同步整流boost升压电路

同步整流boost升压电路是一种采用同步整流MOSFET代替传统异步变换器的续流二极管的升压电路。这种电路能够极大地提高电源转换效率。同步整流MOSFET选择低内阻、低结电容，能够为升压器提供良好的胜能。此外，同步整流boost升压电路还可以加入输出电压反馈调节和一些保护功能，如过流、过温、过压、欠压、软起动等，以控制BOOST变换器的主电路。如果将主功率MOSFET、输出二极管或同步MOSFET也集成到芯片里面，就构成了单芯片BOOST变换器。\[2\]\[3\]
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