High Efficiency Ac-Dc Converter With Power Factor Corrector
An Ac/Dc Power Converter Includes A Pair Of Input Terminals, A Boost Unit, A Dc/Dc Converter, A Coupler Chain, And A Discharge Chain. The Pair Of Input Terminals Connect To A Pulsating Dc Source. The Boost Unit Is Coupled To The Input Terminals And Generates A Voltage Higher Than The Voltage At The Input Terminals. The Dc/Dc Converter Couples To The Boost Unit And Includes A Set Of Series Switches Coupled To The Primary Side Of A Transformer Through A Series Inductor And Capacitor. The Dc/Dc Converter Further Includes A Secondary Winding Coupled To The Transformer And Coupled To A Rectifier And Filter Configuration. The Coupler Chain Couples The Boost Unit To The Dc/Dc Converter. The Discharge Chain Couples The Coupler Chain To The High Voltage Source Generated By The Boost Unit.; Control Pulses Synchronize The Series Switches So That A Resonant Current Flows In The Coupler Chain And The Discharge Chain Such That The Switches Can Be Turned On And Off While Voltages Across The Switches Are Substantially Zero.
Inventor: Liu, Joe Chui Pong | Poon, Franki Ngai Kit | Pong, Man Hay
Priority Number: US6580259B2
IPC Current: H02M000100 | H02M000142 | H02M0003335
US Class: 323282 | 323222
Assignee Applicant: The University of Hong Kong
Title: High efficiency AC-DC converter with power factor corrector
Usefulness: High efficiency AC-DC converter with power factor corrector
Summary: To enable control of switching and allow operation in soft switching mode.
Novelty: Power converter with power factor correction and which incorporates zero voltage switching
Electronics
Circuit Design
Hong Kong
