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The MOSFET has on-resistance

The MOSFET has on-resistance

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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To reduce the switching harmonics present in the input current of a certain buck converter, an input filter is added as shown in Fig. 3.33. Inductors L, and L₂ contain winding resistances R₁ and R₁2, respec- tively. The MOSFET has on-resistance Ron and the diode forward voltage drop can be modeled by a constant voltage Vplus a resistor Rp. All other losses can be ignored. 4₁ RLI V₂ 4₂ + i₂ IT C₁ VCI D₁ Fig. 3.33 Buck converter with input filter, Problem 3.6. (a) (b) (c) R₁2 C₂ + V Derive a complete equivalent circuit model for this circuit. Solve your model to find the dc output voltage V. Derive an expression for the efficiency. Manipulate your expression into a form similar to Eq. (3.35).
Transcribed Image Text:To reduce the switching harmonics present in the input current of a certain buck converter, an input filter is added as shown in Fig. 3.33. Inductors L, and L₂ contain winding resistances R₁ and R₁2, respec- tively. The MOSFET has on-resistance Ron and the diode forward voltage drop can be modeled by a constant voltage Vplus a resistor Rp. All other losses can be ignored. 4₁ RLI V₂ 4₂ + i₂ IT C₁ VCI D₁ Fig. 3.33 Buck converter with input filter, Problem 3.6. (a) (b) (c) R₁2 C₂ + V Derive a complete equivalent circuit model for this circuit. Solve your model to find the dc output voltage V. Derive an expression for the efficiency. Manipulate your expression into a form similar to Eq. (3.35).
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