基于UC3825芯片重频激光电源设计与研究

Based on the UC3825 chip repetition frequency laser power supply design and research

随着微电子技术和电子电力技术的不断发展,高频开关稳压电源正以体积小、效率高等优点而广泛应用于各种军用、民用仪器仪表、控制设备产品中。激光电源作为一种特殊开关电源,和普通开关电源的区别是负载伏安特性完全不同,本文主要介绍了一种基于UC3825芯片的重复频率激光电源的工作原理,它采用半桥式变换电路,利用UC3825进行电流型调制,用IR2110双通道驱动芯片驱动场效应管,采用单片机AT89C51组成的控制电路对脉冲激光氙灯进行重复频率充放电控制,最终成功实现了一种基于UC3825芯片的重复频率激光电源的研制。

With microelectronic technology and power electronic technology development, high frequency switching power supply with small volume, high efficiency, etc. are widely used in various military, civilian insmunents, control equipment products. Laser power as a kind of special switching power supply, switching power supply and the common difference is load volt - ampere characteristics are quite different, this paper mainly introduces one kind based on the UC3825 chip repetition frequency laser power supply works, which utilizes half- bridge converter circuit, using UC3825 electric cun＇ent modulation, using IR2110 dual channel driving chip driving FET, the single chip microcomputer AT89C.51 control circuit composed of a pulse laser repetitive frequency of xenon lamp charging and discharging control, ultimately the suecesafitl implementation of the one kind based on the UC3825 chip repetition frequency laser power supply.