摘要
在聚合物分散液晶材料的光性能研究中,合适的驱动电源是必不可少的实验辅助系统。针对目前相关商业产品偏少的现状,提出了一种以S3C2440微处理器为主控器的驱动电源系统设计方案。通过采用AD9833信号发生芯片产生波形、频率、幅值可调的交流信号,经过升压和功率放大后,输出电压可在400 V以内,供测试液晶材料光性能实验使用。实际使用表明,该系统能满足实验要求并简化了实验步骤,克服了在以往实验中驱动信号单一的缺点,与国外同类型产品相比,成本更为低廉。
A suitable driving power supply is essential for the research about optical performance of polymer dispersed liquid crystal materials. In view of the low amounts of related commercial products,a design scheme of a driving power supply by using S3C2440 Micro-processor as the main controller is put forward. An output voltage within 400 V is achievable after boost and power amplification by using AD9833 signal chip to generate the waveform,frequency,and amplitude adjustable AC signal. The practical application shows that this system meets the requirement of experiment with simpler procedures and lower cost and overcomes the shortcomings of simple driver signals in conventional experiments.
出处
《电子科技》
2016年第5期8-12,共5页
Electronic Science and Technology
