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AN4376 датащи(PDF) 16 Page - STMicroelectronics

номер детали AN4376
подробное описание детали  10 W wide range non-isolated high power factor LED driver using HVLED815PF
PDF  37 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4376 датащи(HTML) 16 Page - STMicroelectronics

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Measurement results
AN4376
16/37
DocID025380 Rev 1
6
Measurement results
The EVLHVLED815W10A non-isolated LED driver demonstration board has been tested
using the following instrumentations/load:
Agilent Technologies 6813B
AC source
YOGOGAWA® WT210
watt meter
Tektronix® DP07054 500 MHz
digital oscilloscope
Tektronix TCP0030
current probe
TELEDYNE LECROY PPE4kV 100:1 400 MHz
high-voltage probe
KEITHLEY 2000
digital multimeter
Avio TVS-200 P
thermal video system
CHROMA TECHNOLOGY CORP® 6314
DC electronic load
SEOUL SEMICONDUCTOR Z-Power LED P4
LED series
6.1
LED driver performance at nominal load 70 VDC - 140 mA
First measurement set has been collected using a nominal load with an LED voltage drop of
70 VDC. Following Equation 1 the current flowing into the LED is set by: R2 = 1.2
 ± 1%
and R3 = 1.8
 ± 1% at 140 mA.
6.2
Line regulation at nominal load
Figure 12 shows the measured average output current versus line voltage at the nominal
load:
Figure 12. LED current vs. AC line voltage
The output current is 140 mA ± 1% over all the input voltage range [85 - 265] VAC.



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