Question: How to design a power supply circuit with an input voltage of 50V, an output voltage of 12V, and a working current of 800MA?

qianwei

Question: How to design a power supply circuit with an input voltage of 50V, an output voltage of 12V, and a working current of 800MA? [Copy link]

How to design a power supply circuit with an input voltage of 50V, an output voltage of 12V, and an operating current of 800MA? Is there a ready-made chip? Please advise.

chexing

50V should be OK if you connect a current limiting resistor first and then use 7812

jhr9e

Use Google to look up LM2591HV LM2590HV LM2575HV

yfee

This can be done with MP4060, EUP8057, etc. Many power management ICs can achieve 2A. You can also search for many specifications you need on our website.

mutoudonggua

Obviously, dc-dc conversion is needed here.

qs7779

LM2596-12HV or LM2576-12HV

onele

I think the idea on the 5th floor is a good one.