Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer

This paper proposes a 5.8 GHz highly efficient rectifier design using harmonic termination for wireless power transfer. The diode used to convert the received RF power to DC is a non-linear device, and a harmonic component is generated, which causes performance degradation. Therefore, in this paper,...

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Autores principales:	Juwan Kim, Inho Park, Hyunchul Ku
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	5.8 GHz wireless power transfer harmonic termination filter N-stage harmonic terminated voltage multiplier (N-stage HTVM) Technology T
Acceso en línea:	https://doaj.org/article/5db5c813f09846e9aa7351c85cef2f76
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spelling	oai:doaj.org-article:5db5c813f09846e9aa7351c85cef2f762021-11-11T15:58:37ZDesign of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer10.3390/en142172031996-1073https://doaj.org/article/5db5c813f09846e9aa7351c85cef2f762021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7203https://doaj.org/toc/1996-1073This paper proposes a 5.8 GHz highly efficient rectifier design using harmonic termination for wireless power transfer. The diode used to convert the received RF power to DC is a non-linear device, and a harmonic component is generated, which causes performance degradation. Therefore, in this paper, we designed a band stop filter for harmonic termination and proposed the N-stage harmonic terminated voltage multiplier (N-stage HTVM). The number of stages N can be designed differently to operate with high efficiency at various input powers for the proposed rectifier. In the proposed rectifier circuit, mathematical analysis of output DC voltage, power loss of the diode, and the power conversion efficiency (PCE) were evaluated through voltage/current waveform analysis of the diode. The design method of the filter for terminating harmonics is presented. Furthermore, the change of PCE according to the increase in the number of stages was analyzed using the equivalent model of the proposed circuit and verified through measurement. The maximum PCE of one-stage HTVM was 68% when 18 dBm of input power was applied. The DC output voltage was measured to 11.6 V. When the RF input power was 25 dBm and the load was 1500 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Ω</mo></semantics></math></inline-formula>, the maximum PCE of the two-stage HTVM was 71% and the maximum DC output voltage was measured as 15.8 V. The measured performance of three-stage HTVM had a PCE of 67% and DC output voltage of 19.8 V when the input power was 30 dBm.Juwan KimInho ParkHyunchul KuMDPI AGarticle5.8 GHz wireless power transferharmonic terminationfilterN-stage harmonic terminated voltage multiplier (N-stage HTVM)TechnologyTENEnergies, Vol 14, Iss 7203, p 7203 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	5.8 GHz wireless power transfer harmonic termination filter N-stage harmonic terminated voltage multiplier (N-stage HTVM) Technology T
spellingShingle	5.8 GHz wireless power transfer harmonic termination filter N-stage harmonic terminated voltage multiplier (N-stage HTVM) Technology T Juwan Kim Inho Park Hyunchul Ku Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer
description	This paper proposes a 5.8 GHz highly efficient rectifier design using harmonic termination for wireless power transfer. The diode used to convert the received RF power to DC is a non-linear device, and a harmonic component is generated, which causes performance degradation. Therefore, in this paper, we designed a band stop filter for harmonic termination and proposed the N-stage harmonic terminated voltage multiplier (N-stage HTVM). The number of stages N can be designed differently to operate with high efficiency at various input powers for the proposed rectifier. In the proposed rectifier circuit, mathematical analysis of output DC voltage, power loss of the diode, and the power conversion efficiency (PCE) were evaluated through voltage/current waveform analysis of the diode. The design method of the filter for terminating harmonics is presented. Furthermore, the change of PCE according to the increase in the number of stages was analyzed using the equivalent model of the proposed circuit and verified through measurement. The maximum PCE of one-stage HTVM was 68% when 18 dBm of input power was applied. The DC output voltage was measured to 11.6 V. When the RF input power was 25 dBm and the load was 1500 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Ω</mo></semantics></math></inline-formula>, the maximum PCE of the two-stage HTVM was 71% and the maximum DC output voltage was measured as 15.8 V. The measured performance of three-stage HTVM had a PCE of 67% and DC output voltage of 19.8 V when the input power was 30 dBm.
format	article
author	Juwan Kim Inho Park Hyunchul Ku
author_facet	Juwan Kim Inho Park Hyunchul Ku
author_sort	Juwan Kim
title	Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer
title_short	Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer
title_full	Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer
title_fullStr	Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer
title_full_unstemmed	Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer
title_sort	design of a highly efficient n-stage harmonic terminated voltage multiplier for wireless power transfer
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5db5c813f09846e9aa7351c85cef2f76
work_keys_str_mv	AT juwankim designofahighlyefficientnstageharmonicterminatedvoltagemultiplierforwirelesspowertransfer AT inhopark designofahighlyefficientnstageharmonicterminatedvoltagemultiplierforwirelesspowertransfer AT hyunchulku designofahighlyefficientnstageharmonicterminatedvoltagemultiplierforwirelesspowertransfer
_version_	1718432415983075328

Design of a Highly Efficient N-Stage Harmonic Terminated Voltage Multiplier for Wireless Power Transfer

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