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    • 1. 发明授权
    • Low-power feedback and method for DC-DC converters and voltage regulators for energy harvesters
    • 用于能量收集器的DC-DC转换器和电压调节器的低功率反馈和方法
    • US08222881B2
    • 2012-07-17
    • US12657543
    • 2010-01-22
    • Vadim V. IvanovTimothy V. Kaithoff
    • Vadim V. IvanovTimothy V. Kaithoff
    • G05F1/00
    • G05F1/56G05F1/575
    • A converter (10) for converting a first DC voltage (VDD) to a second DC voltage (VOUT) includes an output stage (40) for producing the second DC voltage (VOUT) in response to both the first DC voltage (VDD) and an output of an error amplifier (20). A sampling circuit (15) periodically energizes a voltage divider (R0,R1) by periodically coupling a first terminal thereof to the second DC voltage and periodically coupling an output (14) of the energized voltage divider to a feedback conductor (7) to refresh a feed back capacitor (C0) coupled between the second DC voltage and the feedback conductor. The feedback conductor is coupled to an input of the error amplifier.
    • 用于将第一直流电压(VDD)转换为第二直流电压(VOUT)的A转换器(10)包括用于响应于第一直流电压(VDD)和第二直流电压(VDD)两者产生第二直流电压(VOUT)的输出级(40) 误差放大器(20)的输出。 采样电路(15)通过将其第一端周期性地耦合到第二DC电压并周期性地耦合到通电分压器的输出(14)到反馈导体(7)来周期性地激励分压器(R0,R1),以刷新 耦合在第二DC电压和反馈导体之间的反馈电容器(C0)。 反馈导体耦合到误差放大器的输入端。