BATTERY VOLTAGE DOUBLER CHARGING CIRCUIT AND MOBILE TERMINAL

Title:

BATTERY VOLTAGE DOUBLER CHARGING CIRCUIT AND MOBILE TERMINAL

Document Type and Number:

WIPO Patent Application WO/2017/071280

Kind Code:

A1

Abstract:

A battery voltage doubler charging circuit and a mobile terminal, the charging circuit comprising: a charging port (301), a high-voltage charging unit (302), a low-voltage charging unit (303), a battery pack (304) and a system (305), wherein the battery pack (304) comprises a primary battery (3041) and at least one secondary battery (3042); the high-voltage charging unit (302) and the low-voltage charging unit (303) are respectively connected to the charging port (301), and the low-voltage charging unit (303) is respectively connected to the system (305) and the battery pack (304); the high-voltage charging unit (302) is connected to the battery pack (304); during fast charging, the primary battery (3041) and each of the secondary batteries (3042) are switched to a series arrangement, the charging voltage is transmitted to the high-voltage charging unit (302) and the low-voltage charging unit (303) by means of the charging port (301), and the high-voltage charging unit (302) charges the primary battery (3041) and each of the secondary batteries (3042); meanwhile, the system (305) is powered by the low-voltage charging unit (303); when the charging is completed, the primary battery (3041) and each of the secondary batteries (3042) are switched to a parallel arrangement to supply power to the system (305). This battery voltage doubler charging circuit is capable of solving the problem wherein excessive heat is generated in the battery main body during charging.

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Inventors:

KONG FANBO (CN)

Application Number:

PCT/CN2016/088217

Publication Date:

May 04, 2017

Filing Date:

July 01, 2016

Export Citation:

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Assignee:

LE HOLDINGS BEIJING CO LTD (CN)
LEMOBILE INFORMATION TECH (BEIJING) CO LTD (CN)

International Classes:

H02J7/02

Foreign References:

CN205141721U	2016-04-06
CN103199596A	2013-07-10
CN1263364A	2000-08-16
US20010012794A1	2001-08-09
CN1797893A	2006-07-05

Attorney, Agent or Firm:

BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)

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