The designation of programmable direct-current voltage-stabilized source based on Micro Controller Unit

摘要

Along with the rapid development of the electric technology, the direct-current power was wide application, its quality immediately influence operating performance of electrical equipment or controlling system. At present, basic link of each direct-current power is approximately same in the market. They include the alternating current supply, alternating current transformer (sometimes not to use), the leveling circuit, and the filter voltage-stabilizer circuit and so on. This article introduced the method and the principle of MCU controlling system which was used in the direct-current voltage-stabilized power, realizing the digit controlling adjustment of voltage-stabilized source and step-by-step with 0.1V under the wide output. In addition, it has analyzed the working principle to cause voltage stable and the method to adjust it. This power source has the characteristic that simple to adjust the voltage, direct-viewing to be read, stable voltage output and be advantageous for the intellectualized management.