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Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier

Master of Science in Electronic Engineering

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Bibliographic Details
Main Author: Nor Afiqah, Azmi
Other Authors: Sohibul Anuar, Zainol Murad, Ir. Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2018
Subjects:
Electric circuits > Direct current
Electric current converters
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77422
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spelling my.unimap-774222022-12-07T01:14:50Z Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier Nor Afiqah, Azmi Sohibul Anuar, Zainol Murad, Ir. Dr. Electric circuits -- Direct current Electric current converters Master of Science in Electronic Engineering A high dc voltage with low power consumption is used in cryogenic cooling for the purpose of cooling system. In order to accomplish the high dc voltage, numerous efforts are carried out to determine a new method of generating high voltage where the value is higher than the supply voltage. In addition, high voltage dc with low load current particularly affects our society in the application industry used by computers and other electronic devices. Among its applications are plasma generation, dc backs up system, Scanning Electron Microscope (SEM), Photomultiplier Tube (PMT), capacitive microphone, and ultrasonic transducer cooling with less electrical power are required. Besides, a high voltage dc power supply is a critical element therefore must perform consistently. Basically, a high voltage is achieved by implementing a transformer. However, this project proposes building a high dc voltage based on the switching regulator and Cockcroft-Walton (C-W) voltage multiplier without using a transformer. The work aims to achieve a high output dc voltage and low dc current. In the cascaded voltage multiplier circuit, the transformer is the bulkiest part of the high voltage dc power supply unit and most of the losses are associated with it in the previous design. With the existence of a transformer in a high voltage design, it is difficult to integrate the design on a chip. Therefore, the transformer is not used in a construction of 1600 V high dc voltage and low current in this work thus, making it feasible to integrate the high voltage supply with other associated circuits on a single chip. A prototype of high dc voltage power supply is constructed based on a design, simulation and implementation of hardware in a laboratory. In this project firstly a simulation has been launched in which the required parameter is established, and results are gathered through an observation. Then, for an experimental purpose hardware is implemented in a high voltage laboratory. The proposed design consists of Pulse Width Modulation (PWM) controller circuit, voltage multiplier, and feedback signal. A single unit of 5 V input triggers LT1618 controller circuit to generate 30 V which then produces 100 V from LT8331 output that is connected to diode-capacitor multiplier circuit to achieve the final 1600 V with 200 kHz input signal frequency. A negative feedback signal is required to stabilize an output voltage. 2018 2022-12-07T01:14:50Z 2022-12-07T01:14:50Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77422 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Microelectronic Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Electric circuits -- Direct current
Electric current converters
spellingShingle Electric circuits -- Direct current
Electric current converters
Nor Afiqah, Azmi
Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier
description Master of Science in Electronic Engineering
author2 Sohibul Anuar, Zainol Murad, Ir. Dr.
author_facet Sohibul Anuar, Zainol Murad, Ir. Dr.
Nor Afiqah, Azmi
format Thesis
author Nor Afiqah, Azmi
author_sort Nor Afiqah, Azmi
title Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier
title_short Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier
title_full Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier
title_fullStr Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier
title_full_unstemmed Design of DC high voltage low current power supply using DC-DC converter and cockcroft-walton (C-W) voltage multiplier
title_sort design of dc high voltage low current power supply using dc-dc converter and cockcroft-walton (c-w) voltage multiplier
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2018
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77422
_version_ 1753973028273782784
score 13.214268

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