The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
É proposto um sistema de estimativa e regulação de tensão de saída para um circuito de transferência de energia sem fio (WPT). Como a flutuação de uma condição de acoplamento e/ou carga pode variar a tensão fornecida com o WPT, resultando em mau funcionamento de dispositivos alimentados sem fio, a regulação da tensão de saída é necessária. Se a tensão de saída for regulada por um regulador de tensão em um lado secundário do circuito WPT com potência de entrada fixa, o regulador de tensão desperdiça energia para regular a tensão. Portanto, a regulação da tensão de saída utilizando um controle do lado primário, que ajusta a potência de entrada dependendo da carga e/ou da condição de acoplamento, é uma abordagem promissora para uma regulação eficiente. Além disso, é desejável eliminar o circuito de realimentação do lado secundário para o lado primário do ponto de vista de redução da dissipação de energia e da complexidade do sistema. O sistema proposto pode estimar e regular a tensão de saída independente do acoplamento e da variação da carga sem a malha de realimentação. Uma faixa utilizável do coeficiente de acoplamento e da carga foi melhorada em comparação com trabalhos anteriores. A validade do sistema proposto é confirmada pelo simulador SPICE.
Takahiro FUJITA
Meiji University
Kazuyuki WADA
Meiji University
Kawori SEKINE
Meiji University
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Takahiro FUJITA, Kazuyuki WADA, Kawori SEKINE, "An Output Voltage Estimation and Regulation System Using Only the Primary-Side Electrical Parameters for Wireless Power Transfer Circuits" in IEICE TRANSACTIONS on Fundamentals,
vol. E107-A, no. 1, pp. 16-24, January 2024, doi: 10.1587/transfun.2023KEP0013.
Abstract: An output voltage estimation and regulation system for a wireless power transfer (WPT) circuit is proposed. Since the fluctuation of a coupling condition and/or a load may vary the voltage supplied with WPT resulting in a malfunction of wireless-powered devices, the output voltage regulation is needed. If the output voltage is regulated by a voltage regulator in a secondary side of the WPT circuit with fixed input power, the voltage regulator wastes the power to regulate the voltage. Therefore the output voltage regulation using a primary-side control, which adjusts the input power depending on the load and/or the coupling condition, is a promising approach for efficient regulation. In addition, it is desirable to eliminate feedback loop from the secondary side to the primary side from the viewpoint of reducing power dissipation and system complexity. The proposed system can estimate and regulate the output voltage independent of both the coupling and the load variation without the feedback loop. An usable range of the coupling coefficient and the load is improved compared to previous works. The validity of the proposed system is confirmed by the SPICE simulator.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2023KEP0013/_p
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@ARTICLE{e107-a_1_16,
author={Takahiro FUJITA, Kazuyuki WADA, Kawori SEKINE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Output Voltage Estimation and Regulation System Using Only the Primary-Side Electrical Parameters for Wireless Power Transfer Circuits},
year={2024},
volume={E107-A},
number={1},
pages={16-24},
abstract={An output voltage estimation and regulation system for a wireless power transfer (WPT) circuit is proposed. Since the fluctuation of a coupling condition and/or a load may vary the voltage supplied with WPT resulting in a malfunction of wireless-powered devices, the output voltage regulation is needed. If the output voltage is regulated by a voltage regulator in a secondary side of the WPT circuit with fixed input power, the voltage regulator wastes the power to regulate the voltage. Therefore the output voltage regulation using a primary-side control, which adjusts the input power depending on the load and/or the coupling condition, is a promising approach for efficient regulation. In addition, it is desirable to eliminate feedback loop from the secondary side to the primary side from the viewpoint of reducing power dissipation and system complexity. The proposed system can estimate and regulate the output voltage independent of both the coupling and the load variation without the feedback loop. An usable range of the coupling coefficient and the load is improved compared to previous works. The validity of the proposed system is confirmed by the SPICE simulator.},
keywords={},
doi={10.1587/transfun.2023KEP0013},
ISSN={1745-1337},
month={January},}
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TY - JOUR
TI - An Output Voltage Estimation and Regulation System Using Only the Primary-Side Electrical Parameters for Wireless Power Transfer Circuits
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 16
EP - 24
AU - Takahiro FUJITA
AU - Kazuyuki WADA
AU - Kawori SEKINE
PY - 2024
DO - 10.1587/transfun.2023KEP0013
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E107-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2024
AB - An output voltage estimation and regulation system for a wireless power transfer (WPT) circuit is proposed. Since the fluctuation of a coupling condition and/or a load may vary the voltage supplied with WPT resulting in a malfunction of wireless-powered devices, the output voltage regulation is needed. If the output voltage is regulated by a voltage regulator in a secondary side of the WPT circuit with fixed input power, the voltage regulator wastes the power to regulate the voltage. Therefore the output voltage regulation using a primary-side control, which adjusts the input power depending on the load and/or the coupling condition, is a promising approach for efficient regulation. In addition, it is desirable to eliminate feedback loop from the secondary side to the primary side from the viewpoint of reducing power dissipation and system complexity. The proposed system can estimate and regulate the output voltage independent of both the coupling and the load variation without the feedback loop. An usable range of the coupling coefficient and the load is improved compared to previous works. The validity of the proposed system is confirmed by the SPICE simulator.
ER -