Open AccessAnalysis of the voltage jump fault of the reinforced computer program-controlled power supply
Author(s) -
Chao Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/508/1/012065
Subject(s) - voltage , fault (geology) , signal (programming language) , jump , power (physics) , computer science , software , switched mode power supply , process (computing) , set (abstract data type) , electrical engineering , engineering , operating system , physics , quantum mechanics , seismology , programming language , geology
During the process of hardening the computer, it was found that the voltage of the program-controlled power supply that was originally set to a voltage value would suddenly jump when the machine was turned on and off. According to this problem, locate the fault. The cause of the final positioning fault is that the software of the program-controlled power supply processor has not set up a signal verification process, which causes the program-controlled power supply to mistakenly consider the changes generated by the RS232 signal when the power is turned on and off as voltage control signals, resulting in voltage jumps. Modify the software of the program-controlled power processor to increase the signal verification when the program-controlled power processor receives the RS232 signal of the main board, which can effectively solve the fault phenomenon.