Energy harvesting circuit
    1.
    发明申请
    Energy harvesting circuit 有权
    能量收集电路

    公开(公告)号:US20050104553A1

    公开(公告)日:2005-05-19

    申请号:US10967833

    申请日:2004-10-18

    IPC分类号: H01M10/44 H02N20060101

    摘要: A station having a means for receipt of ambient energy from the environment and energizing power storage devices of objects of interest comprising one or more antennae and circuitry for converting said ambient energy into DC power for energizing said power storage devices. The circuitry for converting the ambient energy into DC power may include a rectifier/charge pump. The antenna of the station is tuned to maximize DC energy at the output of the rectifier/charge pump. The station can be used to energize power storage devices including capacitors and batteries that are used in electronic devices, such as cell phones, cameras, PDAs. Various antenna constructions may be employed.

    摘要翻译: 一种具有用于从环境接收环境能量并且激励感兴趣的物体的电力存储装置的装置的站,包括用于将所述环境能量转换成用于激励所述蓄电装置的DC电力的一个或多个天线和电路。 用于将环境能量转换为直流电力的电路可以包括整流器/电荷泵。 电台的天线被调整以使整流器/电荷泵输出端的DC能量最大化。 该电台可用于对诸如手机,相机,PDA之类的电子设备中使用的电容器和电池进行通电。 可以采用各种天线结构。

    Driving ciruit for piezoelectric motor
    2.
    发明申请
    Driving ciruit for piezoelectric motor 有权
    驱动电动压电马达

    公开(公告)号:US20050280332A1

    公开(公告)日:2005-12-22

    申请号:US11150833

    申请日:2005-06-10

    申请人: Mikko Ollila

    发明人: Mikko Ollila

    摘要: In a method and a device according to the present invention, two piezo-elements of a piezo-electric actuator are driven with two voltages having a mutual phase difference. One of said piezo-elements is charged by a capacitive voltage step-up means to a voltage exceeding an available power supply voltage. A capacitor is coupled to the piezo-element, which divides the voltage of the piezo-element and simultaneously transfers part of the energy stored in the piezo-element to said capacitor. A part of the energy transferred to said capacitor is later transferred back to said piezo-element, providing an energy-saving feature. The second piezo-element is driven in a similar way providing the required phase difference. In a further embodiment, the waveforms of the two driving signals are corrected using balancing capacitors.

    摘要翻译: 在根据本发明的方法和装置中,压电致动器的两个压电元件由具有相互相位差的两个电压驱动。 所述压电元件之一由电容式升压装置充电至超过可用电源电压的电压。 电容器耦合到压电元件,其分压压电元件的电压并同时将存储在压电元件中的能量的一部分转移到所述电容器。 转移到所述电容器的能量的一部分随后被传送回所述压电元件,从而提供节能特征。 以类似的方式驱动第二压电元件提供所需的相位差。 在另一实施例中,使用平衡电容器校正两个驱动信号的波形。

    Energy saving driving circuit for piezoelectric motor
    4.
    发明申请
    Energy saving driving circuit for piezoelectric motor 有权
    压电电机节能驱动电路

    公开(公告)号:US20050285477A1

    公开(公告)日:2005-12-29

    申请号:US11150835

    申请日:2005-06-10

    申请人: Mikko Ollila

    发明人: Mikko Ollila

    摘要: In a method and a device according to the present invention, two piezo-elements are driven with two voltages having a phase difference. One of the piezo-elements is charged by an inductive step-up means to a voltage exceeding an available power supply voltage. Subsequently charge, i.e. energy is transferred from the one piezo-element to the other piezo-element by an inductive element. The same inductive element is used in an inductive step-up means and in the transfer of the charge between the two piezo-elements.

    摘要翻译: 在根据本发明的方法和装置中,两个压电元件由具有相位差的两个电压驱动。 其中一个压电元件由感应升压装置充电到超过可用电源电压的电压。 随后的电荷,即能量通过电感元件从一个压电元件传递到另一个压电元件。 在感应升压装置中以及两个压电元件之间的电荷传输中使用相同的电感元件。