Transient response

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Design and Stability Analysis of the Variable-Sawtooth-Based PWM Controller for the AC-Coupled Envelope Tracking Supply Modulator

Design and Stability Analysis of the Variable-Sawtooth-Based PWM Controller for the AC-Coupled Envelope Tracking Supply Modulator 150 150
Author(s): Peng Xu, Tao Wang, Xueli Zhang, Peng Cao, Jiawei Xu, Zhiliang Hong

Abstract:

This letter analyzes the proposed variable-sawtooth-based PWM controller for the ac-coupled envelope tracking (ET) supply modulator (SM). The ET SM includes a linear amplifier and a switching power modulator (SPM). The SPM maintains the voltage across the ac-coupling capacitor and provides an output current in a power-efficient manner. A 10-MHz …

Published in: IEEE Solid-State Circuits Letters
Page(s): 151 – 154
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3384345
Publisher: IEEE

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A 2.8 $\mu$ s Response Time 95.1% Efficiency Hybrid Boost Converter With RHP Zero Elimination for Fast-Transient Applications

A 2.8 $\mu$ s Response Time 95.1% Efficiency Hybrid Boost Converter With RHP Zero Elimination for Fast-Transient Applications 150 150
Author(s): Junyi Ruan, Junmin Jiang, Chenzhou Ding, Yunxiao Li, Yanhui Wu, Ka Nang Leung, Xun Liu

Abstract:

This article proposes a hybrid boost converter that eliminates the right-half-plane (RHP) zero. The proposed converter can be designed with a broad bandwidth up to a tenth of the switching frequency, such that the converter can attain fast transient response as a buck converter. Besides, it features a left-half-plane zero …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3376251
Publisher: IEEE

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