6533b857fe1ef96bd12b3fee

RESEARCH PRODUCT

Self-Heating Induced Instability of a Non-Linear Inductor in a SMPS: a Case Study

Daniele ScirèGiuseppe LulloGianpaolo Vitale

subject

Non-linear inductor ferrite inductor magnetic saturation stability power density switched mode power supplySettore ING-INF/01 - Elettronica

description

This paper proposes a case study to show that the non-linear operation of a power inductor in a SMPS can induce instability of the control system leading to overheating of the inductor beyond its allowable temperature and to an excessive peak of the maximum current. The case study is performed by a commercial ferrite inductor employed in a synchronous boost converter encompassing a control system to adjust the duty cycle, assuring a constant output voltage. The thermal transient is described by the time domain waveforms and thermal images.

yearjournalcountryeditionlanguage
2023-07-01
10.24084/repqj21.440https://hdl.handle.net/10447/599714