Battery charger

• US 20060250112A1
• Filed: 04/07/2006
• Published: 11/09/2006
• Est. Priority Date: 04/29/2005
• Status: Active Grant

• Current Assignee: Bhanuprasad V. Gorti, Shailesh P. Waikar
• Original Assignee: Bhanuprasad V. Gorti, Shailesh P. Waikar
• Inventors: Gorti, Bhanuprasad V., Waikar, Shailesh P.
• Granted Patent: US 7,570,011 B2
• Time in Patent Office: Days
• US Class Current: 320/128
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 7/007182 in response to battery voltage
• CPC Class Codes: H02J 7/007194 of the battery
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02M 3/1584 with a plurality of power processing stages connected in parallel

Abstract

A charger including a power supply connectable to an outside power source, first and second battery power sources connected to the power supply for providing power to a battery pack, and a controller connected to the first and second battery power sources for controlling the first and second battery power sources. The first and second battery power sources are preferably connected in parallel to the battery.

Claims

1. A charger comprising:

a power supply connectable to an outside power source;

first and second battery power sources connected to the power supply for providing power to a battery pack; and

a controller connected to the first and second battery power sources for controlling the first and second battery power sources.

2. The charger of claim 1, wherein the first and second battery power sources are connected in parallel to the battery.

3. The charger of claim 1, wherein the outside power source is one of the group consisting of a vehicle battery, a generator, and an AC outlet.

4. The charger of claim 1, wherein power outputs of the first and second battery power sources are not synchronized.

5. The charger of claim 1, wherein the first and second battery power sources respectively provide first and second variable current outputs.

6. The charger of claim 5, wherein the first and second variable current outputs are not synchronized.

7. The charger of claim 1, wherein the controller receives a temperature signal from the battery pack.

8. The charger of claim 1, further comprising a third battery power source controlled by the controller, the third battery power source being connected to the power supply and providing power to the battery pack

9. The charger of claim 8, wherein the first, second and third battery power sources respectively provide first, second and third variable current outputs.

10. The charger of claim 9, wherein the first, second and third variable current outputs are not synchronized.