期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 68, 期 12, 页码 12930-12934出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3047067
关键词
Coils; Zero voltage switching; Impedance; Switches; Voltage control; Receivers; Reactive power; Current-mode switching cells (CMSCs); individually regulated dual-output; inductive power transfer (IPT)
资金
- National Natural Science Foundation of China [51777176, 61733015]
This letter presents an IPT system with dual-output based on CMSC, featuring a simple circuit structure and real-time regulation control scheme at the Rx side without the need for wireless communication links. The experimental prototype demonstrates high efficiency with 92.8% maximum efficiency.
Based on the current-mode switching cell (CMSC), an inductive power transfer (IPT) system with dual-output is proposed in this letter. In the proposed IPT system, two CMSCs are inversely connected in series at the Rx side. Two CMSCs operate in the positive half-cycle and in the negative half-cycle of the Rx coil current, respectively. The dual output voltages can be regulated independently. The circuit structure of the CMSC is quite simple and helps to make the Rx side more compact. The control scheme is based on Rx-side real-time regulation and thereby wireless communication links are not required. Additionally, zero voltage switching is ensured for all switches. In order to verify the theoretical analysis, an experimental prototype with 20 V/3.3 A and 5 V/3 A outputs is fabricated, and the maximum efficiency can reach 92.8%.
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