A High speed digital subsystem requires three voltages V₁, V₂ and V₃ with 1 : 2 : 1 power ratings, respectively. The power supply is designed with the distribute power conversion scheme as shown in the following figure. What is the overall power conversion efficiency?

A) $$\frac{{4 \times {\eta _1} \times {\eta _2} \times {\eta _3}}}{{{\eta _2}{\eta _3} + 2 \times {\eta _3} + {\eta _2}}}$$ B) $$\frac{{{\eta _1} \times {\eta _2} \times {\eta _3}}}{{{\eta _2}{\eta _3} + 2 \times {\eta _3} + {\eta _2}}}$$ C) $$\frac{{4 \times {\eta _1} \times {\eta _2} \times {\eta _3}}}{{{\eta _2}{\eta _3} + {\eta _2} + {\eta _3}}}$$ D) $$\frac{{2 \times {\eta _1} \times {\eta _2} \times {\eta _3}}}{{{\eta _2}{\eta _3} + {\eta _2} + {\eta _3}}}$$

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Correct Answer: Option A

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A High speed digital subsystem requires three voltages V1 V2 and...

A High speed digital subsystem requires three voltages V1, V2 and V3 with 1 : 2 : 1 power ratings, respectively. The power supply is designed with the distribute power conversion scheme as shown in the following figure. What is the overall power conversion efficiency?

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A High speed digital subsystem requires three voltages V₁, V₂ and V₃ with 1 : 2 : 1 power ratings, respectively. The power supply is designed with the distribute power conversion scheme as shown in the following figure. What is the overall power conversion efficiency?