A 95% Peak Efficiency Modified KY (Boost) Converter for IoT with Continuous Flying Capacitor Charging in DCM

Zeng，Wen Liang1; Pan，Caolei1; Lam，Chi Seng1; Sin，Sai Weng1; Zhan，Chenchang2; Martins，Rui P.1

10.1109/A-SSCC53895.2021.9634724

2021

17th IEEE Asian Solid-State Circuits Conference (A-SSCC) - Integrated Circuits and Systems for the Connection of Intelligent Things

978-1-6654-4351-7

Proceedings - A-SSCC 2021: IEEE Asian Solid-State Circuits Conference

1-3

NOV 07-10, 2021

null,Busan,SOUTH KOREA

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

DC-DC converters are required to achieve high efficiency over wide loading range and compact size for loT applications as shown in Fig. 1(a). However, many designs applied more than one control method to satisfy such requirements [1,2,4,5], which demands complex control system that involves mode selection subsystem, causing efficiency penalty and large chip area. The conventional boost converter has discontinuous output current, which degrades efficiency and output voltage ripple. As a hybrid converter with switched capacitor and inductor, the KY converter overcomes the above drawbacks. However, the charging time of the flying capacitor is seriously limited by the inner operation logic in discontinuous conduction mode (DCM) operation, resulting in small output loading capability and low efficiency.

Conferences Capacitors Loading Switches DC-DC power converters Control systems Solid state circuits

其他

英语

CPCI-S ; EI

Science and Technology Development Fund, Macau SAR (FDCT)["120/2016/A3","SKL-AMSV(UM)2020-2022"]

Engineering

Engineering, Electrical & Electronic

WOS:000768220800017

20220611593151

Efficiency ; Internet of things

Electric Components:704.1 ; Data Communication, Equipment and Techniques:722.3 ; Computer Software, Data Handling and Applications:723 ; Production Engineering:913.1

2-s2.0-85124014752

Scopus

1.University of Macau,Macao,Macao
2.Southern University of Science and Technology,Shenzhen,China

Zeng，Wen Liang,Pan，Caolei,Lam，Chi Seng,et al. A 95% Peak Efficiency Modified KY (Boost) Converter for IoT with Continuous Flying Capacitor Charging in DCM[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2021:1-3.