Title:
HIGH-ACCURACY BALANCE CHARGER
Document Type and Number:
WIPO Patent Application WO/2018/023718
Kind Code:
A1
Abstract:
A high-accuracy balance charger (100) comprises a dynamic buck circuit (102), a charging circuit (103), a main control circuit (104), a voltage sampling circuit (105), a current sampling circuit (106), and a high-accuracy reference voltage circuit (107). The dynamic buck circuit (102) is configured to provide different controllable dynamic voltages for the main control circuit (104). The high-accuracy reference voltage circuit (107) is configured to provide a high-accuracy voltage reference for the main control circuit (104). The charging circuit (103) is controlled by the main control circuit (104) and is configured to charge a plurality of batteries connected in series. The voltage sampling circuit (105) is configured to sample voltages of different battery charging ports of the charging circuit (103). The current sampling circuit (106) is configured to sample a current of the charging circuit (103). The main control circuit (104) is configured to receive a voltage sampling signal and a current sampling signal and controls, according to the aforementioned sampling signals, the charging circuit (103) to charge the batteries. The high-accuracy balance charger (100) can simultaneously charge a plurality of lithium batteries and has advantages of fast charging, high voltage accuracy, good voltage consistency, and high balance.
Inventors:
HAN XINGFENG (CN)
Application Number:
PCT/CN2016/093562
Publication Date:
February 08, 2018
Filing Date:
August 05, 2016
Export Citation:
Assignee:
HAN XINGFENG (CN)
International Classes:
H02J7/00
Foreign References:
| CN101233663A | 2008-07-30 | |||
| CN1858935A | 2006-11-08 | |||
| CN103838289A | 2014-06-04 | |||
| CN103066671A | 2013-04-24 | |||
| US20140062494A1 | 2014-03-06 |
Attorney, Agent or Firm:
SHENZHEN KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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