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1.发明授权公开(公告)号：US06246152B1
公开(公告)日：2001-06-12
申请号：US09441148
申请日：1999-11-12
IPC分类号： H02N214
CPC分类号： H01L41/042 , G11B5/483 , H03F3/3028
摘要： A driver circuit for controlling a piezoelectric actuator in a charge mode includes an amplifier having a first input terminal for receiving a control voltage, a second input terminal, and a main final stage with a main output terminal connected to the piezoelectric actuator. The amplifier also includes an additional final stage with an additional output terminal connected to the second input terminal. The main final stage and the additional final stage are connected in parallel with one another so that a current which passes through the main output terminal is proportional in accordance with a predefined factor to a current which passes through the additional output terminal. The driver circuit includes a device having a constant capacitance connected to the second input terminal so that an electrical charge transferred to the piezoelectric actuator is correlated with the control voltage in accordance with the predefined factor and the capacitance.
摘要翻译： 用于控制充电模式中的压电致动器的驱动器电路包括具有用于接收控制电压的第一输入端子，第二输入端子以及连接到压电致动器的主输出端子的主最终级的放大器。 放大器还包括附加的最终级，附加的输出端连接到第二输入端。 主要的最后级和额外的最后级彼此并联连接，使得通过主输出端的电流根据预定义的因子成比例，该电流通过附加的输出端。 驱动器电路包括具有连接到第二输入端子的恒定电容的装置，使得转移到压电致动器的电荷根据预定系数和电容与控制电压相关。
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公开(公告)号：US06288473B1
公开(公告)日：2001-09-11
申请号：US09540633
申请日：2000-03-31
申请人： Anthony Mittas
发明人： Anthony Mittas
IPC分类号： H02N214
摘要： A piezoelectric motor has peak performance at a specific frequency f1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f1−&Dgr;x to f1+&Dgr;y.
摘要翻译： 压电电动机在特定频率f1处具有可在频率范围内变化的峰值性能。 公开了用于在没有反馈的情况下以最高性能操作这种电动机的驱动系统。 驱动系统由电机和连接到电机电源的交流电源组成，交流电源在f1-DELTAx到f1 + DELTAY的范围内重复产生频率。
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