基于80C196KC的大功率微弧氧化电源控制系统的研究

针对镁合金表面处理对参数调节和效率的要求,研制了大功率微弧氧化电源控制系统,该系统以80C196KC为核心,对整个系统的动作程序和工艺参数进行控制,电源实现了双向不对称脉冲输出和在大电流、高电压工况下主要参数的一定范围调节.硬件电路与软件设计中采用有效的抗干扰措施,使整个控制系统稳定、可靠.实验结果表明,该系统可以满足微弧氧化工艺的要求,实现微弧氧化的自动化.

Investigation of control system of 80C196KC-based high-power supply for microarc oxidation

Aimed at the requirement of primary parameter adjusting and efficiency in the process of magnesium alloy surface treatment,a control system of high-power supply for microarc oxidation was developed.Monolithic computer 80C196KC was adopted as the kernel of this controlling system to control system operation and processing parameters during the microarc oxidation.With this high-power supply,two-way asymmetric pulse output,primary parameters could be continuously adjusted within a given range in the condition of high current and high voltage mode.Some effective anti-interference measures were applied in hardware circuit and software program designing,making the controlling system steady and reliable.The experimental result showed that the requirement of microarc oxidation processing could be met with this system.The automation of microarc oxidation was realized.