【摘要】 整流电路由于滤波不彻底,输出电压会产生纹波,即使采用电池供电也会因负载的波动而产生纹波。因此传统的Buck型变换器不可避免地出现输出电压纹波。文章分析了Buck变换器纹波成分的来源以及与电路参数的关系,提出了一种交错并联的Buck电路以减少纹波,并分析了该电路的运行原理,最后对电路进行了仿真,仿真结果显示,交错型Buck电路可以有效减少纹波。更多还原

【Abstract】 The output voltage of rectifier circuit is likely to produce ripples because of incomplete filtering.Even if the battery power supply is used,there will also be ripples due to load fluctuation.Therefore,the traditional Buck converter inevitably produces output voltage ripples.An analysis is made in terms of the source of the ripple components of the Buck converter and its relationship with the circuit parameters,and then a kind of interleaved Buck circuit is proposed to reduce ripples.Besides,the operation principle of the circuit is analyzed,and the circuit is finally simulated.The simulation results show that the interleaved Buck circuit can effectively reduce ripples.更多还原