Reference to the step down converter given in the figure below, if the input supply is 12v, and if the converter has to provide 3.3V output voltage at 10A maximum current to a load. Ignore the switching losses in the transistor. Assume that the power components have the following parameters: MOSFET : Rps(oN) = 10m2 Resistance of the inductor : Rind(Cu) = 2 m2 Diode forward voltage Vp= 0.5V. ir ip Vsupply D A Load a) Calculate the total conduction losses at full load in the MOSFET, in the diode and in the inductor. Hint: Pconduction = Io² Rps(ON) D + lo Vp (1 – D) + Io² Rmd(Cu) 1-1 b) Calculate the efficiency of the converter. c) Compare and comment on the conduction losses of the MOSFET, the diode and the inductor.
Reference to the step down converter given in the figure below, if the input supply is 12v, and if the converter has to provide 3.3V output voltage at 10A maximum current to a load. Ignore the switching losses in the transistor. Assume that the power components have the following parameters: MOSFET : Rps(oN) = 10m2 Resistance of the inductor : Rind(Cu) = 2 m2 Diode forward voltage Vp= 0.5V. ir ip Vsupply D A Load a) Calculate the total conduction losses at full load in the MOSFET, in the diode and in the inductor. Hint: Pconduction = Io² Rps(ON) D + lo Vp (1 – D) + Io² Rmd(Cu) 1-1 b) Calculate the efficiency of the converter. c) Compare and comment on the conduction losses of the MOSFET, the diode and the inductor.
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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Transcribed Image Text:Reference to the step down converter given in the figure below, if the input supply is 12v, and if the converter
has to provide 3.3V output voltage at 10A maximum current to a load. Ignore the switching losses in the
transistor. Assume that the power components have the following parameters:
MOSFET : Rps(oN) = 10m2
Resistance of the inductor : Rind(Cu) = 2 m2
Diode forward voltage Vp= 0.5V.
ir
ip
Vsupply
D A
Load
a) Calculate the total conduction losses at full load in the MOSFET, in the diode and in the inductor.
Hint: Pconduction = Io² Rps(ON) D + lo Vp (1 – D) + Io² Rmd(Cu)
1-1
b) Calculate the efficiency of the converter.
c) Compare and comment on the conduction losses of the MOSFET, the diode and the inductor.
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