Title:
BATTERY POWER SUPPLY CIRCUIT, DEVICE TO BE CHARGED AND CHARGING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/124588
Kind Code:
A1
Abstract:
A battery power supply circuit (10), comprising: a first battery cell (102), a second battery cell (104), a switch (106), a first switching unit (108) and a second switching unit (110), wherein a first end of the second battery cell (104) is connected to a first end of the second switching unit (110), a second end of the second battery cell (104) is connected to a first end of the switch (106), and a second end of the second switching unit (110) is connected to a second end of the switch (106); a first end of the first battery cell (102) is connected to the second end of the switch (106), the second end of the second battery cell (104) is connected to a first end of the first switching unit (108), and a second end of the first switching unit (108) is connected to the first end of the switch (106); when the switch (106) is conducted and the first switching unit (108) and the second switching unit (110) are in a turned-off state, the first battery cell (102) and the second battery cell (104) are connected in series; and when the switch (106) is turned off and the first switching unit (108) and the second switching unit (110) are in a conductive state, the first battery cell (102) and the second battery cell (104) are connected in parallel. The battery power supply circuit (10) can provide a variety of adaptable charging solutions in the same device to be charged. Also related are a device to be charged and a charging control method.
Inventors:
CHEN SHEBIAO (CN)
ZHANG JUN (CN)
ZHANG JIALIANG (CN)
ZHANG JUN (CN)
ZHANG JIALIANG (CN)
Application Number:
PCT/CN2018/122795
Publication Date:
June 25, 2020
Filing Date:
December 21, 2018
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN105743146A | 2016-07-06 | |||
| CN105743146A | 2016-07-06 | |||
| CN203690968U | 2014-07-02 | |||
| CN105471001A | 2016-04-06 | |||
| US20180026466A1 | 2018-01-25 |
Other References:
See also references of EP 3706282A4
Attorney, Agent or Firm:
SHENZHEN LUNGTIN LIANDING INTELLECTUAL PROPERTY AGENT LTD. (CN)
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