发明授权
- 专利标题： Highly efficient isolated AC/DC power conversion technique
- 专利标题（中）： 高效隔离AC / DC电源转换技术
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申请号： US11247048申请日： 2005-10-11
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公开(公告)号： US07375994B2公开(公告)日： 2008-05-20
- 发明人: William M. Andreycak
- 申请人： William M. Andreycak
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 Warren L. Franz; Wade J. Brady, III; Frederick J. Telecky, Jr.
- 主分类号： H02M7/21
- IPC分类号： H02M7/21 ; G05F1/70
摘要：
An AC-to-DC power converter that is capable of generating a regulated, isolated DC voltage output from a power factor corrected AC voltage input with improved efficiency. The AC-to-DC power converter is a two-stage power converter including a PFC stage connected in series to a power conversion stage. The PFC stage performs power factor correction using a zero current switching technique, and the power conversion stage includes a zero voltage switched half-bridge converter. The power conversion stage includes a transformer for providing the isolated DC voltage output. The AC-to-DC power converter includes a single feedback control loop for transferring error information from the DC voltage output to the PFC stage, thereby obtaining regulation of the DC voltage output.