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AN3372 Datasheet(PDF) 32 Page - STMicroelectronics

Part # AN3372
Description  This note describes digital ballast for 70 W HID lamps
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3372 Datasheet(HTML) 32 Page - STMicroelectronics

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STEVAL-ILH004V1: experimental results
AN3372
32/37
Doc ID 018625 Rev 1
Figure 23.
STEVAL-ILH004V1: THD% vs. input voltage
Figure 24.
STEVAL-ILH004V1: efficiency% vs. input voltage
As can be seen, the board has a good efficiency and power factor, the THD is good at 110 V
input range but exceeds 10% at 230 V. It is possible to reduce this value reducing the PFC
input capacitor and increasing the output voltage. In any case, the board globally offers
good performance in this condition.



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