Reduction of EMI from SMPS (switched mode power supplies) by resonance technique and its utilities in industrial process control instruments

Author

Bera, R. ; Bera, J. ; Sen, A.K. ; Dasgupta, P.R.

Author_Institution

Inst. of Radio Phys. & Electron., Calcutta Univ., India

fYear

1999

fDate

6-8 Dec. 1999

Firstpage

445

Lastpage

448

Abstract

EMI restricts automation of the process control industries. A method of solving EMI problems by using a SMPS power supply and resonating it at high frequency is described. At the same time use of resonance mode SMPS helps by provide advantages of higher efficiency (95%), less heat dissipation, reliability of operation and compactness. This paper is the outcome during development and maintenance of microcontroller based process control instruments for Nalco, Orissa.

Keywords

electromagnetic interference; instrumentation; interference suppression; microcontrollers; process control; reliability; switched mode power supplies; 95 percent; EMI reduction; Nalco; Orissa; SMPS; heat dissipation; high frequency resonance; industrial process control instruments; maintenance; microcontroller based process control instruments; process control industries; reliability; resonance mode SMPS; resonance technique; switched mode power supplies; Automation; Electricity supply industry; Electromagnetic interference; Frequency; Industrial control; Instruments; Maintenance; Process control; Resonance; Switched-mode power supply;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Interference and Compatibility '99. Proceedings of the International Conference on

Print_ISBN

81-900652-0-3

Type

conf

DOI

10.1109/ICEMIC.1999.871680

Filename

871680