EVL185W-LEDTV STMicroelectronics, EVL185W-LEDTV Datasheet - Page 12

• Manufacturer Part Number: EVL185W-LEDTV
• Description: DEMO BOARD VIPER27L L6564 L6599A
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of EVL185W-LEDTV

• Design Resources: EVL185W-LED BOM EVL185W-LED Schematic
• Main Purpose: Power Supply with PFC
• Outputs And Type: 4, Isolated
• Power - Output: 185W
• Voltage - Output: 130V, 24V, 12V, 5V
• Current - Output: 620mA,2A, 4A, 2A
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: -
• Frequency - Switching: -
• Board Type: Fully Populated
• Utilized Ic / Part: Viper27L, L6564, L6599A
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11255

Harmonic content measurement
3
12/43
Figure 5.
Figure 7.
Vin=230 Vac - 50 Hz, Pin=204 W
THD=4.22 %, PF=0.985
Vin=230 Vac - 50 Hz, Pin=75 W
THD=7.29 %, PF=0.867
0.0001
0.0001
0.001
0.001
0.01
0.01
0.1
0.1
0.1
0.1
10
10
10
10
1
1
1
1
1
1
Measured Value
Measured Value
Measured Value
Measured Value
3
3
Harmonic content measurement
The main purpose of a PFC pre-regulator is the input current shaping to reduce the
harmonic content below the limits of the relevant regulations. This demonstration board has
been tested according to the European standard EN61000-3-2 Class-D and Japanese
standard JEITA-MITI Class-D, at full load and 75 W input power.
Figure
harmonics well below the limits of both regulations in all conditions. Total harmonic
distortion (THD) and power factor (PF) values are given below each diagram.
EN61000-3-2 compliance at
230 Vac - 50 Hz, full load
5
EN61000-3-2 compliance at
230 Vac - 50 Hz, 75 W
5
7
7
9
9
11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
5, 6, 7, and
Harmonic Order [n]
Harmonic Order [n]
EN61000-3-2 Class-D Limits
EN61000-3-2 Class-D Limits
EN61000-3-2 Class-D Limits
EN61000-3-2 Class-D Limits
8
show the test results. As can be seen, the PFC is able to reduce the
Doc ID 18449 Rev 1
AM08372v1
AM08374v1
Figure 6.
Figure 8.
Vin=100 Vac - 50 Hz, Pin=209 W
THD=3.71 %, PF=0.999
Vin=100 Vac - 50 Hz, Pin=75 W
THD=5.72% , PF=0.999
0.0001
0.0001
0.001
0.001
0.01
0.01
0.1
0.1
0.1
0.1
10
10
10
10
1
1
1
1
1
1
Measured Value
Measured Value
Measured Value
Measured Value
3
3
5
JEITA-MITI compliance at
100 Vac - 50 Hz, full load
5
JEITA-MITI compliance at
100 Vac - 50 Hz, 75 W
7
7
9
9
11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Harmonic Order [n]
Harmonic Order [n]
JEITA-MITI Class-D Limits
JEITA-MITI Class-D Limits
JEITA-MITI Class-D Limits
JEITA-MITI Class-D Limits
AN3339
AM08373v1
AM08375v1