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Texas Instruments UCC28070
800-W High efficiency bridgeless Power Factor Correction (PFC) reference design
Details
| Topologie | Leistungsfaktor-Korrektur |
| Eingangsspannung | 90-264 V |
| Ausgang 1 | 390 V / 2 A |
| IC-Revision | 001 |
Beschreibung
This reference design is a bridgeless PFC circuit using UCC28070 Interleaving CCM PFC controller to provide 390-V /2-A output from universal AC input. The circuit uses Average Current Mode PWM control with advanced internal current synthesizer for current sensing. This design achieves 96.57% peak efficiency at 115-VAC/60-Hz input and 98.07% peak efficiency at 230-VAC/50-Hz input. The power factor is above 0.994 at full load at 115-VAC and 230-VAC input. The thin height (<25 mm) design makes it suitable for television and appliances application.
Eigenschaften
- Bridgeless structure PFC for high efficiency
- Continuous current-mode control with current synthesizer to reduce differential filter
- 96.57% peak efficiency at 115-VAC/60-Hz and 98.07% peak efficiency at 230-VAC/50-Hz input
- Power factor above 0.994 at full load at 115-VAC and 230-VAC input
Typische Anwendungen
- SMPS power supply for TV
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