Hi guys , my teacher asked me to design a power conditioning unit like below. Power conditioning block diagram( Circuit Schematics are not mandatory, but as a result it will be evaluated as bonus point) Description: Input Voltage: 28VDC Output Voltage: according to 5 VDC, (Isolated) (10 points) according to 3,3 VDC, (Isolated) (10 points) according to 28 VDC (Isolated) (10 points) I choosed 2 regulators from Digikey for 3V3 and 5V output . But i guess , i must use 28V directly without regulator for 28V output? Or can i use 28V input voltage with some capacitors to eliminate noise . My last question , are they enough for power conditioning unit or something else is required and what does isolated stand for ? No other information about the question is given .