AN4376 datasheet(34/37 Pages) STMICROELECTRONICS

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AN4376 Scheda tecnica(PDF) 34 Page - STMicroelectronics

Il numero della parte	AN4376

Spiegazioni elettronici	10 W wide range non-isolated high power factor LED driver using HVLED815PF

PDF	37 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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34 / 37 page

PFC waveforms

AN4376

34/37

DocID025380 Rev 1

7.8

Harmonic content at nominal mains voltage

One of the main purposes of this converter is the correction of input current distortion,

decreasing the harmonic contents below the limits of the actual regulation. Therefore, the

board has been tested according to the Japanese JEIDA-MITI Class-C standard and

European EN61000-3-2 Class-C standard, at a full load and both nominal input voltage

mains.

Figure 46. Measurement at 100 VAC, 50 Hz, PIN = 10.95 W, POUT = 9.5 W, PF = 0.9880

Figure 47. Measurement at 230 V, 50 Hz, PIN = 10.88 W, POUT = 9.48 W, PF = 0.9220

Figure 46 and Figure 47 show as the harmonics respect the limits for the Class-C

equipment.

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