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1、摘 要二次电源作为负载的能量供应装置，在电路系统中起着非常重要的作用。尤其在我国，交流电网的电压波动较大、干扰较多，二次电源已成为许多电子设备不可缺少的供电装置。安全可靠、技术性能符合负载要求的电源，可使负载的功能得以充分发挥，否则，可能使负载的技术指标降低，甚至会损坏负载。因此，作为二次供电电源，交流稳压电源己广泛用于工业生产、军事设施、医疗仪器及日常生活等各个方面，成为电子设备和机电设备可靠运行的基础设备，为了延长用电设备的使用寿命，降低工厂的经济损失，应保证其供电电压的稳定。尤其在工业现场环境下，电网品质差，电网波形畸变严重。因此，研制一种高效可靠的交流稳压电源作为负载的二次供电电源十分
2、必要。本课题是利用单片机（AT89S52）控制技术控制开关器件的通断，并按补偿电压的大小接入或切除某个补偿变压器，进行快速适时调节，保证了了供电电压的稳定。该设计主要分为以下六个模块：补偿单元、调节单元、单片机控制单元、半波整流单元、A/D转换单元、保护单元及报警单元。关键词：补偿式、交流稳压器、单片机、A/D转换Abstractsecondary power sources took tthe energy supply device of the load, is playing a very important role in the circuitry.Especially in ou
3、r country, in alternate current network the voltage is more fluctuations, and more interference, secondary power sources have become indispensable power supply device in many electronic devices. Safe and reliable, with technical performance requirements of the power load, the load can be fully funct
4、ional play, or else possibly causes the load the technical specification to reduce, even can damage the load. Therefore, as a secondary power supply,AC voltage-stabilized source has been widely uses in the industrial production, the military installation, the medical instrument and the daily life an
5、d so on each aspect, becomes the electronic installation and the electromechanical device reliable movement foundation equipment, in order to lengthen the service life of current collector, reduces the economic loss of factory . should guarantee its power line voltage the stability. Especially in th
6、e industrial field environment,the electrical network quality is especially bad, the electrical network waveform distortion is serious. Therefore,it is very necessary to develop a highly efficient and reliable ac voltage-stabilized source as the second power supply of load.This topic is use singlech
7、ip microcomputer (AT89S52) to control switch component the make-and-break, and according to the size of the compensation voltage access or the removal of a transformer compensation for quick timely adjust, guaranteed a supply voltage stability. The main design is divided into the following six major modules : Compensation module, regulatory module, singlechip microcomputer control module, voltage detection module, A/D conversion module, protection module and alarm module.待添加的隐藏文字内容3Key Words ：compensated mode ，AC voltage stabilize ，singlechip microcomputer，The A/D conversion
