A standard technique to handle this problem is to switch windings in the power transformer windings to provide a secondary voltage just above the desired output voltage. The selection is done by a coarse output voltage range switch or by a microcontroller that switches according to the set output volts. I have supplies that use both techniques.A linear power supply would have to dissipate to much.
Bertus
That is not a novice project. Our company (Power Ten) built 2kW power supplies. You can still find some used around the net.hi all. i would like some assistance. I have been given this project a month now and haven't made any head way. if you can help me that would be of a great deal.
the project is to...Build a 10amp 0-180 voltage variable dc supply.
thank you in advance
Without offending anybody, it is truly absurd to think this project could be assigned to anyone without PS design experience and have a result other than catastrophe. You are basically trying to "re invent" a 2KW offline power supply.It is to power dc motors. Was told not to use diodes to rectify but transistors. Now I have to know what transistors can be used, what transformer and what to use to step up the voltage.