Abstract
Resonant inductive coupling wireless power transfer (RIC-WPT) is the promising wireless power supply method to mobile applications. It is well-known that the efficiency and the power transfer capability of RIC-WPT systems deeply depend on the quality factor of the receiver-side resonator, which tends to decline by the conduction loss at rectifying diodes. Therefore, the synchronous rectification is one of the effective solutions. However, the unique characteristics of RIC-WPT, that is the weak magnetic coupling between the transmitter-side and the receiver-side resonator, tend to make the introduction of the synchronous rectification difficult. In order to address this issue, this paper newly proposes a self-driven synchronous rectifier controller suitable for RIC-WPT. This synchronous rectifier controller consists of basic analog elements and gate drivers, and no additional power supply is necessary for driving itself. In addition, the controller doesn't require any information from the transmitter-side resonator. Experiments successfully verified the operating principle as well as the efficiency improvement and clarified the usefulness of the synchronous rectifier with proposed controller for practical application of RIC-WPT.
Original language | English |
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Title of host publication | 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1602-1609 |
Number of pages | 8 |
ISBN (Electronic) | 9784886864055 |
DOIs | |
Publication status | Published - Oct 22 2018 |
Event | 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan Duration: May 20 2018 → May 24 2018 |
Other
Other | 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 |
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Country/Territory | Japan |
City | Niigata |
Period | 5/20/18 → 5/24/18 |
Keywords
- magnetic resonant
- propagation delay
- synchronous rectifier
- wireless power transfer
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering