基于单片机控制的开关电源设计系 部: 电子与通信工程系 姓 名: 专业班级: 电信 10D1 学 号: 指导老师: 2012 年 9 月 21 日声 明本人所呈交的基于单片机控制的电源开关设计,是我在指导老师的指导和查阅相关著作下独立进行分析讨论所取得的成果。除文中已经注明引用的内容外,本论文不包含其他个人已经发表或撰写过的讨论成果。对本文的讨论做出重要贡献的个人和集体,均已在文中作了明确说明并表示谢意。作者签名: 日 期: 【摘要】开关电源体积小、效率高,被誉为高效节能电源,现己成为稳压电源的主导产品。随着开关电源在计算机、通信、航空航天、仪器仪表及家用电器等方面的广泛应用, 人们对其需求量日益增长, 并且对电源的效率、体积、重量及可靠性等方面提出了更高的要求。开关电源以其效率高、体积小、重量轻等优势在很多方面逐步取代了效率低、又笨又重的线性电源。本文介绍了一款基于 PWM 技术的 DC-DC 开关稳压电源,用 proteus 仿真,输出纹波小,电压稳定可靠.[关键词]:开关电源,DC-DC,单片机,proteus[Abstract]: The small size of the switching power supply, high efficiency, known as energy-efficient power supply, has now become the leading products of the regulated power supply.With the wide application of switching power supplies in computers, communications, aerospace, instrumentation and household appliances, people growing their demand and higher power efficiency, size, weight, and reliabilityrequirements. Switching power supply for its high efficiency, small size, light weight advantages in many ways to gradually replace the inefficient, clunky, heavy linear power.This article describes a DC-DC switching power supply based on PWM technology, with proteus simulation output ripple voltage is stable and reliable.[Keywords]: switching power supplies, DC-DC, single-chip, proteus目录【摘要】..........................................................................................................................................3一、引 言.........................................................