摘要
介绍了基于UC3843的反激式升压开关电源。该电源采用单片机89S52作为核心控制芯片,利用A/D TLC1543检测输出电压,通过D/A MAX504设置和调整输出电压。该电源具有电路设计简单、成本低、软启动、输出电压可调范围宽、噪声纹波系数低和DC-DC变换效率高等特点。与传统的开关电源比较,增加了过流保护和过压保护功能,排除故障后,电源能自动恢复为正常工作状态。
The fly back boost switching power supply based on UC3843 is introduced in the paper.The power uses MCU 89S52 as a core chip, uses A/D TLC1543 to detect output voltage, and set the output voltage through D / A MAX504.The power circuit design is simplicity,low cost, soft-start, output voltage adjustable wide range, low noise and ripple, high coefficient DC-DC conversion efficiency.With the increase of the over-current protection, over-voltage protection function, after troubleshooting, the power can automatically restore to normal working condition.
出处
《天津工程师范学院学报》
2008年第3期28-31,共4页
Journal of Tianji University of Technology and Education
基金
天津工程师范学院科研发展基金项目(KJ0826)
