Quality Management of Switching Power Supply

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As an advanced form of power supply, switch mode power supply is widely used in many fields such as industrial automation control, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instruments and meters, medical equipment, LCD displays, etc. due to its small size, light weight, and high efficiency. It is an indispensable power supply method for the rapid development of the electronic information industry today. As the core component of the power supply of electronic and electrical equipment, the stability of the switch power supply directly affects the normal operation of the entire electronic and electrical equipment. Therefore, effective quality management to continuously provide high-quality and reliable switch power supply products has become an important issue for switch power supply production enterprises.

Switching power supply products mainly go through three stages in their lifecycle: pre production, production, and post production. Therefore, the quality management process of switching power supply also includes quality management from pre production to product design and development, quality management from production to manufacturing, and quality management from production to after-sales service.

The design and development process refers to the entire development process of a product before it is officially put into production, including investigation and research, designated solutions, product design, process design, trial production, identification, standardization, and other work content. The product design and development process is the starting link of the product quality formation process, which "inherently" determines product quality and is also the basis and goal of quality management in the production and manufacturing process.

As a professional manufacturer of switch mode power supplies, TDK Lambda attaches great importance to quality management in the design and development process. The company has established a strict design review process, which strictly manages the planning, input, output, review, verification, and confirmation of each stage of design and development from market research, project approval, specification determination, electrical and mechanical design, prototype production, small batch trial production to formal mass production, striving to achieve "research and development of one product, mature one". At the same time, in order to ensure the high reliability of the product, strict high standard reliability tests are conducted on the selected components and the final product in accordance with international standards during the review process of research and development design, to ensure that the product fully meets the customer's reliability requirements.

With good design, there is also a need for a sound production and manufacturing process to transform ideal product designs from drawings into high-quality products that meet customer needs. The quality management of the production and manufacturing process is the main link in achieving design intentions and forming product quality, and also the guarantee for achieving enterprise quality goals. The manufacturing process of a product is an important foundation for the formation of product quality. The goal of the manufacturing process is to not deviate from the design and ensure the quality of design compliance. The task of quality management in the production and manufacturing process is to establish a production system under control, that is, the production process can stably and continuously produce products that meet the design quality. Only when the production system is in a controlled state can the continuity and reproducibility of qualified products be guaranteed