A ZVS approach for AC/DC converter A ZVS approach for AC/DC converter with PFC with PFC The Power Electronics Lab., Hong Kong The Power Electronics Lab., Hong Kong University University N. K. Poon N. K. Poon C. P. Liu C. P. Liu M. H. Pong M. H. Pong Speaker Speaker Bryan M. H. Pong Bryan M. H. Pong Power e Lab HKU Prepared by Franki Poon Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ www.eee.hku.hk/power_electronics_lab/ 1 Power Power e Lab Lab HKU HKU
Power e Lab HKU . Power e Lab HKU. A ZVS approach for AC/DC converter with PFC. The Power Electronics Lab., Hong Kong University N. K. Poon C. P. Liu M. H. Pong Speaker Bryan M. H. Pong. Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ 1. Load. Power e Lab - PowerPoint PPT Presentation
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A ZVS approach for AC/DC converter with A ZVS approach for AC/DC converter with PFCPFC The Power Electronics Lab., Hong Kong The Power Electronics Lab., Hong Kong
UniversityUniversityN. K. Poon N. K. Poon C. P. Liu C. P. Liu M. H. PongM. H. Pong
Speaker Speaker Bryan M. H. PongBryan M. H. Pong
PowereLab HKU
Prepared by Franki Poon Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ www.eee.hku.hk/power_electronics_lab/ 11Power Power eeLabLab
HKUHKU
Some basic concepts
Input rectifiers and capacitor produce Pulsating input current
Harmonic currents are generated
Load
Prepared by Franki Poon Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ www.eee.hku.hk/power_electronics_lab/ 22Power Power eeLabLab
HKUHKU
A conventional method
A boost converter and a DC/DC converter
IpfcIdc
Prepared by Franki Poon Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ www.eee.hku.hk/power_electronics_lab/ 33Power Power eeLabLab
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A popular method among researchers
Single stage design which combines the boost and the DCDC converters
IpfcIdc
Prepared by Franki Poon Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ www.eee.hku.hk/power_electronics_lab/ 44Power Power eeLabLab
HKUHKU
Is single stage design always better?
Let us take a look
Prepared by Franki Poon Prepared by Franki Poon www.eee.hku.hk/power_electronics_lab/ www.eee.hku.hk/power_electronics_lab/ 55Power Power eeLabLab