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The principle of power aging

2018.06.12 browsing marriagehelpadvisor.com
Ageing belongs to Environmental Stress Screening (ESS), which is a fairly popular quality and reliability assurance method for modern high-tech electronic products. As the name implies, environmental stress screening uses external environmental stress to enable potential storage in electronic hardware. It was discovered that the repellent caused by weak components and poor processes during the manufacturing process occurred early, and then used a variety of appropriate inspections or test methods to find out and remove these products with rickets, or Take corrective actions to repair, in order to improve the quality of hard goods manufacturing, to maintain the level given by the design, so the selected delivery products are of excellent quality and high reliability, allowing customers to use the peace of mind.
 
What is the life cycle of a power supply product? The failure rate of a product varies with the life cycle time. The general trend of change is bathtub-shaped, which is called a bathtub curve. The typical product bathtub curve is shown in the figure below. The failure rate bathtub curve can be roughly divided into three stages: the infant mortality period, the random failure period, and the wear-out failure period. When the product is manufactured, it looks like Infants are prone to becoming ill and have a high failure rate. Therefore, they are called the early-day expiration period. During this phase, the failure rate of a product gradually decreases with time, known as the decreasing failure rate (DFR), and the failure rate increases. After the time is reduced to a certain level, there is no longer any significant change. The failure phenomenon is accidental and random, so it is called an accidental failure period. Therefore, the aging of the power supply product is the early failure of the detected product, and it is not difficult to come to a conclusion: The process requires a realistic load and aging test in a certain environment, so the effective power aging method is the basic guarantee for product quality, CPET has created a model of the industry's power aging electronic load module, providing all aspects of power aging test solution.

 
电源老化的原理-中科源
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