A single-inductor triple-input-triple-output (SITITO) energy harvesting interface with cycle-by-cycle source tracking and adaptive peak-inductor-current control

Chi Wei Liu, Ming Jie Chung, Hui Hsuan Lee, Pei Chun Liao, Po-Hung Chen

研究成果: Conference contribution同行評審

6 引文 斯高帕斯(Scopus)

摘要

In this paper, a single-inductor triple-input-triple-output (SITITO) buck-boost converter with cycle-by-cycle source tracking (CCST) is developed for multi-source energy harvesting. The proposed CCST is capable of harvesting power from the PV and TEG simultaneously, and automatically selects the appropriate source according to the maximum power point (MPP) of the transducers in each switching cycle. The converter provides two regulated outputs for the analog (Vout1 = 1.2 V) and the digital (Vout2 = 0.4-0.6 V) circuits, while storing the excess energy in a storage capacitor (Cout3). An adaptive on-time (AOT) circuit with an adaptive peak-inductor-current (APIC) control is developed for dynamically adjusting the on-time based on the input voltage (VIN) to obtain high conversion efficiency under different VIN. The proposed converter achieves a peak efficiency of 84.4% with an available input voltage of 0.05 V to 0.8 V. Compared to the conventional constant peak-inductor-current (CPIC) control, the proposed APIC improves 11 % efficiency at low Vin.

原文English
主出版物標題2017 IEEE Asian Solid-State Circuits Conference, A-SSCC 2017 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
頁面113-116
頁數4
ISBN(電子)9781538631782
DOIs
出版狀態Published - 6 11月 2017
事件2017 IEEE Asian Solid-State Circuits Conference, A-SSCC 2017 - Seoul, Korea, Republic of
持續時間: 6 11月 20178 11月 2017

出版系列

名字2017 IEEE Asian Solid-State Circuits Conference, A-SSCC 2017 - Proceedings
2017-January

Conference

Conference2017 IEEE Asian Solid-State Circuits Conference, A-SSCC 2017
國家/地區Korea, Republic of
城市Seoul
期間6/11/178/11/17

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