公开(公告)号：US20180277300A1

公开(公告)日：2018-09-27

申请号：US15666776

申请日：2017-08-02

Applicant: GOOGLE INC.

Inventor： Honggang SHENG ,  Yiming LI ,  Shuo WANG ,  Srikanth LAKSHMIKANTHAN

IPC: H01F27/36 ,  H01F27/28 ,  H01F27/32 ,  H01F27/29 ,  H01F27/40 ,  H02M3/335 ,  G06F1/26 ,  H01F27/24

CPC classification number: H01F27/36 ,  G06F1/26 ,  G06F1/263 ,  H01F27/24 ,  H01F27/2823 ,  H01F27/29 ,  H01F27/323 ,  H01F27/362 ,  H01F27/38 ,  H01F27/40 ,  H01F38/42 ,  H01F2038/026 ,  H02M1/12 ,  H02M1/126 ,  H02M3/335 ,  H02M3/33523 ,  H02M2001/123

Abstract: In one general aspect, a converter circuit includes a magnetic core and a coil assembly. The coil assembly includes a primary winding assembly, a secondary winding assembly, and an auxiliary winding assembly. The primary winding assembly includes a conductive medium arranged in at least one primary winding layer. The secondary winding assembly includes a conductive medium arranged in at least one secondary winding layer. The auxiliary winding assembly includes a conductive medium arranged in at least one auxiliary winding layer. The at least one auxiliary winding layer includes an auxiliary winding layer disposed adjacent to a layer of the at least one primary winding layer and adjacent to a layer of the at least one secondary winding layer.

公开(公告)号：US20170170734A1

公开(公告)日：2017-06-15

申请号：US14970481

申请日：2015-12-15

Applicant: GOOGLE INC.

Inventor： Honggang SHENG ,  Choon Ping CHNG

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/4258 ,  H02M1/44 ,  H02M3/158 ,  H02M3/33576 ,  H02M2001/007

Abstract: In one general aspect, a system can include an electromagnetic interference (EMI) filter, an alternating current (AC) rectifier bridge operatively coupled to the electromagnetic filter, the AC rectifier bridge providing a first voltage, a first power stage including a step-down transformer, the first power stage configured to receive the first voltage and output a second voltage, a second power stage configured to receive the second voltage and configured to convert the second voltage to a third voltage, and a power delivery adapter controller configured to receive at least one input indicative of a requested voltage value and configured to provide at least one output for use by the second power stage, the second power stage configured to determine a value for the third voltage based on the at least one output.