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BOOST CONVERTER TOPOLOGY FOR HIGH EFFICIENCY AND LOW BATTERY VOLTAGE SUPPORT
BOOST CONVERTER TOPOLOGY FOR HIGH EFFICIENCY AND LOW BATTERY VOLTAGE SUPPORT
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机译:升压转换器拓扑,可实现高效率和低电池电压支持
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摘要
A method and apparatus for a boost converter topology for low battery voltage support. In the method, an input voltage is boosted by closing first through third switches and then opening a fourth switch to charge a capacitor. The first and second switches are then opened. The voltage is then doubled by closing the third and fourth switches to discharge the first capacitor into a second capacitor and charging a third capacitor. A further embodiment provides an additional method for selectively boosting an input voltage to an electronic device. The method first characterizes the efficiency of a circuit, and then determines a crossover point for a ratio of output voltage to input voltage, and then enabling or disabling a voltage boost converter based on the crossover point.
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