A new capacitive coupler design for wireless capacitive power transfer applications
Engineering Science and Technology, an International Journal, vol.40, 2023 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 40
- Publication Date: 2023
- Doi Number: 10.1016/j.jestch.2023.101364
- Journal Name: Engineering Science and Technology, an International Journal
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC, Directory of Open Access Journals
- Keywords: Capacitive coupler, Capacitive power transfer, Coupling capacitors, External capacitors, Wireless charging
- Ankara Yıldırım Beyazıt University Affiliated: Yes
Abstract
Capacitive power transfer (CPT) technology has become a promising alternative solution for wireless charging applications. This paper proposes a novel coupler design to form a resonant capacitor by inserting dielectric material between two bent metal plates for each primary and secondary circuit. The main purpose of the proposed coupler is to eliminate the external capacitors and solve the low coupling capacitance for CPT applications. A comparison to the conventional four-plate coupler is presented, which shows specifically higher coupling capacitance, lower required inductance, and lower cost. Finally, the effectiveness of the proposed coupler structure is verified by simulation and experimental results.