Influence of Shielding on the Magnetic Field Emitted by the LED Driver
Résumé
LED lamps are an extremely efficient, economical and durable lighting option that has revolutionized the lighting industry. They are increasingly used in many areas due to their significant advantages in energy efficiency and sustainability, To operate the LED lamps, you only need an AC/DC driver. The aim of this study is to quantify the magnetic near field above LED driver, for the three components (Hx, Hy, Hz). in the frequency domain were performed by using spectrum analyzer. Then, the magnetic field with shielding was determined. The magnetic shielding techniques used are total shielding, partial shielding or double total shielding. All the cases are compared with each other in all directions x, y and z. The shielding material that we used is Aluminum foil of about 0.1 mm thickness, , the LED driver size which is equal to (x, y) = (2.8 cm, 1.6 cm) supplied by an AC 220 V source, 50 Hz of frequency.
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