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异步升压转换器中的肖特基二极管的选择_英版
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2016-12-05
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Asynchronous boost converters require a Schottky diode as the rectifying element due to the diode's low forward voltage and fast turn-on time. Because of these characteristics asynchronous boost converters can have as good as, or better efficiency, than synchronous boost converters. This is especially true when the boost conversion ratios (VOUT/VIN) are high, and the Schottky diode conduction time is low. Figure 1 shows a typical boost converter used in an LCD backlight application. Circuits like these are good examples of how picking the right diode is important in achieving maximum efficiency and performance.
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