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公开(公告)号：US10298138B2
公开(公告)日：2019-05-21
申请号：US15693393
申请日：2017-08-31
Applicant: Google LLC
Inventor： Liang Jia , Honggang Sheng , Srikanth Lakshmikanthan
Abstract: 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.
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公开(公告)号：US09967998B1
公开(公告)日：2018-05-08
申请号：US15179390
申请日：2016-06-10
Applicant: Google LLC
Inventor： Sangsun Kim , Honggang Sheng , Ken Krieger
CPC classification number: H05K7/1492
Abstract: 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.
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公开(公告)号：US10327354B1
公开(公告)日：2019-06-18
申请号：US16290520
申请日：2019-03-01
Applicant: Google LLC
Inventor： Sangsun Kim , Honggang Sheng , Ken Krieger
Abstract: 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.
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公开(公告)号：US10193452B2
公开(公告)日：2019-01-29
申请号：US15853338
申请日：2017-12-22
Applicant: GOOGLE LLC
Inventor： Honggang Sheng , Choon Ping Chng
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.
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公开(公告)号：US10225948B1
公开(公告)日：2019-03-05
申请号：US15943755
申请日：2018-04-03
Applicant: Google LLC
Inventor： Sangsun Kim , Honggang Sheng , Ken Krieger
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20180123463A1
公开(公告)日：2018-05-03
申请号：US15853338
申请日：2017-12-22
Applicant: GOOGLE LLC
Inventor： Honggang Sheng , Choon Ping Chng
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.
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公开(公告)号：US12125631B2
公开(公告)日：2024-10-22
申请号：US16978924
申请日：2019-08-05
Applicant: Google LLC
Inventor： Chao Fei , Honggang Sheng , Douglas Osterhout , Liang Jia , Srikanth Lakshmikanthan
CPC classification number: H01F27/289 , H01F27/361 , H01F27/38 , H02M1/44 , H02M7/04
Abstract: Shielded electrical transformers and power converters using those transformers are disclosed. In some implementations, a shielded electrical transformer includes a magnetic core, a primary winding, a first secondary winding, and a second secondary winding. The transformer includes a first shielding winding that has a same voltage potential direction as the primary winding and is connected in series with the primary winding to carry current that passes through the primary winding. The transformer also includes a second shielding winding that has a voltage potential direction opposite the primary winding and is connected from primary ground to a floating terminal. The first secondary winding, the second secondary winding, the first shielding winding, and the second shielding winding can each have an approximately equal number of turns.
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公开(公告)号：US20220029530A1
公开(公告)日：2022-01-27
申请号：US17296882
申请日：2020-03-26
Applicant: Google LLC
Inventor： Yiming Li , Shuo Wang , Honggang Sheng , Douglas Osterhout , Srikanth Lakshmikanthan
Abstract: An example power adapter includes a rectifier configured to convert an input alternating current (AC) power signal on an AC bus into an input direct current (DC) power signal on an input DC bus; a split differential mode (DM) choke connected to the input DC bus, wherein the split DM choke comprises a first DM choke on a high side of the input DC bus and a second DM choke on a low side of the input DC bus; and a switched mode power converter configured to output, using the input DC power signal, an output DC power signal on an output DC bus.
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公开(公告)号：US20210366647A1
公开(公告)日：2021-11-25
申请号：US16978924
申请日：2019-08-05
Applicant: Google LLC
Inventor： Chao Fei , Honggang Sheng , Douglas Osterhout , Liang Jia , Srikanth Lakshmikanthan
Abstract: Shielded electrical transformers and power converters using those transformers are disclosed. In some implementations, a shielded electrical transformer includes a magnetic core, a primary winding, a first secondary winding, and a second secondary winding. The transformer includes a first shielding winding that has a same voltage potential direction as the primary winding and is connected in series with the primary winding to carry current that passes through the primary winding. The transformer also includes a second shielding winding that has a voltage potential direction opposite the primary winding and is connected from primary ground to a floating terminal. The first secondary winding, the second secondary winding, the first shielding winding, and the second shielding winding can each have an approximately equal number of turns.
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公开(公告)号：US20200220368A1
公开(公告)日：2020-07-09
申请号：US16242517
申请日：2019-01-08
Applicant: Google LLC
Inventor： Chao Fei , Honggang Sheng , Douglas Osterhout , Srikanth Lakshmikanthan
Abstract: An adapter can include a voltage doubler rectifier, a first stage converter, and a second stage converter. The voltage doubler rectifier can have a switch and can be configured to rectify a received voltage in response to the switch being in a first position, and to rectify and effectively double the received voltage in response to the switch being in a second position. The first stage converter can be coupled to the voltage doubler rectifier and can be a first type of converter. The first type of converter can be either an isolated converter or a non-isolated converter. The second stage converter can be coupled to the first stage converter and can be a second type of converter. The second type of converter can be either the isolated converter or the non-isolated converter. The second type of converter can be different from the first type of converter.
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