公开(公告)号：US20180173265A1

公开(公告)日：2018-06-21

申请号：US15872109

申请日：2018-01-16

Applicant: Nokia Technologies Oy

Inventor： Pekka LEINONEN ,  Kai INHA ,  Pekka TALMOLA ,  Timo TOIVOLA ,  Teemu HELENIUS ,  Seppo JARVENSIVU ,  Kristian VAAJALA ,  Tino HELLBERG

IPC: G05F3/02 ,  H01R13/70 ,  H01R13/66 ,  G06F13/40

CPC classification number: G05F3/02 ,  G06F13/409 ,  H01R13/665 ,  H01R13/70 ,  Y02D10/14 ,  Y02D10/151

Abstract: Apparatus embodiments of the invention are disclosed for requesting power via a wired interface. In example embodiments, a pull-down circuit in the apparatus acting as a power consumer when there is no energy in the apparatus, is connected via a configuration line over a cable to a power provider device. The apparatus may be in a power down mode, it may have an empty battery, or it may have no battery. The pull-down circuit is configured to use energy from the configuration line to pull down a voltage on the configuration line, to signal the power provider device to provide power over another line of the cable to the apparatus.