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  #1  
Old 07-02-2009, 03:21 AM
Petrucciowns Petrucciowns is offline
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Default Half-Wave Rectifier Average Diode Current

http://img12.imageshack.us/img12/7084/helpphg.jpg


In the image shown above how is the average diode current calculated? This is an old homework assignment and I'm taking notes. I would appreciate any help.

Thank you.
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Old 07-02-2009, 07:55 AM
vvkannan vvkannan is offline
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Hi Petrucciowns,

The average load voltage divided by the load resistance will give you the average load current which is the average diode current.
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Old 07-02-2009, 06:12 PM
Petrucciowns Petrucciowns is offline
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Thanks for the reply,

Hm, I know that is how to find the peak diode current, but the average diode current is different. How is the average diode current found? I tried to see if it was the same value in RMS but that is not correct. So I'm stumped.
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Old 07-02-2009, 10:17 PM
Jony130 Jony130 is offline
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To find a average voltage, you have to finding the area under the output curve over a full cycle (2∏)
So you need to calculate the definite integral from 0 to ∏, to find area under the curve.
And then:
Vavg=area/2∏=1/2∏*∫Vpsinθ dθ =Vp/∏
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  #5  
Old 07-02-2009, 10:49 PM
Petrucciowns Petrucciowns is offline
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Awesome that was exactly what I was looking for.

Thanks
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