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8.5
Power Factor
Figure 5
illustrates the power factor versus output power graph.
8.6
THD
Figure 6
illustrates the THD versus output power graph.
8.7
Startup
The following waveforms show the output voltage behavior when the line voltage has already been
applied and the instant the VCC voltage exceeds the startup threshold. From
Channel 1 = VCC, Channel 2 = Input Voltage and Channel 3 = Output Voltage
SLUUBS3A – October 2017 – Revised January 2018
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ADVANCE INFORMATION
1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0
20
40
60
Output Power (W)
Figure 5. Power Factor vs Output Power
20%
18%
16%
14%
12%
10%
8%
40
60
80
Output Power (W)
Figure 6. THD vs Output Power
Copyright © 2017–2018, Texas Instruments Incorporated
Performance Data and Typical Characteristic Curves
85Vac
115Vac
230Vac
265Vac
80
100
120
140
160
100
120
140
160
UCC28056EVM-296 Evaluation Module
180
d000
85Vac
115Vac
230Vac
265Vac
180
d000
Figure 7
to
Figure
14,
11
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