基于STM的LED驱动电源设计.doc

基于STM32的LED驱动电源设计 摘 要 高亮LED是当今照明技术的重大进步。LED驱动电源的控制核心采用ARM系列微处理器STM32，实现LED驱动的智能控制。ARM系列微处理器的应用越来越广泛， 其采用当前最先进的设计理念，使得性能大大提升。能使我们在微控制器、集成开发软件、编程语言等知识的学习和掌握水平，使我们在微控制器设计、软件编程等方面的应用能力得到全面训练和提高。 关键词：，， STM32-based software design of the LED drive power Author : Dai Yuanwei Tutor : Zhang Yuxiang Abstract Bright LED lighting technology is today a major advancement. LED drive power control core with ARM family of microprocessor STM32, realization of LED-driven intelligent control.ARM family of microprocessor used more widely, which uses the most advanced design concepts, making the performance greatly enhanced.Allow us to micro-controllers, integrated development software, programming languages, such as knowledge, learning and mastery level, so that we in micro-controller design, software programming and other aspects of competency have been fully trained and improved. For general lighting purposes, people need white light.As a new type of light source, LED has no pollution, long life, resistance to vibration and shock of the distinct characteristics.Although the luminous efficiency white LED is gradually improving, but with LED lights matching drive poor performance, promote the use of LED failure rate has become the bottleneck.So many manufacturers use constant current mode to drive LED, and thus the design of switching power supply will need a constant current of the DC drive power.The conventional switching power supply control IC with high efficiency, output stability, high reliability, and offer features such as remote control.Entirely suitable for driving LEDs switching power supply. In this paper, through the design of a constant current drive power to drive the LED.Through a variety of power electronic components and power electronic circuits to form a constant current power supply, to meet the design requirements. Key words: LED, Power ,