I want to create a 600W 48 VDC power supply with input taken from the line (220VAC) and so far the steps that I've had in my mind are:
- Stepping-down the voltage to 15V using transformer with 3A current rating.
- Rectify using bridge diodes.
- Use 4 pcs. of LM7812 (linear voltage regulator with 12VDC output) to generate 4 12VDC voltage source.
- Connect the output of LM7812 in series to produce 48VDC voltage regulator.
Will this method works or is there any flaws in the method I have? Is there any better method? Any suggestions are welcome.