摘要:在各种电子实验中，电源是最基本的需要。设计出一种高精度的电源不但能满足电子实验的要求，而且能满足在不同实验中需要使用不同的电压值来测试的要求。

　　　本文设计了一个高精度直流稳压电源。该电源由变压器、整流电路、滤波电路、稳压电路、保护电路、显示电路等组成。显示电路采用MAX136A/D转换电路。

　　　随着现代科技的不断发展，各种各样的电气，电子设备已经广泛的应用于日常工作，科技，学习等各个方面。电源作为电气，电子设备必不可少的能源供应部件，需求日益增加，而且对电源的功能，稳定性等各项指标也提出了更高的要求。对电源的研究和发展已经成为新技术，新设备开发的重要环节，在推动科技发展中起着重要的作用。为了满足电子产业对直流电源需求，本论文就以讨论设计一个优质，经济，适用，可靠，合理，稳定的直流稳压电源为目的的设计论文。使直流电源的规划布局科学合理，保证所有电子产业不断增长的用直流电源需要！使某电子企业发展具有预见性，做到有计划，按比例，经济、合理地可持续发展。保证直流稳定电源质量，同时，为市场提供充足、可靠、合理、稳定，经济的电源[3]。

关键词：直流稳压电源，整流，滤波，稳压，MAX136A/D转换

Abstract:Summary in a variety of electronic experiment, power is the most basic of needs. Design of a high precision power supply not only to meet the requirements of electronic experiments, and can meet the needs of different experiments using different voltage values to test requirements. 

　　　This design has a high-precision DC power supply. The power transformer, Rectifier, voltage regulator circuit, filter circuit, circuit protection, show circuits and other components. Display circuits using MAX136A/D conversion circuit. 

　　　With the development of modern science and technology, a variety of electrical, electronic equipment has been widely used in daily work, technology, learning and other aspects. As electrical power, energy supply of essential parts of electronic equipment, increasing demand, and power features, stability, and other indicators are also put forward higher requirements. Research and development on power has become the new technology, new device developed significant links, and plays an important role in promoting the development of science and technology. In order to meet the electronic industry demand for DC power supplies, this paper is to discuss the design of a high quality, economy, appropriate, reliable, reasonable, stable DC voltage-stabilized power source designed for the purpose of thesis. DC power supply planning of scientific and rational, guarantee all of the electronics industry continues to grow with DC power supply needs! a development of e-business and anticipating, do so, proportionally, to sustainable economic and reasonable.  Ensure the quality of DC stabilized power supply, also, to provide adequate, reliable, reasonable and stable market, and economic power.

Keywords: DC voltage-stabilized power supply, Rectifier, filter, regulator, MAX136A/D conversion