Open AccessCoil Inductance Design for Low Power Hybrid Wireless Power Transfer
Author(s) -
Taufiq Alif Kurniawan,
R. B. Gumilang,
Gunawan Wibisono
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/771/1/012014
Subject(s) - wireless power transfer , electromagnetic coil , inductance , electrical engineering , electronic circuit , power (physics) , coil tap , maximum power transfer theorem , transmitter , materials science , electronic engineering , engineering , physics , rogowski coil , voltage , quantum mechanics , channel (broadcasting)
This paper presents a coil inductance design for low power hybrid wireless power transfer (WPT). The proposed coil inductance design of transmitter and receiver circuits of 7.1 μH are designed using handmade copper wire structure. Several coils with the variations of wire diameters, coil loop radius, and numbers of loops are proposed to find optimum structure in the low power hybrid WPT. The optimum coil structure is obtained at wire diameter of 0.5 mm, 2.25-inch coil loop radius and 1 MHz operation frequency. The measured transceiver coil design has exhibited peak power transfer efficiency (PTE) of 33.1% at 1 cm distance between Tx and Rx. Therefore, the proposed coil design is applicable to low power hybrid wireless power transfer circuits.