Title:
CHARGING SYSTEM, CHARGER AND CHARGING METHOD
Document Type and Number:
Japanese Patent JP2018033277
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a charging system not causing a user to feel incongruity on a charge state.SOLUTION: A battery pack 1 includes: a first detection unit 11 which detects the charge state of a secondary battery 10; a first control unit 12 which determines a full charge state of the secondary battery 10; and a first presentation unit 13 which presents a charge state. A charger 2 includes: a second detection unit 21 which detects the full charge state of the secondary battery 10; a power supply unit 22 which supplies to the secondary battery 10 a charge current of a predetermined level, and if the second detection unit 21 detects the full charge state of the secondary battery 10, supplies a charge current decreased from a predetermined level to the secondary battery 10 at least during a time when the first detection unit 11 can detect a decrease amount from the maximum value of a charge voltage; and a second presentation unit 24 which presents a charge state. The first detection unit 12 has a set threshold in order not to detect the full charge state earlier than the detection of the full charge state of the secondary battery 10 by the second detection unit 11.SELECTED DRAWING: Figure 1
Inventors:
FUJIHIRA HIROSHI
FUJIMARU KAZUHIDE
FUJIMARU KAZUHIDE
Application Number:
JP2016165714A
Publication Date:
March 01, 2018
Filing Date:
August 26, 2016
Export Citation:
Assignee:
JVC KENWOOD CORP
International Classes:
H02J7/10; H01M10/44; H01M10/48
Attorney, Agent or Firm:
Sakai International Patent Office
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