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(a) Differentiate the difference and advantage of the synchronous buck converter with a typical buck converter circuit.

(a) Differentiate the difference and advantage of the synchronous buck converter with a typical buck converter circuit.

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
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The given converterhas the following requirements: Vin: 250V Vout: 50V regulated Load power: 200W Switching frequency: 100kHz Max. output ripple: 20mV Q1 G1 ↑ Vin Q2 Vn Vout ЛG2 ↑ (a) Differentiate the difference and advantage of the synchronous buck converter with a typical buck converter circuit. L1 HH C1
Transcribed Image Text:The given converterhas the following requirements: Vin: 250V Vout: 50V regulated Load power: 200W Switching frequency: 100kHz Max. output ripple: 20mV Q1 G1 ↑ Vin Q2 Vn Vout ЛG2 ↑ (a) Differentiate the difference and advantage of the synchronous buck converter with a typical buck converter circuit. L1 HH C1
QUESTION 1 Design a high efficiency 3.3 V, 5A d.c.to d.c. power converter from a 4 to 5.5 Vdc source. The maximum allowable inductor current ripple and output voltage ripple are 0.1A and 20 mV, respectively. Assume a switching frequency of 20 kHz. a) Design a suitable converter power circuit using a MOSFET switch, showing all calculation of inductor and capacitor values and drawing a circuit diagram of the final design including component values. Indicate the peak inverse voltage and forward current rating of any diode required, and the maximum drain- source voltage of the MOSFET. b) On the Schematic diagram, draw the path of the current flow during the ON time and the OFF time. c) Describe the effect of changing the values of the inductor and the capacitor in the circuit. d) What is the effect of switching frequency in the circuit? e) Draw the schematic diagram of a circuit with the output voltage higher than the input voltage.
Transcribed Image Text:QUESTION 1 Design a high efficiency 3.3 V, 5A d.c.to d.c. power converter from a 4 to 5.5 Vdc source. The maximum allowable inductor current ripple and output voltage ripple are 0.1A and 20 mV, respectively. Assume a switching frequency of 20 kHz. a) Design a suitable converter power circuit using a MOSFET switch, showing all calculation of inductor and capacitor values and drawing a circuit diagram of the final design including component values. Indicate the peak inverse voltage and forward current rating of any diode required, and the maximum drain- source voltage of the MOSFET. b) On the Schematic diagram, draw the path of the current flow during the ON time and the OFF time. c) Describe the effect of changing the values of the inductor and the capacitor in the circuit. d) What is the effect of switching frequency in the circuit? e) Draw the schematic diagram of a circuit with the output voltage higher than the input voltage.
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