MEASURING CABLE RESISTANCE IN SYSTEM FOR PROVIDING POWER OVER COMMUNICATION CABLE
摘要
A system for providing power to a powered device over a communication cable has a cable resistance measuring mechanism that determines values of response signals detected in response to supplying each of at least three reference signals over the communication cable, and determines the resistance of a pair of wires in the cable based on these values. The cable resistance measuring mechanism may be configured for determining resistance of an Ethernet cable that delivers power to the powered device in a Power over Ethernet system.
申请公布号
WO2008100294(A3)
申请公布日期
2008.10.23
申请号
WO2007US22430
申请日期
2007.10.23
申请人
LINEAR TECHNOLOGY CORPORATION;HEATH, JEFFREY, LYNN;STINEMAN, JOHN, ARTHUR, JR.;ROBBINS, STEVE
发明人
HEATH, JEFFREY, LYNN;STINEMAN, JOHN, ARTHUR, JR.;ROBBINS, STEVE