Investigate And Simulate DC/DC Buck Regulator By Using LTspice

This paper presents an investigation and simulation of DC/DC buck converter by using LTspice. Buck converter is a converter that is capable of lowering input voltage as an output voltage. Pulse Width Modulation (PWM) signal with constant duty cycle to drive the switch of the converter. Instead of us...

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Main Author: Rashid, Mohd Sharimin
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2018
Subjects:
Online Access:http://eprints.usm.my/53565/1/Investigate%20And%20Simulate%20DCDC%20Buck%20Regulator%20By%20Using%20LTspice_Mohd%20Sharimin%20Rashid_E3_2018.pdf
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author Rashid, Mohd Sharimin
author_facet Rashid, Mohd Sharimin
author_sort Rashid, Mohd Sharimin
collection USM
description This paper presents an investigation and simulation of DC/DC buck converter by using LTspice. Buck converter is a converter that is capable of lowering input voltage as an output voltage. Pulse Width Modulation (PWM) signal with constant duty cycle to drive the switch of the converter. Instead of using the conventional buck converter, this project will replace the normal diode to Schottky’s diode and SMPS. The minimum size of inductor is calculated and the minimum value for the capacitor is calculated and simulated without affecting the circuit overall performance. The buck converter are made of several sub circuit such as comparator, voltage reference, SMPS and ramp voltage. Every sub-circuit are simulated separately and then as a whole. The author also present the simulation results and discussion (in Chapter 4) related to the theoretical aspects. Results shows that the DC/DC buck converter is able to maintain its load current at 1mA and load voltage of 1.32V at input voltage of 1.4V to 6V. The efficiency of the circuit according to the given limit of input voltage is more than 70%.
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spelling usm.eprints-535652022-07-25T02:42:09Z http://eprints.usm.my/53565/ Investigate And Simulate DC/DC Buck Regulator By Using LTspice Rashid, Mohd Sharimin T Technology TK Electrical Engineering. Electronics. Nuclear Engineering This paper presents an investigation and simulation of DC/DC buck converter by using LTspice. Buck converter is a converter that is capable of lowering input voltage as an output voltage. Pulse Width Modulation (PWM) signal with constant duty cycle to drive the switch of the converter. Instead of using the conventional buck converter, this project will replace the normal diode to Schottky’s diode and SMPS. The minimum size of inductor is calculated and the minimum value for the capacitor is calculated and simulated without affecting the circuit overall performance. The buck converter are made of several sub circuit such as comparator, voltage reference, SMPS and ramp voltage. Every sub-circuit are simulated separately and then as a whole. The author also present the simulation results and discussion (in Chapter 4) related to the theoretical aspects. Results shows that the DC/DC buck converter is able to maintain its load current at 1mA and load voltage of 1.32V at input voltage of 1.4V to 6V. The efficiency of the circuit according to the given limit of input voltage is more than 70%. Universiti Sains Malaysia 2018-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53565/1/Investigate%20And%20Simulate%20DCDC%20Buck%20Regulator%20By%20Using%20LTspice_Mohd%20Sharimin%20Rashid_E3_2018.pdf Rashid, Mohd Sharimin (2018) Investigate And Simulate DC/DC Buck Regulator By Using LTspice. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Elektrik dan Elektronik. (Submitted)
spellingShingle T Technology
TK Electrical Engineering. Electronics. Nuclear Engineering
Rashid, Mohd Sharimin
Investigate And Simulate DC/DC Buck Regulator By Using LTspice
title Investigate And Simulate DC/DC Buck Regulator By Using LTspice
title_full Investigate And Simulate DC/DC Buck Regulator By Using LTspice
title_fullStr Investigate And Simulate DC/DC Buck Regulator By Using LTspice
title_full_unstemmed Investigate And Simulate DC/DC Buck Regulator By Using LTspice
title_short Investigate And Simulate DC/DC Buck Regulator By Using LTspice
title_sort investigate and simulate dc dc buck regulator by using ltspice
topic T Technology
TK Electrical Engineering. Electronics. Nuclear Engineering
url http://eprints.usm.my/53565/1/Investigate%20And%20Simulate%20DCDC%20Buck%20Regulator%20By%20Using%20LTspice_Mohd%20Sharimin%20Rashid_E3_2018.pdf
work_keys_str_mv AT rashidmohdsharimin investigateandsimulatedcdcbuckregulatorbyusingltspice