IEICE TRANSACTIONS on Fundamentals
An Output Voltage Estimation and Regulation System Using Only the Primary-Side Electrical Parameters for Wireless Power Transfer Circuits
Summary :
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.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E107-A No.1 pp.16-24
- Publication Date
- 2024/01/01
- Publicized
- 2023/07/24
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.2023KEP0013
- Type of Manuscript
- Special Section PAPER (Special Section on Circuits and Systems)
- Category
Authors
Takahiro FUJITA
Meiji University
Kazuyuki WADA
Meiji University
Kawori SEKINE
Meiji University
Keyword
Latest Issue
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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},}
Copy
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 -
English
