source:Industry News Popular:adapter release time:2022-04-20 11:22:15 Article author:yu
High-frequency switching power adapters currently occupy nearly half of the domestic market. Its unique advantages of small size, low power consumption, wide voltage regulation range, and high filtering efficiency make this new product not only popular among consumers. Welcome, it speeds up the manufacturer's technology research and development and market expansion. However, despite the various advantages, high-frequency adapters still have some disadvantages and defects that cannot be overcome by seniors. This article will briefly analyze and summarize this problem.
In the daily work process, one of the biggest shortcomings of high-frequency switching power supply is that there is serious switching interference in the body itself. Because in the high-frequency switching power supply, the power adjustment switch tube works in the switching state, and the AC voltage and current generated during the switching process will generate peak interference and resonance interference through other components in the circuit. At this time, if the engineer does not take certain measures to suppress, eliminate or shield these interferences in time, it will seriously affect the normal operation of the whole machine.
In addition to the serious interference problem, the high-frequency switching power supply also has a serious defect, that is, no power frequency transformer is designed in its own oscillating circuit system, so that the electromagnetic interference cannot be effectively isolated, and these interference will In the process of work, it directly enters the power frequency power grid, and will cause serious interference to other nearby electronic instruments, equipment and control equipment, and even cause the paralysis of the entire working system.
The main defects of high-frequency switching power adapters during operation are resonance interference, severe peak interference, and lack of power frequency transformers. Engineers need to fully consider the above problems when designing circuit systems.
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