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According to File No.12 [2015] of National Energy Technology in February 2015, three power supply standards——"Technical Specifications: AC - DC Switching Power Supply Electronic Components Derating", "Technical Specifications: AC - DC Switching Power Supply Feedback Loop", "Highly Accelerated Life Test Method of AC - DC Switching Power Supply", decelerated by Shenzhen Huntkey Electric Co., Ltd, were included in the plan of National Industry Standards Project Developing. Once the project is completed, national power industry standard blank will be filled in.

"Technical Specifications: AC - DC Switching Power Supply Electronic Components Derating" mainly regulated the parameters design margin requirements of kinds of power supply parts such as semiconductor, electrolytic capacitor, transformer, etc.

"Technical Specifications: AC - DC Switching Power Supply Feedback Loop" formulated technical requirements of power feedback loop, which is the main indicator to quantify the stability of power supply.

"Highly Accelerated Life Test Method of AC - DC Switching Power Supply" provided step stress (such as high and low temperature, vibration, etc ) highly accelerated life test method, instead of the traditional high temperature aging test.

Fig. Work letter of drafting industry standards