BATTERY CHARGING SYSTEM AND METHOD

• US 20130175978A1
• Filed: 09/12/2012
• Published: 07/11/2013
• Est. Priority Date: 01/06/2012
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: HSIAO, JEN-JUNG
• Application Number:
  US13/611,096
• Publication Number:
  US 20130175978A1
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/007 Regulation of charging or discharging current or voltage
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage

Abstract

A battery charging system includes an adapter and a control device. The adapter is connected between an AC voltage source and a battery. The adapted converts the AC voltage source into a DC voltage to charge the battery. The control device is connected to the adapter and the battery. The control device includes a charge-setting module, a charging current control module, and a charging voltage control module, A plurality of different charging modes is stored in the charging setting module. The charging current control module controls a charging current of the adapter charging the battery according to a chosen charging mode. The charging voltage control module controls a charging voltage of the adapter charging the battery according to the chosen charging mode.

Claims

1. A battery charging system, comprising:

an adapter connected between an alternating current (AC) voltage source and a battery, the adapter converting an AC voltage into a direct current (DC) voltage to charge the battery; and

a control device connected to the adapter and the battery, the control device comprising a charging setting module, a charging current control module, and a charging voltage control module, charging modes stored in the charging setting module, the charging current control module controlling a charging current of the adapter charging the battery according to a chosen charging mode from the charging modes, and the charging voltage control module controlling a charging voltage of the adapter charging the battery according to the chosen charging mode.

2. The battery charging system of claim 1, wherein the charging modes comprises a normal charging mode, and the adapter charges the battery within a normal charging voltage and a normal charging current under the normal charging mode.

3. The battery charging system of claim 2, wherein the charging modes comprises a high power charging mode, the adapter charges the battery within the normal charging voltage and a first charging current under the high power charging mode, and the first charging current is smaller than the normal charging current.

4. The battery charging system of claim 2, wherein the charging modes comprises a long-life charging mode, the adapter charges the battery within a first charging voltage and the normal charging current under the long-life charging mode, and the first charging voltage is smaller than the normal charging voltage.

5. The battery charging system of claim 4, wherein the control device further comprises a monitoring module, the monitoring module comprises a battery capacity monitoring unit, and the battery capacity monitoring unit monitors a power capacity of the battery, and the control device controls the adapter to work in the long-life charging mode when the power capacity of the battery is less than a threshold capacity.

6. The battery charging system of claim 5, wherein the monitoring module further comprises a battery charging times monitoring unit, the battery charging times monitoring unit monitors a number of times the battery has previously been charged, and the control device further controls the adapter to work in the long-life charging mode when the number of times of previous charges is larger than a threshold times.

7. The battery charging system of claim 1, wherein the control device comprises a monitoring module, the monitoring module comprises a charging current monitoring unit, and the charging current monitoring unit monitors the charging current.

8. The battery charging system of claim 7, wherein the control device comprises a charging voltage monitoring unit, and the charging voltage monitoring unit monitors the charging voltage.

9. A battery charging method, comprising:

connecting an adapter to a battery;

providing a DC voltage to the battery to charge the battery by the adapter;

presetting multiple charging modes in a control device, and choosing a charging mode from the charging modes; and

controlling a charging current and a charging voltage of the adapter charging the battery according to the charging mode chosen by the control device.

10. The battery charging method of claim 9, wherein the charging modes comprises a normal charging mode, and the adapter charges the battery within a normal charging voltage and a normal charging current when the normal charging mode is chosen.

11. The battery charging method of claim 10, wherein the charging modes comprises a high power charging mode, the adapter charges the battery within the normal charging voltage and a first charging current when the high power charging mode is chosen, and the first charging current is smaller than the normal charging current.

12. The battery charging method of claim 10, wherein the charging modes comprises a long-life charging mode, the adapter charges the battery within a first charging voltage and the normal charging current when the long-life charging mode is chosen, and the first charging voltage is smaller than the normal charging voltage.

13. The battery charging method of claim 12, wherein the control device comprises a monitoring module, the monitoring module comprises a battery capacity monitoring unit, and the battery capacity monitoring unit monitors a power capacity of the battery, and the control device controls the adapter to work in the long-life charging mode when the power capacity of the battery is less than a threshold capacity.

14. The battery charging method of claim 13, wherein the monitoring module further comprises a battery charging times monitoring unit, the battery charging times monitoring unit monitors a number of times the battery has previously been charged, and the control device controls the adapter to work in the long-life charging mode when the number of times of previous charges is larger than a threshold times.

15. The battery charging method of claim 9, wherein the control device comprises a monitoring module, the monitoring module comprises a charging current monitoring unit, and the charging current monitoring unit monitors the charging current.

16. The battery charging method of claim 15, wherein the control device comprises a charging voltage monitoring unit, and the charging voltage monitoring unit monitors the charging voltage.