Title:
POWER SYSTEM, CHARGING METHOD, AND DISCHARGING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/094906
Kind Code:
A1
Abstract:
A power system, a charging method, and a power supply method. The power system comprises a first switch (K1), a second switch (K2), a first switched capacitor circuit (SC1), a second switched capacitor circuit (SC2), an inductive voltage conversion circuit (SL), an input end (Vin), a first charging end (Vc1), and a second charging end (Vc2); an input side (Vdi) of the inductive voltage conversion circuit (SL) is coupled to the input end (Vin); an output side (Vdo) of the inductive voltage conversion circuit (SL) is coupled to the first charging end (Vc1) by means of the first switch (K1), and is coupled to the second charging end (Vc2) by means of the second switch (K2); the first switched capacitor circuit (SC1) is coupled between the input end (Vin) and the first charging end (Vc1); the second switched capacitor circuit (SC2) is coupled between the input end (Vin) and the second charging end (Vc2). Thus, charging of a parallel battery pack is applicable to various charging scenes, thereby improving the charging flexibility of the parallel battery pack and facilitating improvement of the endurance capability of an electronic device.
Inventors:
LI HUI (CN)
SONG JUN (CN)
LIU DESHANG (CN)
XU PENGJU (CN)
SONG JUN (CN)
LIU DESHANG (CN)
XU PENGJU (CN)
Application Number:
PCT/CN2020/127003
Publication Date:
May 12, 2022
Filing Date:
November 06, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J7/34; H02J9/06; H02M3/158
Foreign References:
| CN110741528A | 2020-01-31 | |||
| CN206564475U | 2017-10-17 | |||
| CN109787318A | 2019-05-21 | |||
| CN109861515A | 2019-06-07 | |||
| US20080031023A1 | 2008-02-07 |
Other References:
See also references of EP 4228120A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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