Title:
EOC CURRENT SETTING CIRCUIT, CHIP AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/143487
Kind Code:
A1
Abstract:
Embodiments of the present application provide an EOC current setting circuit, a chip and an electronic device. The circuit comprises: a constant current circuit, a constant voltage circuit, a control circuit and a current adjusting circuit; a second input end of the control circuit is connected to n drive signals; the current adjusting circuit has a first output end connected to a first input end of the constant current circuit, and a second output end connected to a second input end of the constant current circuit and a first input end of the constant voltage circuit; a third output end of the current adjusting circuit is connected to a second input end of the constant voltage circuit; a second output end of the constant current circuit is connected to a fourth input end of the control circuit. In the present application, the control circuit controls a drive voltage of the constant voltage circuit or the constant current circuit by means of the n drive signals, a voltage signal outputted by the constant current circuit, and an enable signal EN. During constant current/constant voltage charging, the drive voltage is increased to reduce the mismatch ratio of an EOC current threshold, so that the precision of the EOC current threshold is improved, thereby improving the battery charging effect.
Inventors:
LIU LEI (CN)
YANG YONGHAO (CN)
YANG YONGHAO (CN)
Application Number:
PCT/CN2023/073507
Publication Date:
August 03, 2023
Filing Date:
January 28, 2023
Export Citation:
Assignee:
SHENZHEN INJOINIC TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN114142578A | 2022-03-04 | |||
| CN111934404A | 2020-11-13 | |||
| CN103779906A | 2014-05-07 | |||
| JP2009294981A | 2009-12-17 |
Other References:
YE ZHIHAO, WU XIAOBO, ZHAO MENGLIAN, SUN YUEMING: "Li_ ion Battery Charging Controller Based on Interruptible Constant Voltage-Constant Current Algorithm ", RESEARCH & PROGRESS OF SSE, NANJING DIANZI QIJIAN YANJIUSUO , NANJING, CN, vol. 30, no. 4, 25 December 2010 (2010-12-25), CN , pages 585 - 590, XP093083879, ISSN: 1000-3819
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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