Magnetic Reset Circuit Design for Zero Induced Effects in Linear Transformer Applications

• Main Author: Muhammad Hafizi bin Ahmed, Muhammad Hafizi
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2010
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://utpedia.utp.edu.my/905/1/muhammad_hafizi_bin_ahmed.pdf; http://utpedia.utp.edu.my/905/
• Institution: Universiti Teknologi Petronas

Magnetic reset circuit (MRC) is designed and applied in linear transformer. Since the conventional transformer utilizes the concept of induced voltage current from primary to secondary sides, magnetic reset circuit is designed so that both sides of windings can be used effectively as voltage and current path without inducing any current or voltage to respective windings. The objective in this project is to design and simulate magnetic reset circuit using PSpice Schematics software. There are three common techniques to reset magnetizing energy and this project only deal with one technique only. All circuits in this project used tertiary winding as based circuit added with MRC. In order to improve the capability of MRC, the clipper is added at respective winding to remove unwanted signal, reduced time delay and smoother output response. The expected outcome from this project is switching frequency 1 MHz with a maximum of 5 Ampere forward current are expected to successfully operate in resonant gate driver (RGD)