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What is the role of bare board power supply high and low temperature test of bare board power supply manufacturers?
Release time:
2023-02-02 13:54
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Bare board power supply manufacturers need to pass strict tests before leaving the factory, including high temperature and low temperature tests. The bare board power supply that passes the high and low temperature test can ensure product quality, reduce the probability of abnormalities in the entire application process, and increase the service life. Although the bare board power supply of the new production line can be used immediately, many times when the product is in the hands of customers, they find it unavailable. This is because during processing, only simple plug-in testing is performed, and long-term plug-in testing is not performed in a natural environment.
Bare board power supply manufacturers of bare board power supply is very common failure occurred in the early and late. Power manufacturers can not accurately control the late, can only operate the early. Therefore, eliminate the problem before the product is delivered to the customer. The key to the embrittlement method of bare board power supply manufacturers is the embrittlement under normal temperature load and the high and low temperature test of high temperature plug-ins. One common type is high temperature embrittlement. According to the high temperature embrittlement, the shortcomings or poor quality of commercial parts can be exposed, thereby improving the reliability and reliability of the product.
The high temperature aging of bare board power supply by bare board power supply manufacturers refers to the natural environment that simulates the high temperature application of the product. The high temperature and low temperature test time is usually 12-48 hours. High temperature aging has two steps. One is to place the insert in a high-temperature natural environment to make it brittle. The other is to use a more special natural environment standard impact bare board power supply in a high temperature natural environment.
What is the role of bare board power supply high and low temperature test of bare board power supply manufacturers?
1. When the bare board power supply is aging, you can use the monitor on the computer to view the statistical data of the power supply in the working state to reflect the application of the power supply.
2. Long-term embrittlement can monitor the change of module characteristics caused by temperature change.
3. When it becomes brittle, check the power supply during processing. The module can run stably for a long time and improve the reliability of the product.
Generally, in the entire process of high and low temperature testing, the power supply application conditions are more special than the natural environment that people usually use, and the specifications are more stringent. Only such detection can reflect the reliability of bare board power supply, and only bare board power supply manufacturers can guarantee product quality.
The bare board power supply is a compact, high-quality regulated power supply product with advanced manufacturing technology. Because the bare board power supply is simple to use, it has the advantages of convenient expansion and good maintainability when the system is composed. Therefore, it is widely used in aerospace, communication power supply, automotive electronics, electronic equipment, power control and other fields. These bare board power supplies usually require a wide operating power range (36V to 75V) and high output power (up to 700W full brick module power can be provided). The power density is very high, and the cooling design is a big problem.
For example, if the conversion efficiency of a bare board power supply with a half-brick output power of 200W is 89%, 24.7w of electrical energy will be converted into heat energy. Without cooling measures, the half-brick bare board power supply may be damaged due to overheating. Therefore, in the design of high-power bare board power supply, proper heat dissipation design is becoming more and more important. The key components of the power supply structure of the bare board power supply are: pulse width modulator, optocoupler, VDMOS and Schottky diode.
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