Title:
METHOD FOR CHARGING SECONDARY CELL CONTAINED IN SLAVE UNIT OF CORDLESS TELEPHONE
Document Type and Number:
Japanese Patent JP2001275269
Kind Code:
A
Abstract:
To enable charging of a secondary cell by a charger having a relatively simple constitution.
The current of a constant-current charger 10 is supplied to the secondary cell 8 contained in a slave unit 1 of the cordless telephone as a charging current. Receiving times of receiving circuits 3, 6 of the unit 1 connected in parallel with the cell 8 as seen from this charger 10 are changed as the charging time is elapsed to control the charging current of the cell 8.
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Inventors:
OGASAWARA TOMOYUKI
Application Number:
JP2000089263A
Publication Date:
October 05, 2001
Filing Date:
March 28, 2000
Export Citation:
Assignee:
SONY CORP
International Classes:
H02J7/04; H01M10/44; H02J7/00; H04B7/26; H04M1/725; (IPC1-7): H02J7/04; H01M10/44; H04B7/26; H04M1/725
Attorney, Agent or Firm:
Hidekuma Matsukuma
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