A Novel Buck Converter with Dual Loops Control Mechanism

doi:10.3390/electronics11081256

機構典藏 > College of Engineering > Graduate Institute & Department of Electrical Engineering > Journal Article > Item 987654321/126204

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/126204

Title:	A Novel Buck Converter with Dual Loops Control Mechanism
Authors:	Chou, Hsiao-Hsing;Luo, Wen-Hao;Chen, Hsin-Liang;Wang, San-Fu
Keywords:	adaptive on time (AOT);peak current mode (PCM);current mode control (CMC);voltage mode control (VMC);average current mode (ACM);constant on time (COT)
Date:	2022-04-13
Issue Date:	2024-09-20 12:05:56 (UTC+8)
Abstract:	This paper presents a novel buck converter with dual-loop control technology, which does not need to detect the inductor current directly. The structure of the control loops is easy to implement, one loop controls the output voltage, and the other controls the switching frequency. With the dual loops control mechanism, the output voltage and switching frequency can be accurately controlled only by measuring the output and input voltage, without sensing the inductor current. The buck converter can generate an output voltage of 1.0–2.5 V when the input voltage and load current are 3.0–3.6 V and 100–500 mA, respectively. The design was verified by SIMPLIS. The simulation results show that the switching frequency variation is less than 1% at the output voltage of 1.0–2.5 V. The recovery time is less than 1.5 μs during the load change. The circuit can be fabricated by using the TSMC 0.35μm 2P4M CMOS processes. The control scheme, theoretical analysis and circuit implementation are presented in this paper.
Relation:	Electronics , 11(8)
DOI:	10.3390/electronics11081256
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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