Experimental comparison of traditional and alternating winding method for planar spiral inductor

Experimental comparison of traditional and alternating winding method for planar spiral inductor

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Two planar winding structures have been built to compare the characteristics of traditional and alternating winding methods. The alternating winding method reduces the potential difference of adjacent conductors, thus reducing substantially the self-capacitance in the winding. Measurements confirmed that the two inductors have similar equivalent inductance and low-frequency series resistance. However, the alternating winding method has a higher self resonant frequency. It is also evident that the reduction of self-capacitance in the winding not only increased the operating bandwidth of the device but also reduced the power losses of the inductor at high frequency.


    1. 1)
      • Huljak, R.J., Marsh, V.J., Miller, B.A.: `Where are power supplies headed?', Proc. IEEE APEC'00, February 2000, New Orleans, LA, USA, p. 10–17.
    2. 2)
      • Wang, C., Xu, M., Lu, B., Lee, F.C.: `New architecture for MHz switching frequency PFC', Proc. 22nd Annual IEEE APEC, March 2007, Anaheim, CA, USA, p. 179–185.
    3. 3)
      • S.C. Tang , S.Y.R. Hui , H.S.H. Chung . A low-profile low-power converter with coreless PCB isolation transformer. IEEE Trans. Power Electron. , 3 , 311 - 315
    4. 4)
      • D. Van der Linde , C.A.M. Boon , J.B. Klaassens . Design of a high-frequency planar power transformer in multilayer technology. IEEE Trans. Ind. Electron. , 2 , 135 - 141
    5. 5)
      • W.G. Hurley , M.C. Duffy . Calculation of self and mutual impedances in planar magnetic structures. IEEE Trans. Magn. , 4 , 2416 - 2422
    6. 6)
      • E.C. Snelling . (1998) Soft ferrites properties and applications.

Related content

This is a required field
Please enter a valid email address