Voltage regulation with a zener diode

Discussion in 'Homework Help' started by Billy_O, Apr 22, 2010.

  1. Billy_O

    Thread Starter New Member

    Apr 22, 2010
    3
    0
    Voltage regulation can be achieved using a zener diode connected in:
    A) Parallel with the filter output forward bias
    B) Parallel with the filter output reverse bias
    C) Series with the filter output forward bias
    D) Series with the filter output reverse bias
    Thanks.
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,699
    907
    With forward bias, zeners conduct like a regular diode. Think of your circuit with a diode attached like that. Will that give regulation or just a plain short?

    With reverse bias, they start conducting at their rated voltage. As that current increases, where does the regulation (voltage drop) come from? Would it happen with a resistor in series or in parallel?

    John
     
Loading...