基于STM32单片机的DLP驱动电路的研究

Study of DLP driver circuit based on STM32 MCU

Stm32是32位单片机,速度快,功能强,已被越来越多的应用于各类电子产品设计中,大功率RGB三色LED的体积小、重量轻、色彩饱和度好,已成为投影仪、背投电视等显示仪器首选的新型光源。为了得到结构更简单,携带更方便的仪器,本文在现有技术的基础上用stm32改进了DMD投影仪的驱动电路,用三色LED替代了传统DMD投影仪中的分立LED光源。与传统的DMD显示相比,该系统具有结构简单、体积小、重量轻、易于编程控制、成本低、节能环保等优点。

Stm32,the 32-bit SCM,has the advantages of high speed and strong power.It has been widely applied in electronic product design.The high power RGB LED which is small,light and good in color saturation has been the priority choice of new type light source in the display area of projector and rear-projection television.To get a DMD projector scope which is of more simple structure and is more convenient for carry,in this paper we have improved the driver circuit of DMD projection by using stm32 SCM and have used the high power RGB LED to replace the discrete LEDs.Compared with traditional DMD display,the system has many advantages,such as simple structure,small size,light weight,easy to be controlled,low cost,friendly to environment and energy saving and so on.