Design a DC voltage source to maintain fixed, stable 15 V, 13.6 V and 12.2 V DC voltages to different loads. In order to realize this request, a transformer having a primer voltage 220 V AC and a...

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Extracted text: Design a DC voltage source to maintain fixed, stable 15 V, 13.6 V and 12.2 V DC voltages to different loads. In order to realize this request, a transformer having a primer voltage 220 V AC and a seconder voltage 27 V AC (220/27 V AC transformer), some silicon diodes, zener diode and some resistors of 1.5 kN can be considered in design. a) Draw the network b) Explain the tasks of each component and overall operation in your design. c) Calculate load current and power dissipation for zener diode.