UM
A reconfigurable cross-connected wireless-power transceiver for bidirectional device-to-device charging with 78.1% total efficiency
Fangyu Mao1; Yan Lu1; Seng-Pan U1,2; Rui P. Martins1,3
2018
Conference Name65th IEEE International Solid-State Circuits Conference ISSCC
Source PublicationDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Pages140-142
Conference DateFEB 11-15, 2018
Conference PlaceSan Francisco, CA, United states
Author of SourceInstitute of Electrical and Electronics Engineers Inc.
Other Abstract

Wireless power transfer (WPT) via inductive coupling is a convenient way to charge power-starved portable/wearable devices. Recently, device-to-device (D2D) wireless charging was demonstrated [1,2], which expands the range of WPT applications. Different from the traditional wireless charging, which obtains its energy from the AC mains and has virtually unlimited energy, the D2D charging sources power from an energy-constrained battery. Therefore, achieving the maximum-efficiency transfer is a key design issue. A zero-voltage-switching (ZVS) Classy receiver with maximum efficiency tracking, but using several off-chip passives, was designed in [1] to improve the rectifier and coupling-link efficiencies for unidirectional D2D wireless charging. In [2], a reconfigurable wireless-power transceiver (TRX) with the maximum-current charging mode was proposed to turn a WPT receiver (RX) into a WPT transmitter (TX) with negligible additional hardware, which enabled the bidirectional D2D wireless charging. However, the TX mode efficiency and maximum output power in [2] are relatively low, and its WPT distance is short. © 2018 IEEE.

DOIhttp://doi.org/10.1109/ISSCC.2018.8310223
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000459205600052
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Citation statistics
Cited Times [WOS]:6   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.University of Macau, China;
2.Synopsys Macau, China;
3.Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Fangyu Mao,Yan Lu,Seng-Pan U,et al. A reconfigurable cross-connected wireless-power transceiver for bidirectional device-to-device charging with 78.1% total efficiency[C]//Institute of Electrical and Electronics Engineers Inc.,2018:140-142.
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