开关电容DC-DC变换器

K. Kuwabara, E. Hiyachika
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引用次数: 38

摘要

新型开关电容(SC) DC-DC变换器是由三种基本的SC DC-DC变换器发展而来的。转换器的输出可以通过改变晶体管开关的占空比来调节。这些变换器具有传统开关稳压器(降压、升压和降压-升压变换器)所没有的特性。在这些变换器中,电压极性逆变变换器具有以下特点,有望广泛应用于小尺寸、小功率的装置中:(1)输入电流无脉动;(2)可加过流保护;(3)输出电路的多级连接使变换器可以用作升压、降压变换器。
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Switched-capacitor DC-DC converters
Novel switched-capacitor (SC) DC-DC converters are derived from three basic SC DC-DC converters. The converter outputs can be regulated by changing the duty ratio of the transistor switch. These converters have features not found in conventional switching regulators (buck, boost, and buck-boost converters). Of these converters, the voltage polarity inverting converter is expected to be widely used for small-size, small-power units because it has the following features: (1) nonpulsating input current; (2) overcurrent protection can be added; and (3) multistage connection of output circuits enables the converter to be used as a step-up, step-down converter.<>
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