Hi guys. Im trying to design a simple power supply using a half wave rectifier and a voltage regulator. The aim is to produce a output dc voltage of 2.8 V and maximum current of 430mA. I got the voltage but the current never reaches 430mA. if it did the voltage will be higher than 2.8 V. ive attached my circuit to see if i made any mistakes. the power supply is low AC with 50 Hz so i take it to be 5. The D2 diode has a breakdown voltage of 2.8 so it's a must. the values of other components are just my guessing to produce the required current and voltage. So any advice would be appreciated.
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