Peer-Reviewed Journal Details
Mandatory Fields
Feeney, C;Wang, NN;Kulkarni, S;Pavlovic, Z;Mathuna, CO;Duffy, M
2016
May
Ieee Transactions On Power Electronics
Loss Modeling of Coupled Stripline Microinductors in Power Supply on Chip Applications
Published
WOS: 1 ()
Optional Fields
INDUCTORS CONVERTERS TRANSFORMERS SILICON EFFICIENCY WINDINGS PARALLEL
31
3754
3762
In this paper, models that account for the duty cycle and phase shift angle of the applied phase voltages in coupled stripline microinductors are presented and are shown to have a significant impact on harmonic current amplitudes and therefore microinductor efficiency. The impact of a high coupling factor between two windings surrounded by a single core is also investigated. The models are validated using finite-element analysis and measurements. A three-phase-coupled microinductor has been fabricated with a Ni45Fe55 core and analyzed for a number of operating conditions. A prototype 1.6 W, three-phase converter utilizing this inductor has also been measured and is discussed in detail. The coupled microinductor is predicted to have a peak efficiency of 86.6% at 20 MHz in the prototype circuit.
0885-8993
10.1109/TPEL.2015.2457332
Grant Details
Publication Themes