CHARGER

• US 20160359353A1
• Filed: 05/26/2016
• Published: 12/08/2016
• Est. Priority Date: 06/05/2015
• Status: Active Grant

• Current Assignee: FDK Corporation (Fujitsu Limited)
• Original Assignee: FDK Corporation (Fujitsu Limited)
• Inventors: Jia, Jinfeng, Sekiguchi, Kunihisa, Mizoguchi, Yasunari, Teraoka, Hirohito, Suzuki, Hiroshi, Tsuchiya, Katsuki, Foster, Kevin
• Granted Patent: US 10,536,014 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0047 with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/0049 Detection of fully charged condition

Abstract

A charger includes: a charging circuit which receives an electric power from external equipment and charges a secondary battery; a control device which determines a power supply capability of the external equipment on the basis of the electric power that is supplied to the charging circuit from the external equipment; and a display device that displays the power supply capability of the external equipment, which has been determined by the control device.

Claims

1. A charger comprising:

a charging circuit which receives an electric power from external equipment and charges a secondary battery;

a control device which determines a power supply capability of the external equipment on the basis of the electric power that is supplied to the charging circuit from the external equipment; and

a display device that displays the power supply capability of the external equipment, which has been determined by the control device.

2. The charger according to claim 1, wherein the display device displays the power supply capability of the external equipment, in stages by a plurality of indicating lamps.

3. The charger according to claim 2, further comprising a state-of-charge detection circuit which detects a state of charge of the secondary battery, wherein

the display device turns off all of the plurality of indicating lamps on condition that the secondary battery has been charged to a fully charged state.

7. The charger according to claim 1, wherein the control device periodically determines the power supply capability of the external equipment.

4. A charger comprising:

a charging circuit which receives an electric power from external equipment and charges a secondary battery;

a control device which determines a power supply capability of the external equipment on the basis of the electric power that is supplied to the charging circuit from the external equipment, and sets a charging mode of the secondary battery in the charging circuit on the basis of the determined power supply capability of the external equipment; and

a display device that displays the charging mode which has been set by the control device.

5. The charger according to claim 4, wherein the display device displays the charging mode in stages by a plurality of indicating lamps.

6. The charger according to claim 5, further comprising a state-of-charge detection circuit which detects a state of charge of the secondary battery, wherein

the display device turns off all of the plurality of indicating lamps on condition that the secondary battery has been charged to a fully charged state.