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1. 发明授权

US10141100B2 Common-mode noise reduction 有权
公开(公告)号：US10141100B2
公开(公告)日：2018-11-27
申请号：US15666776
申请日：2017-08-02
申请人： GOOGLE INC.
发明人： Honggang Sheng , Yiming Li , Shuo Wang , Srikanth Lakshmikanthan
IPC分类号： H01F27/36 , H01F27/28 , H01F27/32 , H01F27/29 , H01F27/40 , H02M3/335 , G06F1/26 , H01F27/24
摘要： 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.

2. 发明授权

US09748782B1 Power adapter charging modification based on a feedback loop 有权
公开(公告)号：US09748782B1
公开(公告)日：2017-08-29
申请号：US14594512
申请日：2015-01-12
申请人： GOOGLE INC.
发明人： Honggang Sheng , Mark D. Hayter , Choon Ping Chng
IPC分类号： H02J7/00
CPC分类号： G06F1/266 , H02J7/0029 , H02J7/0068 , H02J2007/0039 , H02J2007/0062 , H02J2007/0096
摘要： A power brick includes a power module configured to convert AC to DC, an interface coupled to a computing device and configured to communicate with the computing device, and a controller. The controller is configured to receive a modified power setting and at least one modified error threshold value via the interface, control a modification of a power setting associated with the power module, and control a modification of a protection value of the power brick based on the at least one modified error threshold value.

3. 发明申请

US20190068069A1 Programmable Power Adapter 审中-公开
公开(公告)号：US20190068069A1
公开(公告)日：2019-02-28
申请号：US15693393
申请日：2017-08-31
申请人： Google Inc.
发明人： Honggang Sheng , Liang Jia , Srikanth Lakshmikanthan
IPC分类号： H02M3/335
摘要： In some implementations, a programmable power adapter includes a first set of switches, a resonant circuit, a transformer, and a second set of switches. The power adapter includes control circuitry configured to provide control signals that change the voltage conversion ratios of the first set of switches and the second set of switches. The control circuitry can provide control signals causing the first set of switches to operate in one of multiple operating modes that each correspond to a different voltage conversion ratio, and the control circuitry can provide control signals causing the second set of switches to operate in one of multiple operating modes that each correspond to a different voltage conversion ratio.

4. 发明授权

US09899925B2 Two stage structure for power delivery adapter 有权
公开(公告)号：US09899925B2
公开(公告)日：2018-02-20
申请号：US14970481
申请日：2015-12-15
申请人： GOOGLE INC.
发明人： Honggang Sheng , Choon Ping Chng
IPC分类号： H02M3/335 , H02M1/42 , H02M3/158 , H02M1/00 , H02M1/44
CPC分类号： H02M3/33507 , H02M1/4258 , H02M1/44 , H02M3/158 , H02M3/33576 , H02M2001/007
摘要： 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.

5. 发明授权

US09590510B1 Cable IR drop compensation 有权
标题翻译：电缆IR跌落补偿
公开(公告)号：US09590510B1
公开(公告)日：2017-03-07
申请号：US14495380
申请日：2014-09-24
申请人： GOOGLE INC.
发明人： Honggang Sheng , Choon Ping Chng
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： According to an aspect, an adaptor may include a converting unit configured to convert a source voltage to an output voltage to be provided to a computing device via a cable. The converting unit includes a transformer having primary windings and secondary windings. The adaptor includes a current sense unit configured to obtain a current sense signal, where the current sense signal indicates an output current produced by the secondary windings of the transformer. The adaptor includes an IR drop detection unit configured to determine a feedback signal representing a voltage drop caused by the cable based on the current sense signal and the output voltage of the converting unit, and a control unit configured to adjust the output voltage of the converting unit to account for the voltage drop represented by the feedback signal.
摘要翻译：根据一个方面，适配器可以包括转换单元，其被配置为将源电压转换成经由电缆提供给计算设备的输出电压。转换单元包括具有初级绕组和次级绕组的变压器。适配器包括被配置为获得电流感测信号的电流感测单元，其中电流感测信号指示由变压器的次级绕组产生的输出电流。所述适配器包括：IR降落检测单元，被配置为基于所述电流检测信号和所述转换单元的输出电压来确定表示由所述电缆引起的电压降的反馈信号;以及控制单元，被配置为调整所述转换器的输出电压单位来解释由反馈信号表示的电压降。

6. 发明授权

US09392720B1 Server rack architecture that facilitates reduced current density 有权
标题翻译：便于降低电流密度的服务器机架架构
公开(公告)号：US09392720B1
公开(公告)日：2016-07-12
申请号：US13798759
申请日：2013-03-13
申请人： Google Inc.
发明人： Sangsun Kim , Honggang Sheng , Ken Krieger
IPC分类号： G06F1/16 , H05K5/00 , H05K7/00 , H05K7/14
CPC分类号： H05K7/1492
摘要： A server rack with vertically stacked shelves is disclosed. The shelves are used for housing loads (e.g. servers) and power supply units. Thus, both the power supply units and the servers are vertically stacked in the rack. An array of vertical and horizontal busses is secured to the back side of the server rack to electrically couple the servers with the power supply units. The arrangement of the PSUs and the busses provides for uniform current density across the server rack. The devices placed on the shelves are accessible and serviceable from the front of the server rack. The server rack can be placed within or secured to a device, system or a server room in a vertical orientation, a horizontal orientation or at an angle.
摘要翻译：公开了一种具有垂直堆叠的货架的服务器架。货架用于外壳负载（如服务器）和电源单元。因此，电源单元和服务器都垂直地堆叠在机架中。一系列垂直和水平总线固定在服务器机架的背面，以将服务器与电源单元电连接。 PSU和总线的布置提供了跨服务器机架的均匀电流密度。放置在货架上的装置可从服务器机架的前部进行访问和维修。服务器机架可以放置在设备，系统或服务器机房内或垂直方向，水平方向或以一定角度固定。

7. 发明授权

US09948094B1 Power level switching circuit for a dual port adapter 有权
公开(公告)号：US09948094B1
公开(公告)日：2018-04-17
申请号：US14591484
申请日：2015-01-07
申请人： GOOGLE INC.
发明人： Honggang Sheng , Choon Ping Chng
IPC分类号： H02J1/00 , H02J3/14
CPC分类号： H02J1/00 , H02J1/08
摘要： A power brick includes a first port configured to provide power to a first computing device, a second port configured to provide power to a second computing device, a first switch coupled to the first port and configured to select one of a first power configuration and a second power configuration based on a load associated with the second port, and a second switch coupled to the second port and configured to select one of the first power configuration and the second power configuration based on the load associated with the second port.

8. 发明授权

US09439327B1 Vertical tray structure for rack in data center 有权
公开(公告)号：US09439327B1
公开(公告)日：2016-09-06
申请号：US14600480
申请日：2015-01-20
申请人： Google Inc.
发明人： Honggang Sheng , Sangsun Kim
IPC分类号： H05K7/20
CPC分类号： H05K7/20572 , H05K7/207 , H05K7/20836
摘要： Systems and methods are provided for cooling electronic equipment in a data center. Ambient air is vertically circulated from a workspace across a plurality of rack-mounted electronic devices. The electronic devices are located in a plurality of trays such that each tray has a major plane that is substantially parallel to a side plane of the rack. The circulated air is cooled with a heat exchanger that is connected to a vertical end of the rack via a sealed interface. Multiple racks can be arrayed in a distributed cooling arrangement, which increases reliability and scalability of the data center.

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