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AN3119 Datasheet(PDF) 11 Page - STMicroelectronics |
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AN3119 Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 32 page AN3119 Test results and significant waveforms Doc ID 16849 Rev 2 11/32 For user reference, waveforms of the input current and output voltage at 230 Vac and 100 Vac input voltage mains during nominal and 70 W load operation are shown in Figure 7, 8, 9, and 10. As shown in the images, the current shape is very good and sinewave has very low distortion, as confirmed by the low THD in all line and load conditions. The power factor (PF) and the total harmonic distortion (THD) have also been measured and the results are given in Figure 11 and 12. As shown, the PF remains close to unity throughout the input voltage mains and the total harmonic distortion is very low over all the Figure 7. EVL6563S-250W TM PFC: input current waveform @230 V-50 Hz - 250 W load Figure 8. EVL6563S-250W TM PFC: input current waveform @100 V-50 Hz - 250 W load CH1: Vout CH2: V bridge CH4: I_AC CH1: Vout CH2: V bridge CH4: I_AC Figure 9. EVL6563S-250W TM PFC: input current waveform @230 V-50 Hz - 70 W load Figure 10. EVL6563S-250W TM PFC: input current waveform @100 V-50 Hz - 70 W load CH1: Vout CH2: V bridge CH4: I_AC CH1: Vout CH2: V bridge CH4: I_AC |
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