EMC Analysis of the Inverting Boost/Buck Converter Topology

Daniel Kircher; David Johannes Pommerenke

doi:10.3390/electronics11203388

EMC Analysis of the Inverting Boost/Buck Converter Topology

Daniel Kircher^*, David Johannes Pommerenke

^*Corresponding author for this work

Institute of Electronics (4390)

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes the electromagnetic compatibility (EMC) analysis of an inverting buck/boost converter. The inverting buck/boost converter differs from other DC/DC converters, such as the noninverting boost or buck converters, in that one inductor terminal is connected to the ground and not to the input or output of the converter, i.e., neither input nor output is isolated from an EMC perspective. A SPICE model was developed for analyzing the EMC properties of the circuit. Two electromagnetic interference EMI-relevant resonances were observed depending on the state of the switch. Simulations are confirmed with measurements using a circuit designed from discrete components. Further, integrated commercially available converters were analyzed and showed EMC properties that were similar to those of the general model.

Original language	English
Article number	3388
Number of pages	17
Journal	Electronics
Volume	11
Issue number	20
DOIs	https://doi.org/10.3390/electronics11203388
Publication status	Published - 19 Oct 2022

Keywords

EMC
; inverting buck/boost
; DC/DC converter
SMPS

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10.3390/electronics11203388Licence: CC BY 4.0

https://doi.org/10.3390/electronics11203388Licence: CC BY 4.0

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title = "EMC Analysis of the Inverting Boost/Buck Converter Topology",

abstract = "This paper describes the electromagnetic compatibility (EMC) analysis of an inverting buck/boost converter. The inverting buck/boost converter differs from other DC/DC converters, such as the noninverting boost or buck converters, in that one inductor terminal is connected to the ground and not to the input or output of the converter, i.e., neither input nor output is isolated from an EMC perspective. A SPICE model was developed for analyzing the EMC properties of the circuit. Two electromagnetic interference EMI-relevant resonances were observed depending on the state of the switch. Simulations are confirmed with measurements using a circuit designed from discrete components. Further, integrated commercially available converters were analyzed and showed EMC properties that were similar to those of the general model.",

keywords = "EMC, ; inverting buck/boost, ; DC/DC converter, SMPS",

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AU - Pommerenke, David Johannes

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N2 - This paper describes the electromagnetic compatibility (EMC) analysis of an inverting buck/boost converter. The inverting buck/boost converter differs from other DC/DC converters, such as the noninverting boost or buck converters, in that one inductor terminal is connected to the ground and not to the input or output of the converter, i.e., neither input nor output is isolated from an EMC perspective. A SPICE model was developed for analyzing the EMC properties of the circuit. Two electromagnetic interference EMI-relevant resonances were observed depending on the state of the switch. Simulations are confirmed with measurements using a circuit designed from discrete components. Further, integrated commercially available converters were analyzed and showed EMC properties that were similar to those of the general model.

AB - This paper describes the electromagnetic compatibility (EMC) analysis of an inverting buck/boost converter. The inverting buck/boost converter differs from other DC/DC converters, such as the noninverting boost or buck converters, in that one inductor terminal is connected to the ground and not to the input or output of the converter, i.e., neither input nor output is isolated from an EMC perspective. A SPICE model was developed for analyzing the EMC properties of the circuit. Two electromagnetic interference EMI-relevant resonances were observed depending on the state of the switch. Simulations are confirmed with measurements using a circuit designed from discrete components. Further, integrated commercially available converters were analyzed and showed EMC properties that were similar to those of the general model.

KW - EMC

KW - ; inverting buck/boost

KW - ; DC/DC converter

KW - SMPS

U2 - 10.3390/electronics11203388

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JO - Electronics

JF - Electronics

IS - 20

M1 - 3388

ER -

EMC Analysis of the Inverting Boost/Buck Converter Topology

Abstract

Keywords

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