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A student designs a zener shunt regulator to produce a regulatedoutput of 10 V using a zener diode specified to have a 10V drop ata test current of 25mA. Incremental resistance of the zener is 10ohm and minimum diode current =2mA. Given that supply voltage is20V ±25%, and load current can vary between 0mA and20mA, find
(a) Vzo for the zenerdiode
(b) Required series resistance R for zenerdiode
(c) Lineregulation
(d)Change in Vout corresponding to ±25% change inunregulated supply
(e)Loadregulation
(f) Change in Vout corresponding to 0-20mA change in loadcurrent
(g) Zener diode power rating to handle the worst case powerdissipation

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M9870423

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