A low-cost online estimator for switch-mode power supplies with saturating ferrite-core inductors

被引：0

作者：

Lodi, Matteo ^{[1
]}

Oliveri, Alberto ^{[1
]}

Storace, Marco ^{[1
]}

机构：

[1] Univ Genoa, DITEN, Via Opera Pia 11a, I-16145 Genoa, Italy

来源：

2019 26TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS (ICECS) | 2019年

关键词：

D O I：

10.1109/icecs46596.2019.8964684

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ferrite-core inductors are largely used in switch-mode power supplies (SMPSs) and can be fruitfully exploited also when working in partial saturation. Several behavioral models have been recently proposed to represent both inductance and power losses in saturation conditions. In this paper we exploit this kind of models for estimating online relevant features of the SMPS inductor, such as current ripple and power loss, which are difficult to monitor through acquisition of easily-measurable quantities only. The method works at electrical steady-state, but is able to follow the thermal transients. Models are implemented on a low-cost microcontroller and tests are performed on a boost converter, for different operating conditions.

引用

页码：851 / 854

页数：4

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