摘要
文章提出了一种反激式结构的数控开关电源的设计方案,该开关电源采用低成本的控制芯片—UC3842。文中还提出了UC3842在自馈电压变化很大情况下稳定供电的解决方案。此方案电压调节方式(如,RS485总线、USB总线、按键、CAN总线等)多样化,适合使用在工业现场以及实验室。
This paper presents a design proposal for a digital control switching power supply with flyback structure,this switch adopts low-cost control chip,IC-UC3842.The paper also proposes a solution for UC3842 to stably supply power in voltage changing sharply.The voltage adjustment methods of this solution are diversified,such as RS485 bus,USB bus,button,CAN bus,so it is suitable for being used in the industrial fields and laboratories.
出处
《电子技术（上海）》
2011年第5期19-20,18,共3页
Electronic Technology
