Abstract
The elimination of electromagnetic emissions (EME) in switch mode power supplies (SMPS) has high importance especially in automotive applications. External filters, spread spectrum techniques and the output driver circuits are the main methods to influence the switching behaviour of SMPS. This paper presents the concept of an output driver with adaptive current source control for high frequency SMPS and its study regarding electromagnetic compatibility (EMC) performance. The advantage of proposed circuit in comparison to the previous solutions is adjusted driver gate current based on the information of the gate voltage slope without involving the complex digital control scheme which requires to sense and to digitize the information of the switching current, switching node voltage and gate voltage. Moreover, this concept allows to control the programmed driver switching time independently from external parameters (load current, input voltage, ambient temperature). To verify the advantages of the proposed concept, the boost converter with the digital controller, 8V output voltage, 500-kHz switching frequency has been used.
Original language | English |
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Title of host publication | Proceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 85-90 |
Number of pages | 6 |
ISBN (Electronic) | 9781538626894 |
DOIs | |
Publication status | Published - 31 Jul 2017 |
Event | 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits: EMC Compo 2017 - St. Petersburg, Russian Federation Duration: 4 Jul 2017 → 8 Jul 2017 Conference number: 11 |
Conference
Conference | 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits |
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Abbreviated title | EMC Compo 2017 |
Country/Territory | Russian Federation |
City | St. Petersburg |
Period | 4/07/17 → 8/07/17 |
ASJC Scopus subject areas
- Engineering(all)
Fields of Expertise
- Information, Communication & Computing
Treatment code (Nähere Zuordnung)
- Basic - Fundamental (Grundlagenforschung)