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1. (WO2017152631) POWER-SUPPLY CONTROL DEVICE, POWER SUPPLY SYSTEM, LOAD, AND BASE STATION

Pub. No.:    WO/2017/152631    International Application No.:    PCT/CN2016/103953
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Nov 01 00:59:59 CET 2016
IPC: H04W 52/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHANG, Liyuan
张立元
WAN, Shiyuan
宛世源
YE, Lvhua
叶绿华
Title: POWER-SUPPLY CONTROL DEVICE, POWER SUPPLY SYSTEM, LOAD, AND BASE STATION
Abstract:
Provided are a power-supply control device (200), power supply system (400), load (600), and base station (700). The power-supply control device (200) comprises: a first determining unit (210), used for determining, according to the resistance between the power supply device (420) and the load (600) and the real-time measured current between the power supply device (420) and the load (600), the voltage drop between the power supply device (420) and the load (600); a second determining unit (220), used for adding the voltage drop to the preset input voltage of the load (600) to obtain a theoretical output voltage; said preset input voltage being the difference between the maximum allowable input voltage of the load (600) and the remainder; said remainder being greater than or equal to the output voltage error in the power supply environment in which the power-supply control device (200) and the load (600) are located, and the preset input voltage being greater than or equal to the input voltage corresponding to the allowed maximum power-supply loss; a voltage control unit (230), used for adjusting, according to the theoretical output voltage, the output voltage supplied by the power supply device (420) to the load (600). The power-supply control device (200) reduces cable transmission loss, improving power supply efficiency and saving station operating costs.