Design Proposal for Inductor Type Buck Converter in Bluetooth Receiver Chip with Overshoot Cancellation and Ripple Reduction Technique-Reference-Cited by-同舟云学术

Design Proposal for Inductor Type Buck Converter in Bluetooth Receiver Chip with Overshoot Cancellation and Ripple Reduction Technique

Published:2020-11 Issue: Volume:38 Page:179-191
ISSN:2234-991X
Container-title:Advanced Engineering Forum
language:
Short-container-title:AEF

Author:

Tran Minh Tri¹,Sun Yi Fei¹,Kobori Yasunori¹,Kuwana Anna¹,Kobayashi Haruo¹

Affiliation:

1. Gunma University

Abstract

This paper presents a novel circuit design technique for an inductor type step-down buck converter in a blue-tooth receiver. Based on the superposition principle, a model of this system is proposed and verified by simulation. The overshoot phenomena is well controlled when R, L and C components are chosen by a relation |ZL|=|ZC|=2R based on a balanced charge and discharge time condition T=2π√LC=4πRC. Furthermore, a fundamental harmonic notch filter is recommended to keep small ripple which is designed at the fundamental harmonic frequency of PWM signal. A battery supply voltage of 3.6V was applied to the converter and the output voltage was set to 1.8V. The design of this methodology is given through the CMOS technology. As a result, a 1.8V stable step-down buck converter is designed for a blue-tooth low-IF receiver which the ripple is smaller than 0.2mVpp.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AEF.38.179.pdf

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