A Multi-MHz IPT-link Developed for Load Characterisation at Highly Variable Coupling Factor
| Autor: | Samer Aldhaher, David C. Yates, Paul D. Mitcheson, Lingxin Lan, Juan M. Arteaga, George Kkelis |
|---|---|
| Přispěvatelé: | Engineering & Physical Science Research Council (E |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Coupling Technology Science & Technology 020208 electrical & electronic engineering Engineering Electrical & Electronic 020206 networking & telecommunications 02 engineering and technology Input impedance Topology Capacitance Power (physics) Rectifier Engineering 0202 electrical engineering electronic engineering information engineering Inverter Maximum power transfer theorem Electrical impedance |
| Zdroj: | Wireless Power Transfer Conference |
| DOI: | 10.1109/wpt.2018.8639239 |
| Popis: | This paper presents the development and characterisation of an inductive link to assess and compare inductive power transfer (IPT) systems that operate at 6.78 or 13.56 MHz. First, the properties of two equal air-core coils were obtained from simulations and corroborated experimentally. Then, the coupling factor between the coils was calculated in function of separation and misalignment. A receiving-end circuit, comprised of a capacitance and a resistive load, was also characterised in order to reflect different loads to the transmitter at different tunings and couplings, and therefore represent the effects produced by changes in coupling and variations in the rectifier's input impedance. The link was tested, firstly using a Class E inverter and then a load-independent Class EF inverter, both at power levels lower than 200 W. The reflected load was changed by altering coupling, and the tuning capacitance. A comparison between these inverter topologies handling highly reactive loads is shown here for the first time. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|