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LIGHTWEIGHT PORTABLE POWER SUPPLY WITH VARIABLE OUTPUT VOLTAGE

AHMAD SHOBRI, MUHAMMAD IZKAR (2011) LIGHTWEIGHT PORTABLE POWER SUPPLY WITH VARIABLE OUTPUT VOLTAGE. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Power supply is a device or system that supplies electrical power. Power supply is one of the main pie~:es of test equipment that is required to test any type of component or circuit in the lab. When we are looking at the test equipment in the market, it can be seen that bench top power supplies or lab power supplies are very necessary especially among the students or lecturer but the cost is too expensive. The power supplies those !l.re available in the m!l.rket curterttly also hot portable and heavy in weight. Therefore, the main objective of this project is to produce a lightweight and porli6le power supply with a miriliiium cost, weight, size and cuciiit complexity while also reducing electrical stresses on the semiconductor devices. A new topology is proposed which combirtes the functions of rectifier, Buck-Boost cohverter or known as step-up and step-down converter into a single circuit reducing components used resulting in a unit that is compact, portable, lightweight and cheap. Using a rechargeable 1.2V batteries, the voltage can step up to 5V and 12V by apply the bllCk-bOost method. Thus, with this 12V of voltage, this power supply is able to apply like the bench top power supply or lab power supply. There are many switch mode power supplies that can be used in the lab, but these types of power supplies are not portable and economical for students to purchase. There is a need in the industry for a portable power supply tliat ciiii be used in various locations wlieii AC is not available. This portable lightweight power supply is an alternative for the student who wants a portable power supply with an internal rech!l.rgeable battery to supply the output power. This system has a selling price of under RMl OO.So students can afford the test e<iiiipmeiit wlllcli will last Them tmoiignoiit tlieir college career and iiito Their professional career. The weight is approximately 0.28g compared to bench top power supply which is approximately 6kg.

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Power Systems - Distribution - Power distribution
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 13 Nov 2013 15:44
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10536

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