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AN4376 Scheda tecnica(PDF) 17 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
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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AN4376 Scheda tecnica(HTML) 17 Page - STMicroelectronics

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AN4376
Measurement results
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6.3
Power factor at nominal load
The “Power Factor” (PF) at the nominal load remains above 0.9 for every input mains
voltage.
Figure 13. Power factor vs. AC line voltage at nominal load
6.4
Total harmonic distortion (THD) at nominal load
Figure 14 shows the total harmonic distortion versus line voltage:
Figure 14. Total harmonic distortion vs. AC line voltage at nominal load
The THD curve presents two minimum valley point corresponding to the Japanese and
European nominal voltage.



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