After i searched all the forum for power supply schematics and no founding them (dead links), i decided to send this post.
I'm looking for a power supply bench able to give 0-30V 0-10A output with current limmiting capability
Most practical way is to change the AC voltage into DC (Full wave rectifier with or wmithout stepping down), then design a buck converter to take the votlage down to 30V. It is a common power electronics circuit. You have to choose FET switches/heatsink to handle so much of current. Current limiting should not be a big deal if you will be able to realize this circuit. Open any power electronic text book for circuit reference.