source:power adapter Popular:adapter release time:2021-06-26 09:25:25 Article author:sznbone
When buying a power adapter, will you consider its durability? What are the factors related to its service life? Let's follow the power adapter manufacturers to learn about it!
Many people will ask whether the power adapter is durable. The power adapter is a device that converts AC input to DC output. Its working principle is mainly to rely on IC to control the power switch to close to maintain a stable voltage output. However, this voltage must have ripples. At this time, a filter must be used for filtering. Generally, there will be no problems with the IC, so if there is a problem, it is a problem with the filter capacitor.
So we said that the first problem in the power adapter is the capacitor, and the filter capacitor inside the adapter is the most vulnerable, but this is not absolute, you can tell me the problems that other components will also occur during use. Eventually the power supply will not work. But we are talking about the law of large numbers, and we do not consider chance.
The filter capacitor in the power adapter usually uses a point solution capacitor (solid capacitors are also available, and the price is naturally very different). The temperature of the point solution capacitor is very high during the working process. Its service life is inversely proportional to the temperature. Higher, the shorter the service life. The quality of the capacitor definitely affects its life. The average company uses capacitors with a life span of several thousand hours. In contrast, the life of the power adapter is greatly limited. We use the top three manufacturers in the industry. The lifespan is generally more than 50,000 hours. After about 50,000 hours, the filter capacitor will bulge and the power adapter will no longer work.
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