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rx78

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## Homework Statement

Consider the following power supply circuit, which uses typical component values. The

diodes have a forward drop of 0.6V each. Transformer voltages are RMS (root mean

square).

http://img294.imageshack.us/img294/1665/70454661.png [Broken]

a. Determine the DC output voltage under ‘no load’.

b. Determine the amplitude of the ripple when a current of 200mA is drawn from the

supply.

c. What should the current “rating” of the supply be, if the ripple (peak-to-peak)

must be kept below 1% of the output voltage?

d. Find the average power dissipated in the circuit assuming ω = 300 rad/s.

## Homework Equations

unsure...

## The Attempt at a Solution

Honestly, I'm just not really sure where to actually -start- on this. We barely touched on this material in class and our text (Principles of Electronics Analog and Digital) is fairly lacking in any sort of examples to try to follow the logic. I just need some tips on how to approach this problem from a fundamental standpoint, really, so if you can just give some tips on how to start with it, I can probably carry on.

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