基于单片机的交流调功器设计

单片机系统的应用给现代工业测控领域带来了一次新的技术革命，自动化、智能化均离不开单片机的开发和使用。随着时代的发展，数字电子技术已经普及到我们生活，工作，科研，各个领域。在诸如加热、调光等应用场合，需要对交流电压进行调整。这种调整可以只关心负载功率情况而不管交流电压的幅度大小，可以考虑采用调整占空比的方式达到调整功率的目的。本文介绍了晶闸管交流调功器的发展现状，发展中所面临的问题等。通过对硬件系统和软件系统的实现，分析设计了一种基于AT89C2051单片机的晶闸管交流调功器。以单片机为控制核心，产生触发信号，隔离驱动晶闸管，以达到调节负载功率的目的。这种调功器中的晶闸管是过零导通和过零关断的。因此，对电源的波形不会产生畸变，干扰小。
关键词：单片机；晶闸管；交流调功器；

Abstract  Application of single-chip microcomputer system for monitoring the field of modern industry has brought a new technological revolution. Automation, intelligent single-chip micro computer are inseparable from the development and use. With the development of times, digital electronic technology has spread to our lives, work, research in various fields. Such as heating, lighting and other applications, need to adjust the AC voltage. This is adjusted being able to care for loads power condition only but is disregards the alternating voltage extent size, could be considered a way to adjust the duty cycle to achieve the purpose of adjustment of power. In this paper, thyristor power regulator sharing the development of the status quo, the development problems faced by. Of hardware systems and software systems to achieve, analysis and design of a thyristor-based exchange AT89C2051 MCU Power Regulator. For the control of a single-chip core, generated trigger signals, thyristor drive isolation, In order to achieve the purpose of regulating the load power. This Power Regulator thyristor in conduction is zero and the zero-crossing turn-off. Therefore, the waveform of the power does not produce distortion, interference small. [资料来源：http://THINK58.com]

[来源：http://think58.com]

[资料来源：www.THINK58.com]