公开(公告)号：WO2014077973A3

公开(公告)日：2014-05-22

申请号：PCT/US2013/063409

申请日：2013-10-04

Applicant: APPLE INC.

Inventor： OH, InHwan

IPC: H02M7/217 ,  H02M1/42 ,  H02M1/14 ,  H02M7/48

Abstract: The disclosed embodiments provide an AC/DC power converter that converts an AC input voltage into a DC output voltage. This AC/DC power converter includes an input rectifier stage which rectifies an AC input voltage into a first rectified voltage of a first constant polarity and a first amplitude. The AC/DC power converter also includes a switching resonant stage which is directly coupled to the output of the input rectifier stage. This switching resonant stage converts the rectified voltage into a second rectified voltage of a second constant polarity and a second amplitude. The AC/DC power converter additionally includes an output rectifier stage coupled to the output of the switching resonant stage, wherein the output rectifier stage rectifies the second rectified voltage into a DC voltage output.

公开(公告)号：WO2014088708A1

公开(公告)日：2014-06-12

申请号：PCT/US2013/065562

申请日：2013-10-18

Applicant: APPLE INC.

Inventor： OH, InHwan ,  SIMS, Nicholas A.

IPC: H02M7/217 ,  H02M1/42

CPC classification number: H02M3/33507 ,  H02M1/08 ,  H02M1/14 ,  H02M1/4241 ,  H02M1/4258 ,  H02M1/44 ,  H02M7/217 ,  Y02B70/126 ,  Y02B70/1441

Abstract: The disclosed embodiments provide an AC/DC power converter that converts an AC input voltage into a DC output voltage. This AC/DC power converter includes an input rectifier stage which rectifies an AC input voltage into a first rectified voltage. The AC/DC power converter also includes a switching resonant stage (208) which is directly coupled to the output of the input rectifier stage (202). The switching resonant stage converts the rectified voltage into a first high frequency AC voltage of a first amplitude. This AC/DC power converter additionally includes a transformer (230) which is coupled to the output of the switching resonant stage and is configured to down-convert the first high frequency AC voltage into a second high frequency AC voltage of a second amplitude. Furthermore, the AC/ DC power converter includes an output rectifier stage (210) which is coupled to the output of the transformer, wherein the output rectifier stage rectifies the second high frequency AC voltage into a DC output voltage.

Abstract translation: 所公开的实施例提供将AC输入电压转换为DC输出电压的AC / DC功率转换器。 该AC / DC电力转换器包括将AC输入电压整流为第一整流电压的输入整流级。 AC / DC功率转换器还包括直接耦合到输入整流器级（202）的输出的开关谐振级（208）。 开关谐振级将整流电压转换为第一幅度的第一高频AC电压。 该AC / DC功率转换器还包括耦合到开关谐振级的输出的变压器（230），并且被配置为将第一高频AC电压下变频为第二幅度的第二高频AC电压。 此外，AC / DC功率转换器包括耦合到变压器的输出的输出整流级（210），其中输出整流器级将第二高频AC电压整流为DC输出电压。