Search International and National Patent Collections

1. (WO2018119798) BATTERY CHARGING METHOD, CHARGING SYSTEM AND CHARGER AND BATTERY

Pub. No.:    WO/2018/119798    International Application No.:    PCT/CN2016/112773
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 29 00:59:59 CET 2016
IPC: H02J 7/00
Applicants: SZ DJI TECHNOLOGY CO., LTD.
深圳市大疆创新科技有限公司
Inventors: WANG, Wentao
王文韬
ZHENG, Dayang
郑大阳
TIAN, Jie
田杰
Title: BATTERY CHARGING METHOD, CHARGING SYSTEM AND CHARGER AND BATTERY
Abstract:
A battery charging method, charging system (60) and charger (80), and a battery (90). Charging stages of the battery (90) comprise a first stage (31), a second stage (32), a third stage (33) and a fourth stage (34) that are sequentially performed. The method comprises: in the first stage (31), controlling a charging circuit (61) to charge the battery (90) by an output power greater than a rated power (S101); in the second stage (32), controlling the charging circuit (61) to charge the battery (90) by the rated power (S102); in the third stage (33), controlling the charging circuit (61) to charge the battery (90) by a pulse current (S103); and in the fourth stage (34), controlling the charging circuit (61) to charge the battery (90) by a constant voltage (S104). The method effectively shortens the charging time of the first stage (31) and the charging time of the fourth stage (34) for the battery (90), and does not require a charger of a larger output power for charging the battery (90), reducing costs of a charger as well as achieving fast charging of the battery (90).