Theme: 48v automated Power Supply Sources. Plan 48 volt: what it is and why it’s important

Figure 2 has a 48V output and can deliver current up to 1 ampere, enough to power a system with two ports. L2 and C8 form a post filter to further reduce the ripple voltage below 50mV. A switching frequency of 400kHz was chosen as a compromise between switching loss and the size of inductor L1. Increasing the value of gate resistance R7 will reduce EMI noise, but increase switching loss. A value of 2.0Ω was chosen. At an input voltage of 12V, a full load of 1 ampere and an output of 48V, the peak-peak voltage ripple was 36mv with a conversion efficiency of 91%.

Conclusion

By doing the assignment I have learnt a lot of useful information about 48V power supply and have found out a lot of useful references about 48V like , what is it and why it is important for the future and I tried to show off the useful parts of the theme.In the end, I gave some information about 48 V IP phones. In preparing these I used the following sites which I referenced at the end of the assignment.By the way,in preparing this assignment I have not used Uzbek language because you know ,there is very little information in Uzbek .That is why I have decided to use English and discover so much references about the assignment.

Used literatures

• 
  https://www.dalroad.com/resources/48-volt-what-it-is-and-why-its-important/.
  
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  https://www.autocar.co.uk/car-news/technology/under-skin-why-modern-cars-need-48v-electrical-systems
  
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  https://www.avnet.com/wps/portal/abacus/resources/article/the-shift-to-48v-in-automotive-systems/