发明名称 |
High efficiency AC-DC converter with power factor corrector |
摘要 |
A power converter includes a boost converter, a DC/DC converter and a coupler chain. The boost converter receives a rectified AC input and generates a high voltage output. The boost converter includes a zero-voltage-switching transistor that is operable to adjust the power factor of the rectified AC input to generate the high voltage output. The DC/DC converter is coupled to the high voltage output of the boost converter and is configured to generate a regulated output voltage. The DC/DC converter includes a complementary pair of zero-voltage-switching transistors that are operable to regulate the high voltage output of the boost converter to generate the regulated output voltage. The coupler chain is coupled between a current-carrying terminal of the zero-voltage-switching transistor of the boost converter and current-carrying terminals of the complementary pair of zero-voltage-switching transistors in the DC/DC converter The coupler chain is operable to reduce the voltage across the current-carrying terminals of at least one of the zero-voltage-switching-transistors.
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申请公布号 |
US6812679(B2) |
申请公布日期 |
2004.11.02 |
申请号 |
US20030445655 |
申请日期 |
2003.05.27 |
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;(IPC1-7):G05F1/40 |
主分类号 |
H02M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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