精选优质文档-倾情为你奉上题目名称:降压型变换电源摘要:该降压电源变换器电路采用MC34063芯片作为其电路构成的核心部分,用以对12V的输入电压经过降压电源电路降至5V;定时电容Ct用以控制振荡器的频率,电感L和电阻R1、R2则是用以控制输出端电压;调节电感L的电感量以及电阻R2与R1比值即可控制输出端的电压输出,该电路设计则是输出端的电压降至5V;且要求在输出端带负载时的电压压降在00.5V之间,同时要求输出端的纹波尽量小。关键字:降压型变换电源 MC34063 12V降至5VEnglish subject:Buck type transform power supplyAbstract:The buck power converter circuit adopts MC34063 chip as its core part of a circuit to the input voltage of the 12 V power supply circuit after step-down down to 5 V; Tim