Equally Split PCB Inductor (ESPI) Design for High Energy Density and Low Near-Field Radiation
- Resource Type
- Periodical
- Authors
- Wang, Z.; Ying, W.; Zeng, Y.; Wang, S.; Jiang, C.; Long, T.; Qiu, J.; Liu, K.; Zhao, H.
- Source
- IEEE Transactions on Power Electronics IEEE Trans. Power Electron. Power Electronics, IEEE Transactions on. 39(5):4963-4968 May, 2024
- Subject
- Power, Energy and Industry Applications
Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
General Topics for Engineers
Nuclear Engineering
Signal Processing and Analysis
Transportation
Inductors
Wires
Inductance
Patents
Skin effect
Current distribution
Skin
Near-field radiation
optimized energy density
PCB inductors
- Language
- ISSN
- 0885-8993
1941-0107
PCB inductors can enhance the integration of power electronics systems and hence are in high demand. Nevertheless, PCB inductors encounter challenges, such as the severe skin effect and significant inductance reduction, in both ac and dc conditions as trace widths increase. This letter identifies the cause of this inductance reduction and proposes an innovative PCB inductor structure to mitigate these issues. The new design also utilizes split wires to effectively suppress the skin effect. Comprehensive simulations and experiments demonstrate that the proposed equally split PCB inductor can achieve both high energy density and low near-field magnetic radiation.