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    • 12. 发明授权
    • Switch mode power converter
    • 开关电源转换器
    • US07626369B2
    • 2009-12-01
    • US10572981
    • 2004-09-16
    • Franciscus Adrianus Cornelis Maria SchoofsJohan Christiaan Halberstadt
    • Franciscus Adrianus Cornelis Maria SchoofsJohan Christiaan Halberstadt
    • G05F1/00
    • H02M3/1584H02M3/1588H02M2001/0009Y02B70/1466
    • A load line regulated switched-mode power converter supplies an output voltage and an output current to a load. The power converter includes an inductor, a switch coupled to the inductor, a first impedance, a second impedance, and a power converter controller. The power converter controller includes a first sense circuit to obtain momentary information on a first current which flows through the first impedance, and which is related to the output current. A difference between a zero load voltage and the output voltage is determined to obtain a difference level. A second sense circuit supplies further information on a second current which flows through the second impedance, and which is related to the first current. An integrator integrates a difference between the further information and the difference level to obtain a correction signal. A switch controller receives the difference level, the momentary information and the correction signal to control the switch to obtain a substantially zero correction signal in a steady state.
    • 负载线路稳压开关电源转换器向负载提供输出电压和输出电流。 功率转换器包括电感器,耦合到电感器的开关,第一阻抗,第二阻抗和功率转换器控制器。 功率转换器控制器包括第一感测电路,以获得流过第一阻抗的第一电流的瞬时信息,并且与输出电流相关。 确定零负载电压和输出电压之间的差异以获得差值。 第二感测电路提供关于流过第二阻抗的第二电流并且与第一电流相关的进一步信息。 积分器将进一步的信息和差分电平之间的差集成,以获得校正信号。 开关控制器接收差分电平,瞬时信息和校正信号以控制开关以在稳定状态下获得基本为零的校正信号。