摘要
直流开关电源在集成电器、工业控制领域、医疗设备、军用设备等领域具有广泛应用,本文对基于UC3842B集成电路模块设计的直流开关电源展开了研究。其电路结构包括了三个部分:AC-DC转换电路、DC-DC转换电路和控制电路。通过该电路对输入电压的调控,最终实现了将输入的220V/50Hz的交流电压转换为10V和5V的直流输出电压,并达到了对输出负载的电压电流的检测和调控的作用。最后,本文还进行了电压特性及热效应的分析。
DC switching power supply is widely used in the fields such as integrated electrical apparatus, industrial control, medical equip- ment, and military equipment .In this paper, the DC switching power supply based on UC3842B integrated circuit module is studied.The circuit structure is composed of three parts： AC-DC conversion circuit, DC-DC conversion circuit and control circuit.By regulation of the circuit of the input voltage, a DC switching power supply is implemented to convert 220V/50Hz AC input voltage into 10V and 5V DC output voltage, and realize the function of detection and regulation of load voltage and current output.Finally, voltage characteristics and thermal effects for the circuit are analyzed.
出处
《电子世界》
2017年第18期5-7,共3页
Electronics World
基金
国家自然科学基金(61604046)"半导体功率器件可靠性教育部开放课题"
