didoe

general qn how will the circuit act to this will d1 be open ckted can anyone help i am using oa79 diode breakdown is .3

Given a zener of 4.7V with a knee current of 1mA and a maximum power dissipation of 1W . Design a regulated power supply to deliver a load current ranging from 0 to 50 mA. Given an AC Supply of 230 Vrms , 50 Hz . Design an auxiliary Circuit which gives an output ranging from 8 to 8.4V i saw...