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The design principle of high-reliability stabilized power adapter

source:power adapter     Popular:adapter     release time:2021-06-26 09:27:56     Article author:sznbone    

  The design principle of high-reliability stabilized power adapter

  ①Choose high-performance and high-reliability power adapter components. Targeted testing of certain devices and circuits. Mastering first-hand information is a prerequisite for designing high-reliability power adapters. In this example, the US Vicor company is selected. The produced Vicor power adapter module is used as the main component. The main features of Vicor power adapter module are: adopting "zero current" switching technology, operating frequency up to 2MHIz, high efficiency (80%~90%), high power density (54~100W/ in3), high reliability (MTBF ≥ 1 million hours), adapt to a wide range of input voltage changes, etc. 3

The design principle of high-reliability stabilized power adapter(图1)

  ②Design a regulated power adapter with special requirements. According to needs, the whole machine may propose some non-standard regulated power adapters with special requirements. For example, a fire control machine requires a ±10V precision power adapter, and the stability is not more than 0.1% , The ripple voltage is not more than 2mV, and the temperature coefficient is not more than 0.1mV/℃. For this reason, a high-performance linear regulated power adapter is designed, and the second voltage regulation is performed on the basis of ±15V to obtain a precise ±10V stable power adapter

  ③Reliability design. Emphasis is placed on the design of peripheral circuits and the thermal design of the whole machine, electromagnetic compatibility design and other reliability designs.


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