NDLI: Active zero voltage switching tracking controller design for class E inverter to counteract the resonant components shifting

Content Provider	IET Digital Library
Author	Li, Yen Fang
Abstract	On the basis of zero voltage switching (ZVS) operation, the class E resonant converter provides excellent conversion efficiency even though it works on high frequency. Unfortunately, the ZVS operation is sensitive to the circuit situations. While the circuit components are shifting, the ZVS working will drift around the dominant point and it may fail to work on ZVS. In this study, an active ZVS tracking control method is proposed to cope with the circuit components shifting. On the basis of an exact analysis of the ZVS operation conditions, first a searching procedure is proposed to decide the optimal switching frequency. Next, through the current phase feedback, the active ZVS tracking controller is built to retain the circuit works on optimum ZVS operation by adaptively tuning the switching frequency to counteract the components shifting. In addition to the theoretical analysis and computer simulation, the proposed tracking controller has been applied to implement a 1.3 MHz class E inverter with a field-programmable gate array (FPGA)-based controller.
Starting Page	2016
Ending Page	2025
Page Count	10
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 10, Oct (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0310
Journal	IET Power Electronics
Publisher Date	2015-08-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Zero Voltage Switching Tracking Controller Design Active ZVS Tracking Control Method Circuit Analysis Computing Circuit Component Shifting Circuit Feedback Class E Inverter Class E Resonant Converter Computer Simulation Computer-Aided Circuit Analysis And Design Control Engineering Computing Control of Electric Power System Control System Analysis Control System Synthesis Conversion Efficiency Current Phase Feedback Electronic Engineering Computing Field Programmable Gate Array FPGA-based Controller Frequency 1.3 MHz Logic And Switching Circuit Logic Circuit Optimal Switching Frequency Power Electronics Power Supply Resonant Component Shifting Resonant Invertors Supervisory Circuit Synthesis Method Zero Voltage Switching
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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