Q2] A boost dc-dc converter has a forward voltage drop on its diode of 0.7 V. Its switching MOSFET has a resistance of 0.1 ohms when conducting. If the input voltage is 5 V, the average input current is 3.2 Amps, and its duty cycle is 0.4, find the converter’s conduction losses in watts. There are conduction losses in both the switching MOSFET and the diode.
Q2] A boost dc-dc converter has a forward voltage drop on its diode of 0.7 V. Its switching MOSFET has a resistance of 0.1 ohms when conducting. If the input voltage is 5 V, the average input current is 3.2 Amps, and its duty cycle is 0.4, find the converter’s conduction losses in watts. There are conduction losses in both the switching MOSFET and the diode.
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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Q3] For a buck-boost dc-dc converter, show with the help of suitable sketches that with continuous conduction of inductor current:
- a) and
Where are the dc levels of the output and input currents, respectively, and D is the duty-cycle of switching frequency. Assume that all devices and circuit elements are ideal.
- b) If the output voltage of the above buck-boost converter is maintained at , while the input voltage varies in the range of . The switching frequency of the converter is and the capacitor .
- i) Find the duty cycle D, if the inductance the input dc voltage, , and the output current .
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