EMC analysis of an 18" LCD monitor

Author

Zeeff, Theodore M. ; Hubing, Todd H. ; Drewniak, James L. ; Dussroff, R.E. ; Van Doren, Thomas P.

Author_Institution

Dept. of Electr. & Comput. Eng., Missouri Univ., Rolla, MO, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

169

Abstract

This paper describes a case study covering the evaluation and reduction of the radiated EMI from an 18" liquid crystal display (LCD) monitor. The evaluation was completed in two parts: first potential EMI sources at the printed circuit board (PCB) level were identified, then the EMI antennas driven by these sources were analyzed. Methods for reducing the EMI were described in detail, and where applicable, those modifications were applied. Radiated measurements demonstrate the effectiveness of these recommendations

Keywords

HF antennas; UHF antennas; VHF antennas; electromagnetic compatibility; interference suppression; liquid crystal displays; printed circuits; radiofrequency interference; 0 to 1000 MHz; 18 inch; 18" LCD monitor; EMC analysis; EMI antennas; EMI sources; PCB; liquid crystal display monitor; printed circuit board; radiated EMI; radiated measurements; Capacitance; Capacitors; Clocks; Computerized monitoring; Current supplies; Electromagnetic compatibility; Fluorescence; Frequency; Inductance; Liquid crystal displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2000. IEEE International Symposium on

Conference_Location

Washington, DC

Print_ISBN

0-7803-5677-2

Type

conf

DOI

10.1109/ISEMC.2000.875557

Filename

875557