DC power supply redundancy module
Thread Content
Low-power DC power supplies should be configured redundantly, and diode isolation can be employed. For high power levels, it is necessary to consider adding dedicated redundant modules. Everyone please propose or discuss specific solutions, such as: redundancy configurations for levels below 1A, below 5A, 10A class, and 20A class; as well as the internal circuit principles of the redundant modules and their main components. 2. Can DC power supplies of different brands and powers be combined using redundant modules? 3. Does the DC power supply require an appropriate increase in output voltage, and can the output voltage of mainstream DC power supplies be adjusted easily?
Redundant power supplies are specialized and cannot be replaced with ordinary power supplies. When using diode isolation, the main considerations are the power dissipation of the diodes and their reliability and lifespan. Redundancy exists to achieve higher reliability; if the approach adopted itself lacks reliability, then redundancy holds little significance.
In fact, the redundancy module of the power supply consists of just a few diodes. It’s just that the redundant module also includes other functions
The advantage of redundancy lies in reliability and stable quality. We use high voltages, and normal values below 4A are sufficient for proper operation; however, it is still recommended to have a margin, as the greater the margin, the more reliable it is. We normally use ratings of 2A or less; here we have chosen modules with a rating of 4.5A and a voltage tolerance of 300V, to be used with 110V DC relay power supplies. For reference, this model is “DIODE/4522“. It’s available for sale on Taobao.
What principles or components are used for high-power redundancy? Illustrations are better!