RESONANT-RECOVERY POWER REDUCTION TECHNIQUES FOR PULSE GENERATION
    1.
    发明申请
    RESONANT-RECOVERY POWER REDUCTION TECHNIQUES FOR PULSE GENERATION 有权
    用于脉冲发生的谐振恢复功率降低技术

    公开(公告)号:US20150137860A1

    公开(公告)日:2015-05-21

    申请号:US14547705

    申请日:2014-11-19

    Applicant: Apple Inc.

    Abstract: The disclosed embodiments provide a circuit for driving a capacitive load. The circuit includes a first inductor with an input terminal and a load terminal, wherein the load terminal is coupled to the capacitive load. The circuit also includes four or more switching devices. The switching devices may hold a voltage on the load terminal at zero volts. Next, the switching devices may charge the capacitive load through the first inductor until the voltage on the load terminal reaches a first input voltage supplied by a voltage source. The switching devices may then hold the voltage on the load terminal at the first input voltage. Finally, the switching devices may discharge the capacitive load through the first inductor until the voltage on the load terminal reaches zero volts.

    Abstract translation: 所公开的实施例提供用于驱动电容性负载的电路。 电路包括具有输入端子和负载端子的第一电感器,其中负载端子耦合到电容性负载。 该电路还包括四个或更多个开关装置。 开关器件可以在负载端子上保持零伏特的电压。 接下来,开关器件可以通过第一电感器对容性负载充电,直到负载端子上的电压达到由电压源提供的第一输入电压。 然后,开关器件可以将负载端子上的电压保持在第一输入电压。 最后,开关器件可以通过第一电感放电容性负载,直到负载端子上的电压达到零伏。

    Resonant-recovery power reduction techniques for pulse generation
    2.
    发明授权
    Resonant-recovery power reduction techniques for pulse generation 有权
    用于脉冲发生的谐振恢复功率降低技术

    公开(公告)号:US09455702B2

    公开(公告)日:2016-09-27

    申请号:US14547705

    申请日:2014-11-19

    Applicant: Apple Inc.

    Abstract: The disclosed embodiments provide a circuit for driving a capacitive load. The circuit includes a first inductor with an input terminal and a load terminal, wherein the load terminal is coupled to the capacitive load. The circuit also includes four or more switching devices. The switching devices may hold a voltage on the load terminal at zero volts. Next, the switching devices may charge the capacitive load through the first inductor until the voltage on the load terminal reaches a first input voltage supplied by a voltage source. The switching devices may then hold the voltage on the load terminal at the first input voltage. Finally, the switching devices may discharge the capacitive load through the first inductor until the voltage on the load terminal reaches zero volts.

    Abstract translation: 所公开的实施例提供用于驱动电容性负载的电路。 电路包括具有输入端子和负载端子的第一电感器,其中负载端子耦合到电容性负载。 该电路还包括四个或更多个开关装置。 开关器件可以在负载端子上保持零伏特的电压。 接下来,开关器件可以通过第一电感器对容性负载充电,直到负载端子上的电压达到由电压源提供的第一输入电压。 然后,开关器件可以将负载端子上的电压保持在第一输入电压。 最后,开关器件可以通过第一电感放电容性负载,直到负载端子上的电压达到零伏。

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