Design of intelligent numerical control switch power supply

Abstract

The invention relates to a numerical control adjusting technology of a switch power supply and data display and remote control of an upper computer. A frame body, a power supply mainboard, a high precision AD sampling circuit, a temperature control circuit, an embedded microcontroller module, a liquid crystal module, a serial port communication module, a digital input module and an alarm circuit are included. Hardware circuits of an embedded micro-control system, a power supply system and the like are designed. In the invention, remote control can be achieved; and a computer is used to observe a load characteristic change curve in real time so that precision of the power supply is increased, circuit analysis is convenient, and scientific research, factory testing and science and education become convenient too. A design of an intelligent numerical control switch power supply possesses the following functions of 1, using a coding switch to adjust 0-50V/10A output; 2, using a button to select a communication protocol to connect a computer or other portable equipment so as to realize remote control and data monitoring; 3, using an embedded microcontroller to carry out intelligent detection of a power supply key parameter; 4, carrying out functions of overvoltage and overcurrent protection, LCD display and data storage.

Description

technical field [0001] The invention relates to the numerical control adjustment technology and multi-functional application of switching power supply. It has great practical significance. Background technique [0002] In factory production testing and teaching experiments, the performance of the power supply is the most critical indicator. At present, the regulated power supplies produced by most manufacturers in my country are mostly linear power supplies and fixed-output switching power supplies. Most of the adjustable power supplies produced by manufacturers are linear power supplies, and the output is adjusted by manually adjusting the knob. It has the following two problems. One is that it is inconvenient to use, and there are many steps, and it needs to be adjusted repeatedly; the other is that the linear power supply is bulky, low in efficiency and low in power compared with the switching power supply at the same power; With the development of science and technolog...

AI Technical Summary

Problems solved by technology

On the one hand, it can solve the disadvantages of traditional power supply, such as large error, many operation steps, and output out of control caused by potentiometer failure, and solve the old problems that have existed for many years in the actual operation of the enterprise. It can greatly improve work efficiency and improve the convenience of operation, which is very important. On the other hand, the power supply adopts advanced sampling analysis system, intelligent processing and storage system, and the collected signal is processed and analyzed by algorithm to display intuitively, so that the operator has a zero-distance operating experience, and integrates Error self-compensation, system self-calibration, single-chip program watchdog, overvoltage and overcurrent automatic power-off and other functions, the research results have strong practical effects

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