分享一篇参与的四相位直流升压变换器TCASI

胡道擦

A Single-Stage Four-Phase Hybrid Boost Converter With 11-to-20 VCRs for LiDAR Driver Applications                               

Item Type	Journal Article
Abstract	This paper presents a monolithic single-stage, 4-phase switched-capacitor (SC) hybrid boost converter with 11-to- 20\times voltage conversion ratios (VCRs). The 4-phase operating SC hybrid topology is proposed to achieve high VCRs with only three flying capacitors and one inductor. With the SC topology, the average inductor current and the inductor current ripple are much reduced, releasing both power loss and size requirement for the inductor. A four-phase pulse width modulation (PWM) controller is proposed. A successive ramp generation scheme ensures identical pulse widths across three consecutive phases. A driver-assisted auxiliary charge pump provides sufficient driving voltages for the high-side driver and simplifies the overall circuitry. The proposed hybrid boost converter was implemented in a 0.18 \mu m process. The measurement results show that the converter achieved a 20-24V output voltage range with a 1.2-1.8 V input voltage. 76.7% peak efficiency was achieved at 13\times VCR and power density was 12 mW/mm3.
Date	2025
Library Catalog	IEEE Xplore
URL	https://ieeexplore.ieee.org/document/11048654/
Accessed	6/25/2025, 5:03:36 PM
Pages	1-11
Publication	IEEE Transactions on Circuits and Systems I: Regular Papers
DOI	10.1109/TCSI.2025.3580499
ISSN	1558-0806
	不增加电容的数量，如何提高拓扑的升压比，这篇文章提供了一个可能性。

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icroad

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