Hybrid Boost Converter

In: Science

Submitted By leongyuhao
Words 3144
Pages 13
The Design and Simulation of Controlled Converter
Circuit for Smart Phone Battery Charger at Rated
1.5A and 3.8V load
Ban Siong Lee1, Kang Yung Yee1, Yoong Xiang Wong1
1

Faculty of Electrical and Electronics Engineering, Universiti Teknologi Petronas, 31750, Perak, Malaysia leebansiong92@gmail.com, ky.christopher@gmail.com, tikuz92@gmail.com

Abstract— There have been increasing demand on low power application over the years, particularly in charging devices for device such as smartphones. A buck converter with controlled
PWM is proposed in this paper to achieve 1.5A and 3.8V load.
This method can ensure that the output current and voltage stay within the satisfactory range. A buck converter with rectified DC voltage of 240V DC as input voltage, and output voltage of 3.8 with 1.5A output current and duty cycle of 0.016 is designed. P pice is used in designing simulation and the results of the circuit have been obtained to verify the operation and performance of the concept. The theoretical calculations are compared with the simulation results. The ripple output voltage and current obtained is relatively low as calculated of around 1%. Losses can be further controlled by adjusting the dead time and duty ratio of the circuit.
Keywords— Full Wave Bridge Rectifier; Buck Converter; DCDC Converter; Smartphone Battery Charger

I.

INTRODUCTION

Portable electronic industry has grown over the years, many different demands has increased for instance, small and cheap systems, photographing and taking video, brighter and fullcolour display and a demand for increased talk-time in cellular phones. As a result, smartphone battery is drained very rapidly with all these demands and consumer always need to charge back their device quickly. Hence, to keep up with these demands from the consumer, a more efficient system must introduce to meet these…...

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