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Engineering · Electrical Engineering
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Q2. (20) The circuit seen in fig. 2 is to operate with an output voltage Vo(t) = 120 kVdc driving a power resistor of RL-10 MO. Assume that the transformer is ideal operating at f:50 Hz, and neglect the voltage drops of 0.7 V over the rectifier diodes a) (02) Explain briefly the role of the circuit seen in fig. 2 and its possible applications b) (06) Find the dc power Pi transferred over the load R c) (07) Find a mathematical expression for the cascaded stage number n in terms of the given total ripple voltage 6Vtot, freq. f, current drawn by the load 11 and capacitors C. (hint: you might use a definition as Then, assume that the total ripple voltage over the output voltage is measured as δ¼ot-1.7818 kV in a circuit having all-identical capacitors of C-2200 nF. Calculate n using the formula you have derived (05) Using n you have found in part d), find the total voltage drop AV. d) L 17 0 a.с. ut 7 7 Fig.2.

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