发明名称 |
A HIGH EFFICIENCY AC-DC CONVERTER WITH POWER FACTOR CORRECTOR |
摘要 |
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. |
申请公布号 |
WO02058223(A1) |
申请公布日期 |
2002.07.25 |
申请号 |
WO2002CN00012 |
申请日期 |
2002.01.11 |
申请人 |
THE UNIVERSITY OF HONG KONG |
发明人 |
LIU, JOE, CHUI, PONG;POON, FRANKI, NGAI, KIT;PONG, MAN, HAY |
分类号 |
H02M1/00;H02M1/42;H02M3/335 |
主分类号 |
H02M1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|