EVAL6599-400W-S STMicroelectronics, EVAL6599-400W-S Datasheet - Page 10

• Manufacturer Part Number: EVAL6599-400W-S
• Description: DEMO BOARD FOR L6599
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVAL6599-400W-S

• Main Purpose: AC/DC, Primary Side and PFC
• Outputs And Type: 3, Isolated
• Power - Output: 400W
• Voltage - Output: 200V, 5V, 3.3V
• Current - Output: 2A, 1A, 700mA
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Resonant
• Board Type: Fully Populated
• Utilized Ic / Part: L6563, L6599
• Input Voltage: 90 V to 264 V
• Output Voltage: 3.3 V to 200 V
• Dimensions: 132 mm x 265 mm
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6599
• Other names: 497-5856

Electrical test results
2.2
10/35
Figure 8.
1.00
0.98
0.95
0.93
0.90
0.88
0.85
80
PF
Efficiency measurements
Table 1.
of 115 V
load and at light load operations, the input power is measured using a Yokogawa WT-210
digital power meter. Particular attention has to be paid when measuring input power at full
load in order to avoid measurement errors due to the voltage drop on cables and
connections.
Figure 10.
nominal input mains voltages of 115 V
minutes of warm-up at maximum load. The high efficiency of the PFC pre-regulator working
in FOT mode and the very high efficiency of the resonant stage working in ZVS (i.e. with
negligible switching losses), provides for an overall efficiency better than 88% at full load in
the complete mains voltage range. This is a significant high value for a two-stage converter,
especially at low input mains voltage where PFC conduction losses increase. Even at lower
loads, the efficiency still remains high.
Figure 10. Overall efficiency versus output power at nominal mains voltages
Power factor vs. Vin & load
120
400W
200W
70W
AC
and
160
shows the overall circuit efficiency, measured at each load condition, at both
and 230 V
Vin [Vrms]
Table 2.
100%
95%
90%
85%
80%
75%
70%
65%
60%
200
0
show the output voltage measurements at the nominal mains voltages
AC
, with different load conditions. For all measurements, both at full
50
240
100
280
150
AC
Figure 9.
and 230 V
@230Vac
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
THD [%]
200
Output Power (W)
80
@115Vac
250
AC
Total harmonic distortion vs. Vin &
load
120
. The values were measured after 30
400W
200W
70W
300
160
350
Vin [Vrms]
400
200
450
240
AN2492
280