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AN4350 Scheda tecnica(PDF) 22 Page - STMicroelectronics

Il numero della parte AN4350
Spiegazioni elettronici  High power factor LED driver with constant voltage regulation based on HVLED815PF
PDF  34 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4350 Scheda tecnica(HTML) 22 Page - STMicroelectronics

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Test results
AN4350
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DocID025181 Rev 1
6
Test results
From Figure 11 to Figure 18 are shown the main results of the demonstration boards at
nominal line input voltage (230 Vac).
6.1
Efficiency
System efficiency is higher than 80% starting from 20% of the rated maximum load (about
70 mA) and it increases up to 88% at the maximum load.
Figure 11. System efficiency
6.2
Power factor
The power factor is higher than 0.75 starting from 20% of the rated maximum load (about
70 mA) and increases up to 0.95 at maximum load.



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