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1. 发明授权

US10466768B2 Power sourcing equipment chip, and power over ethernet device and method 有权
公开(公告)号：US10466768B2
公开(公告)日：2019-11-05
申请号：US15581977
申请日：2017-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： Shiyong Fu , Yan Zhuang , Rui Hua , Jianguang Yang , Xueqi Chen , Haifei Wang
IPC分类号： G06F1/32 , G06F1/3287 , H04L12/10 , G06F1/26 , H04L12/40 , G06F1/3209 , G06F1/3296
摘要： A power sourcing equipment (PSE) chip, and a Power over Ethernet (PoE) device and method are provided, which can determine a status that a peer end is connected to a powered device (PD) when four cable pairs are used to supply power. The PSE chip includes a channel controller, a first channel detector, and a second channel detector. The channel controller sends detection voltages along a first and a second groups of cable pairs in an Ethernet twisted pair; determines a first impedance and a second impedance according to the detection voltages and corresponding currents that are detected; and determines that a first group or a second group of cable pairs is connected to a valid PD according to the impedances and a preset range.

2. 发明授权

US09268383B2 Power over ethernet method, apparatus, device, and system 有权
标题翻译：通过以太网方法，设备，设备和系统供电
公开(公告)号：US09268383B2
公开(公告)日：2016-02-23
申请号：US14464514
申请日：2014-08-20
申请人： Huawei Technologies Co., Ltd.
发明人： Rui Hua , Ying Gu , Zhangqing He , Jianguang Yang , Tongqiang Cao , Anhu Huang
IPC分类号： G06F1/00 , G06F1/26 , H04L12/10 , H04L12/413
CPC分类号： G06F1/26 , H04L12/10 , H04L12/413
摘要： The application pertains to a method for an Ethernet power sourcing equipment to provide electric power to one or more Ethernet powered devices. A controlling apparatus determines a power supply mode of the Ethernet power sourcing equipment, and determines high-power Ethernet powered device(s) and low-power Ethernet powered device(s) among the Ethernet powered devices. The controlling apparatus sets a power supply priority for each of the Ethernet powered devices. In one power supply mode, the power supply priority of a high-power Ethernet powered device is same as or lower than the lowest priority of the low-power Ethernet powered device(s). When a new Ethernet powered device is connected to the Ethernet power sourcing equipment, the controlling apparatus determines whether to supply electric power to the new Ethernet powered device according to its power supply priority.
摘要翻译：该应用涉及以太网供电设备向一个或多个以太网供电的设备提供电力的方法。控制设备确定以太网供电设备的电源模式，并确定以太网供电设备中的大功率以太网供电设备和低功率以太网供电设备。控制装置为每个以太网供电设备设置电源优先级。在一个电源模式下，大功率以太网供电设备的电源优先级低于或低于低功率以太网供电设备的最低优先级。当新的以太网供电设备连接到以太网供电设备时，控制设备根据其电源优先级确定是否向新的以太网供电设备供电。

3. 发明申请

US20170235358A1 Power Sourcing Equipment Chip, and Power Over Ethernet Device and Method 审中-公开
公开(公告)号：US20170235358A1
公开(公告)日：2017-08-17
申请号：US15581977
申请日：2017-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： Shiyong Fu , Yan Zhuang , Rui Hua , Jianguang Yang , Xueqi Chen , Haifei Wang
IPC分类号： G06F1/32 , H04L12/10
CPC分类号： G06F1/3287 , G06F1/266 , G06F1/3209 , G06F1/3296 , H04L12/10 , H04L12/40045 , H04L12/40182 , Y02D50/30
摘要： A power sourcing equipment (PSE) chip, and a Power over Ethernet (PoE) device and method are provided, which can determine a status that a peer end is connected to a powered device (PD) when four cable pairs are used to supply power. The PSE chip includes a channel controller, a first channel detector, and a second channel detector. The channel controller sends detection voltages along a first and a second groups of cable pairs in an Ethernet twisted pair; determines a first impedance and a second impedance according to the detection voltages and corresponding currents that are detected; and determines that a first group or a second group of cable pairs is connected to a valid PD according to the impedances and a preset range.

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