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发明授权
US08552705B2 Lower power controller for DC to DC converters 有权
用于DC到DC转换器的低功率控制器

Lower power controller for DC to DC converters
摘要：
The present invention relates to a DC to DC converter system (100), which comprises converter means (110) and control means (120). The switching sequence of the first, second and third switching means (S1, S2, S3) is controlled by the control means (120) in such a manner that, during the on-time of the second switching device (S2), the first current (II) that flows through the inductive storage element (L) of the converter means (110) can be indirectly measured through the first voltage (VC1) across the capacitive storage element (C1), which is being charged with a second current (12) proportional to the input voltage (Vin) of the converter means (110) and provided by the current source (CS). Thus, the on-time of the second switching means (S2) varies inversely proportional to the input voltage (Vin).
摘要（中）：

本发明涉及DC-DC转换器系统（100），其包括转换器装置（110）和控制装置（120）。 第一，第二和第三切换装置（S1，S2，S3）的切换顺序由控制装置（120）以这样的方式控制，即在第二切换装置（S2）的接通时间期间，第一切换装置 流过转换器装置（110）的感应存储元件（L）的电流（II）可以通过跨过电容性存储元件（C1）的第一电压（VC1）间接地测量，该电容存储元件被充电了第二电流 12）与转换器装置（110）的输入电压（Vin）成比例并由电流源（CS）提供。 因此，第二开关装置（S2）的接通时间与输入电压（Vin）成反比。

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