Invention Grant
US08868946B2 Maintaining power to a powered device during a low power mode of the powered device
有权
在受电设备的低功耗模式下维持供电设备的电源
- Patent Title: Maintaining power to a powered device during a low power mode of the powered device
- Patent Title (中): 在受电设备的低功耗模式下维持供电设备的电源
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Application No.: US12807550Application Date: 2010-09-08
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Publication No.: US08868946B2Publication Date: 2014-10-21
- Inventor: Riazdeen Buhari , Martin H. Patoka
- Applicant: Riazdeen Buhari , Martin H. Patoka
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent William B. Kempler; Frederick J. Telecky, Jr.
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/32
Abstract:
A powered device receives electrical power through a data transmission cable from a power supplying device that monitors a load on the data transmission cable and turns off the power to the load if the load is outside of a range. The powered device draws a first current at least part of a time during which the powered device is in a low power mode. The powered device is operable during the low power mode to draw a second current. And the powered device increases and decreases the second current to maintain a sum of the first current and the second current, or a level of a current into the powered device, at least at a minimum level for at least a portion of a cycle time.
Public/Granted literature
- US20120060042A1 Maintaining power through a data transmission cable Public/Granted day:2012-03-08
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