开关电容DC-DC变换器

中文字数:2216,中文页数:3  英文字数:951页数:3

   Switched Capacitor DC-DC Converters
 The last century since the late 70s, with the design and manufacture of integrated circuit technology, a variety of electrical equipment to gradually develop in the direction of small-scale, corresponding to study compatible with the small size, light weight, high efficiency power supply has become an important topic of interest. Switching power supply using the traditional soft-switching technology, by increasing the switching frequency can reduce the volume of power, but because the structure contains inductors and transformers, and thus restricting the power to further reduce the size. Sheet inductance is now available although there is still not satisfactory.In recent years, a new type of switched-capacitor converters, this converter does not contain the structure of inductors and transformers, only by the capacitor network and constitute a switch, it is expected to further reduce the power of the volume, even in the chip to achieve integration, based on these significant advantages, this converter increasing the widespread interest aroused.

 开关电容DC-DC变换器
 
 上世纪70年代后期以来, 随着集成电路设计与制造技术的进步, 各种用电设备逐渐向小型化方向发展, 相应地, 研究与之配套的体积小, 重量轻, 效率高的电源已成为人们感兴趣的重要课题。传统的开关电源采用软开关技术, 通过提高开关频率可以缩小电源的体积, 但是由于结构中含有电感和变压器, 因而限制了电源体积的进一步缩小。如今虽然已有片状电感问世, 但仍然不能令人满意。近年来, 人们提出了一种新型的开关电容变换器, 这种变换器结构中不含电感和变压器, 仅由电容网络和开关管构成, 因此可望进一步缩小电源的体积, 甚至在芯片中实现集成, 基于这些显著的优点, 这种变换器愈来愈引起人们的广泛兴趣。

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