基于UC3843PWM控制的恒流电子负载的设计  

Design of the Constant-Current Electronic Load Based on UC3843WM Controller

作　　者：邓木生[1] 严俊[1] 廖无限[1] 

机构地区：[1]湖南铁道职业技术学院,湖南株洲412001

出　　处：《电源技术应用》2010年第11期41-44,共4页Power Supply Technologles and Applications

摘　　要：本文设计了以电流型PWM控制芯片UC3843为核心,主电路采用反激式拓扑结构来实现0～5A可调电流型电子负载。与传统的线性电子负载相比,该电子负载具有体积小、成本低、功耗低、效率高、适用面广等优点,而且在节能、降耗及环保等方面都具有重要的意义,符合当前的电子负载发展方向。Based on current-mode PWM controller UC3843, 0-5A adjustable current electronic load is achieved by .adopting fly-back topology in the main circuit Compared with the traditional linear electronic load, such electronic load not only has merits of small size, low cost and power consumption, high efficiency and wide application, but also has great significance in terms of energy saving, consumption reduction and environmental protection, which is in line with the current development of the electronic load.

关 键 词：恒流 电子负载 PWM UC5845 

分 类 号：TN609[电子电信—电路与系统] TM46[电气工程—电器]