Design of a High Efficiency Bi-Directional Four-Switch Buck-Boost Converter With HV Gate Driver for Multi-Cell Battery Power Bank Applications
Year: 2025
Type: article
Abstract: This paper presents a bidirectional Four-Switch Buck-Boost (FSBB) converter with a high-voltage (HV) gate driver for use in power bank applications. The proposed FSBB is also integrated into this converter for increased efficiency. Thus, the proposed buck-boost converter can reduce conduction loss over a wide input voltage range by reducing the on-resistance of external MOSFETs using a gate source voltage (VGS) of 5V or 10V. The chip to be examined in this study is fabricated using a 130 nm 1P5M bipolar-CMOS-DMOS HV process with laterally diffused MOSFET (LDMOS) options to have a die size of 2.7 × 2.7 mm2. The proposed architecture is found to achieve a maximum output power level of 40W. The measurement results show that the maximum efficiencies at gate-source voltages (VGS) of 5V and 10V are 96.67% and 98.15%, respectively.
Authors: Sung-June Byun, Byeong-Gi Jang, Jong-Wan Jo, Dae-Young Choi, Young-Gun Pu, Sang-Sun Yoo, Seok-Kee Kim, Yeon-Jae Jung, Kang-Yoon Lee
Institution: Sungkyunkwan University
Language: English
Topic: Advanced DC-DC Converters
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,075
OpenAlex ID: W4409152787