EVAL6599-200W STMicroelectronics, EVAL6599-200W Datasheet - Page 12

• Manufacturer Part Number: EVAL6599-200W
• Description: EVAL BOARD FOR L6599
• Manufacturer: STMicroelectronics
• Type: Power Factor Correctionr

Specifications of EVAL6599-200W

• Main Purpose: AC/DC, Primary Side and PFC
• Outputs And Type: 4, Isolated
• Power - Output: 200W
• Voltage - Output: 24V, 12V, 5V, 3.3V
• Current - Output: 6A, 5A, 1A, 700mA
• Voltage - Input: 90 ~ 264VAC
• Regulator Topology: Resonant
• Frequency - Switching: 95kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6563, L6599
• Input Voltage: 90 V to 264 V
• Output Voltage: 3.3 V to 24 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: 497-5496

Electrical test results
12/35
while the almost sinusoidal current waveform just allows for an extremely low EMI
generation.
Figure 8
loaded. This picture demonstrates the ability of the converter to operate down to zero load,
with the output voltages still within regulation. The resonant tank current has obviously a
triangular shape and represents the magnetizing current flowing into the transformer
primary side.
Figure 7.
Figure 8.
In
rectifiers reverse voltage is measured by CH1 (for both +24 V and +12 V outputs) and the
peak to peak value is indicated on the right side of the figure. It is a bit higher than the
theoretical value that would be 2(V
bottom side of the waveform, responsible for this difference.
Figure 9
shows the same waveforms of previous figure, when both the outputs are not
and
Resonant circuit primary side waveforms at full load
Resonant circuit primary side waveforms at no-load condition
Figure
10, waveforms relevant to the secondary side are represented: the
OUT
+V
F
): it is possible to observe a small ringing on the
Ch3: half-bridge square voltage
Ch4: resonant tank current
Ch1: +12V output voltage
Ch2: +24V output voltage
Ch3: half-bridge square voltage
Ch4: resonant tank current
AN2393