摘要
文章构建了基于Boost型变换器的DC/DC变换器,系统以专用芯片UC3842作为控制核心,辅以Atmega128单片机稳定输出电压。利用UC3842自身的电压电流环反馈,加上输出电压均值环设计成输出电压稳定可调的DC/DC变换电路。本系统还采用了模拟PWM技术、在线保护技术、人机交互技术。实际测试表明该系统各项指标均达到或超过设计要求。
A DC/DC converters based on boost converter is presented in this paper,which used particularly chip of UC3842 as the core controller of the system,and assisted by single-chip Atmega128 to stable output voltage.With the voltage loop and current loop feedback and the additional average output voltage loop on the UC3842 itself,a circuit of DC-DC converter which has stable and adjustable voltage is designed.The PWM technology,online protection technology and man-machine interaction technology are also applied to the system,and the actual test indicates that it has reached even surpassed the requirements.
出处
《通信电源技术》
2011年第3期34-38,共5页
Telecom Power Technology
