A New Control Scheme for the Buck Converter-Reference-Cited by-同舟云学术

A New Control Scheme for the Buck Converter

Published:2023-02-03 Issue:3 Volume:13 Page:1991
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Chou Hsiao-Hsing¹^ORCID,Chen Jian-Yu²,Tseng Tsung-Hu²,Yang Jun-Yi²,Yang Xuan²,Wang San-Fu³

Affiliation:

1. Department of Computer Science and Information Engineering, National Taichung University of Science and Technology, Taichung 404336, Taiwan

2. Department of Communication Engineering, National Penghu University of Science and Technology, Penghu, Magong City 880011, Taiwan

3. Department of Electronic Engineering, National Chin-Yi University of Technology, Taichung 411030, Taiwan

Abstract

In this paper, a new control scheme for buck converters was proposed. The buck converter utilizes the dual control loop to improve transient response and has the constant switching frequency. The control scheme is mainly as follows: (a) The switch-ON time is regulated by the constant frequency mechanism. (b) The switch-OFF time is regulated by the output voltage. The spec/features of the proposed converter are listed as: (1) The buck converter has an output of 1.0–2.5 V for the input of 3.0–3.6 V. The load current ranges from 100 mA to 500 mA. (2) The actual current sensor is not required. (3) The simulation results show that the recovery time is less than 1.6 μs during load changes. (4) The variation in switching frequency is smaller than 1.05% over the output range of 1.0–2.5 V. (5) This circuit can be fabricated in future by UMC 0.18 μm 1P6M CMOS processes. This paper depicts the control scheme, theoretical analysis, and implementation.

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Link

https://www.mdpi.com/2076-3417/13/3/1991/pdf

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