TY - GEN
T1 - Maximum-Efficiency Operation of a 3.7 kW Inductive Wireless Charging System by Using On-Off Keying Modulation
AU - Zhong, Wenxing
AU - Li, Hao
AU - Cui, Hongzhi
AU - Hui, S. Y.R.
AU - Xu, Dehong
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2018/12/3
Y1 - 2018/12/3
N2 - The efficiency of an inductive wireless charging system varies in a large range as the load resistance changes in the charging process. Thus, maximum-efficiency operation is a basic requirement. A few methods to achieve maximum-efficiency operation have been proposed, including using a dc-dc stage, using impedance transformation circuits, using primary-side on-off keying modulation etc. In this paper, the significance of maximum-efficiency-operation techniques is firstly addressed. Then, a study is carried out on the system with on-off keying modulation which is reported as the simplest approach to achieve maximum-efficiency operation without using any extra components. The required output capacitance of the system with on-off keying is analyzed and compared with that of the system with phase-shift control. The efficiencies are measured based on a practical wireless charging system and the total energy saving is calculated with respect to the energy consumption of the system with phase-shift control. © 2018 IEEE.
AB - The efficiency of an inductive wireless charging system varies in a large range as the load resistance changes in the charging process. Thus, maximum-efficiency operation is a basic requirement. A few methods to achieve maximum-efficiency operation have been proposed, including using a dc-dc stage, using impedance transformation circuits, using primary-side on-off keying modulation etc. In this paper, the significance of maximum-efficiency-operation techniques is firstly addressed. Then, a study is carried out on the system with on-off keying modulation which is reported as the simplest approach to achieve maximum-efficiency operation without using any extra components. The required output capacitance of the system with on-off keying is analyzed and compared with that of the system with phase-shift control. The efficiencies are measured based on a practical wireless charging system and the total energy saving is calculated with respect to the energy consumption of the system with phase-shift control. © 2018 IEEE.
KW - Inductive power transfer
KW - Maximum efficiency operation
KW - On-off keying
KW - Wireless charging
KW - Wireless power transfer
UR - https://www.scopus.com/pages/publications/85060300999
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85060300999&origin=recordpage
U2 - 10.1109/ECCE.2018.8558350
DO - 10.1109/ECCE.2018.8558350
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781479973118
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 921
EP - 927
BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PB - IEEE
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -