Calculating voltage and current using a diode and an alternating current.

Discussion in 'Homework Help' started by Teee, Nov 21, 2012.

  1. Teee

    Thread Starter New Member

    Nov 11, 2012
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    Given that the positive peak voltage is 5v and negative peak voltage is -5v.

    issue.png

    How would you prove that the graph would eventually be rectified?
    How does the negative half-cycle current and voltage be stopped by the diode when it can also bypass it because it has the correct polarity?
     
  2. tshuck

    Well-Known Member

    Oct 18, 2012
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  3. Teee

    Thread Starter New Member

    Nov 11, 2012
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    0
    but how does the circuit works? At the negative cycle of the Ac voltage, -5 will flow along that blue arrow, then it'll hit the diode but it's at the correct polarity. I don't get how correct polarity gets the voltage rectified.. am I even getting the concepts of AC voltages correct?
     
  4. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
    1,097
    At the negative cycle of the AC voltage current don't flow because diode is reverse-biased. So if no current is flow through resistor and there will be no voltage drop across resistor.
     
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