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post #1 of 3 (permalink) Old 10-24-05, 07:54 AM Thread Starter
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Question Any expert know how to solve this rectifier problems?

Currently doing a rectifier practice exercises. But, I have two problems in doing it.

Can experts here give me some guides please?

The diagram 1 and 2 show the 1-phase Half wave and Full wave bridge rectifier configurations respectively.

See the two attachment files.



Assume that the diodes are perfect diodes i.e. the diode
on-state voltage drop is negligible.



My two problems,

I want to plot the Vp, Vs, VR and IR from 0 to 20ms and calculate the de voltage across the resistor R. Can experts here guide me?


Really hoping experts here could give me some guides about this two problems.
Thax you.
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post #2 of 3 (permalink) Old 10-25-05, 06:26 AM
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Re: Any expert know how to solve this rectifier problems?

The frequency used in your schematics specifies 50 Hz, so the plot period of 0 - 20ms will equal 1 complete cycle. I would assume it is a sine wave and plot 5 points, 0, 5, 10, 15 and 20 ms. Your transformer ratios will give you the secondary voltage for your calculation, and Ohms law will sort out Ir.
Also RMS = .707 of PP, but I sure you already know this

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post #3 of 3 (permalink) Old 10-26-05, 12:25 AM
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Re: Any expert know how to solve this rectifier problems?

If you are still stuck, try this group:

http://groups.google.com.au/group/sc...tronics.design

They fixed me up with a circuit to make my 1970 fuel sender work with a 1986 dash - in very quick time too
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