生的波腹的位置可以 彼此重合,从而能够使驱动部件的位移量大。
    • 4. 发明授权
    • Vibration-type driving device, control apparatus for controlling the driving of the vibration-type driving device, and electronic equipment having the vibration-type driving device and the control apparatus
    • 振动式驱动装置,用于控制振动型驱动装置的驱动的控制装置以及具有振动型驱动装置和控制装置的电子设备
    • US07187104B2
    • 2007-03-06
    • US10804343
    • 2004-03-19
    • Shinji YamamotoNobuyuki Kojima
    • Shinji YamamotoNobuyuki Kojima
    • H02N2/00H01L41/04
    • H02N2/026H02N2/0015H02N2/062H02N2/103H02N2/142
    • A vibration-type driving device comprises a vibration element including a driving member and an electro-mechanical energy conversion element having an electrode and arranged to displace the driving member with a driving signal supplied to the electrode, and a driven element that is kept in contact with the driving member of the vibration element. According to the driving signal supplied to the electrode of the electro-mechanical energy conversion element, the vibration element excites vibrations in two flexural vibration modes in which a direction of generation of a node in one mode is perpendicular to that in the other mode. With the use of the two flexural vibration modes, the natural vibration frequency of the vibration element can be prevented from increasing, and the position of a node occurring in one flexural vibration mode and the position of an antinode occurring in the other flexural vibration mode can be made to coincide with each other, so that the amount of displacement of the driving member can be made large.
    • 一种振动型驱动装置,包括:振动元件,包括驱动构件和具有电极的机电能转换元件,其布置成以提供给电极的驱动信号来移动驱动构件;以及被驱动元件,其保持接触 与振动元件的驱动构件。 根据提供给机电能量转换元件的电极的驱动信号,振动元件以两种弯曲振动模式激发振动,其中一种模式中的节点的产生方向垂直于另一种模式。 通过使用两个弯曲振动模式,可以防止振动元件的固有振动频率增加,并且在一个弯曲振动模式中发生的节点的位置和在另一个弯曲振动模式中发生的波腹的位置可以 彼此重合,从而能够使驱动部件的位移量大。
    • 6. 发明授权
    • Driving system for vibrating type actuator and method of driving vibrating type actuator
    • 振动式执行器驱动系统及驱动振动式执行机构的方法
    • US07365474B2
    • 2008-04-29
    • US11411111
    • 2006-04-26
    • Shinji YamamotoNobuyuki Kojima
    • Shinji YamamotoNobuyuki Kojima
    • H01L41/08
    • H02N2/14H02N2/001H02N2/06H02N2/103
    • Provided is a driving system for a vibrating type actuator capable of simplifying a driving circuit. A vibrating body of the vibrating type actuator can generate a first mode and a second mode which are different in a vibration form, in accordance with an alternate current signal to be supplied. An alternate current signal having a frequency close to a resonance frequency in the first mode or the second mode is applied either between an electrode Va and a common electrode Vc or between an electrode Vb and the common electrode Vc of the vibrating body of the vibrating type actuator. One of the electrodes to be supplied with the alternate current signal is selected by a switching element operated based on a signal from a driving direction switch.
    • 提供了一种能够简化驱动电路的振动式致动器的驱动系统。 振动型致动器的振动体可以根据要供给的交流信号产生振动形式不同的第一模式和第二模式。 在第一模式或第二模式中具有接近谐振频率的频率的交替电流信号被施加在电极Va和公共电极Vc之间,或者施加在振动型振动体的电极Vb和公共电极Vc之间 执行器。 通过基于来自驱动方向开关的信号操作的开关元件来选择要提供交流信号的电极之一。