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    • 6. 发明授权
    • Driver circuit for controlling a piezoelectric actuator in charge mode
    • 用于在充电模式下控制压电致动器的驱动电路
    • US06246152B1
    • 2001-06-12
    • US09441148
    • 1999-11-12
    • Luca FontanellaGiovanni FrattiniGiorgio PedrazziniGiulio Ricotti
    • Luca FontanellaGiovanni FrattiniGiorgio PedrazziniGiulio Ricotti
    • H02N214
    • H01L41/042G11B5/483H03F3/3028
    • 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.
    • 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。
    • 9. 发明授权
    • Switching device
    • 开关装置
    • US06330172B1
    • 2001-12-11
    • US09505343
    • 2000-02-16
    • Luca FontanellaGiovanni FrattiniGiulio Ricotti
    • Luca FontanellaGiovanni FrattiniGiulio Ricotti
    • H02M7122
    • H02M1/38
    • A switching device having a first and a second electronic switch connected in a half-bridge configuration and each having a control terminal for receiving a switching signal alternatively having a turn-on value and a turn-off value for taking the first and second electronic switches to an on state and to an off state, respectively; the switching device includes, for each switch, means for detecting the state of the switch and means for keeping the switching signal at the turn-off value for one of the electronic switches when the detected state of the other electronic switch is the on state.
    • 一种开关装置,具有以半桥结构连接的第一和第二电子开关,每个开关装置具有用于接收开关信号的控制端子,所述控制端子交替地具有导通值和用于接收第一和第二电子开关的关断值 分别处于状态和关闭状态; 对于每个开关,当另一个电子开关的检测状态为接通状态时,开关装置包括用于检测开关状态的装置和用于将开关信号保持在电子开关中的一个的关断值的装置。
    • 10. 发明授权
    • Capacitive high voltage generator
    • 电容式高压发生器
    • US06631081B2
    • 2003-10-07
    • US10032822
    • 2001-10-18
    • Luca Fontanella
    • Luca Fontanella
    • H02M719
    • H02M3/073
    • A capacitive high voltage generator having a first stage and a second stage respectively formed by a first basic block and a second basic block and a third basic block. Each basic block has a timing input, a first supply input, a second supply input and an output terminal and includes: a buffer having a first terminal connected to the first supply input of the corresponding basic block, a second terminal connected to a ground terminal and an input terminal connected to the timing input of the corresponding basic block; a capacitor having a first terminal connected to an output terminal of the corresponding buffer and a second terminal connected, in a non-disconnectable way, to the output terminal of the corresponding basic block; a diode having a first terminal connected to the second supply input and a second terminal connected, in a non-disconnectable way, to the output terminal of the corresponding basic block. The output terminals of the first and second basic blocks are respectively connected to the first supply input and to the second supply input of the third basic block.
    • 一种具有分别由第一基本块和第二基本块和第三基本块形成的第一级和第二级的电容式高压发生器。 每个基本块具有定时输入,第一电源输入,第二电源输入和输出端子,并且包括:缓冲器,其具有连接到对应的基本块的第一电源输入的第一端子,连接到接地端子的第二端子 以及连接到对应的基本块的定时输入的输入端; 电容器,其具有连接到相应缓冲器的输出端子的第一端子和以不可断开的方式连接到相应基本块的输出端子的第二端子; 二极管,其具有连接到第二电源输入的第一端子和以不可断开的方式连接到相应的基本块的输出端子的第二端子。 第一和第二基本块的输出端子分别连接到第三基本块的第一电源输入端和第二电源输入端。