Invention Grant
- Patent Title: LED control for reversable power cable
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Application No.: US17028324Application Date: 2020-09-22
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Publication No.: US11432384B2Publication Date: 2022-08-30
- Inventor: Wei-Cheng Yu , Tsung-Cheng Liao , Chi Che Wu , Andrew Thomas Sultenfuss
- Applicant: Dell Products L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Baker Botts, L.L.P.
- Main IPC: H05B45/32
- IPC: H05B45/32 ; F21V23/00 ; F21Y115/10

Abstract:
A disclosed method for LED control for a detachable reversable power cable includes detecting, at a power source, that a first connector at a first end of the power cable is connected to the power source, triggering, at the power source, a first pulse on a first wire of the power cable that turns off a first LED switch coupled to a first LED on the first connector, disabling the first LED, and triggering, at the power source, a second pulse on a second wire of the power cable that drives a second LED on a second connector at a second end of the power cable opposite the first end, the second LED being coupled to a second LED switch that is on. The method further includes, responsive to detecting that the second connector is connected to a power sink, modifying a driver path for the second LED.
Public/Granted literature
- US20220095429A1 LED CONTROL FOR REVERSABLE POWER CABLE Public/Granted day:2022-03-24
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