Introduction - If you have any usage issues, please Google them yourself
STC89C52 system used as the core of single-chip microcomputer control devices, the use of regular interruption of tasks designed to respond to different frequency, CPU implementation of the tasks, respectively. This task to build process to seize the ideological framework for the realization of the modules to achieve a controllable constant voltage DC power supply design. 10-bit AD1543 and DA5615, to achieve high-precision measurement of output through closed-loop control, so that the output voltage stability display module using the WM-C1602N liquid crystal display module, a friendly man-machine interface. The system uses a municipal electric transformer power supply, by the single-chip control module, AD converter, DA converter, voltage regulator circuits, the keyboard input module and display module with high-precision DC voltage output function, high precision measurement, features such as anti-interference ability.