Power delivery system

• US 10,020,665 B2
• Filed: 05/20/2014
• Issued: 07/10/2018
• Est. Priority Date: 05/20/2014
• Status: Active Grant

• Current Assignee: Tahoe Research Limited (f/k/a Learndale Limited) (Vector Capital Corporation)
• Original Assignee: Intel Corporation
• Inventors: Uan-Zo-Li, Alexander B., Leung, Patrick K., Schiff, Tod F., Lester, Scot
• Primary Examiner(s): Berhanu, Samuel
• Assistant Examiner(s): RANKINE, TARIKH KANEM
• Application Number:
  US14/282,059
• Publication Number:
  US 20150340897A1
• Time in Patent Office: 1,512 Days
• Field of Search: 320103
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 7/0071 with a programmable schedule
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

An electronic apparatus may include a charger device to obtain information relating to a first battery, and to set a limit of a battery charge current of a second battery based on the obtained information.

Claims

1. An electronic apparatus comprising:

a load;

a processor to perform an operation on the load; and

a charger device to obtain information relating to a first battery, and to set a limit of a battery charge current to a second battery based on a measured battery current of the first battery, wherein the charger device is to determine the battery charge current to the second battery based at least in part on a difference between the measured battery current of the first battery and a maximum sustained output current value of the first battery, wherein the charger device is to control the battery charge current to the second battery such that the battery charge current is to exceed the set limit of the battery charge current to the second battery based on a discharge current of the second battery.

2. The electronic apparatus of claim 1, wherein the charger device includes a battery charger to receive information of the battery charge current and to charge the second battery based on the battery charge current information.

3. The electronic apparatus of claim 1, wherein the information includes information of a temperature of the first battery.

4. The electronic apparatus of claim 1, wherein the charger device is to control the battery charge current to exceed the set limit of the battery charge current to the second battery based on a load voltage.

14. The electronic apparatus of claim 3, wherein the charger device is to set the limit of the battery charge current to the second battery based at least in part on the temperature of the first battery.

5. An electronic apparatus comprising:

a load;

a processor to perform an operation on the load; and

logic, at least a portion of which is hardware, to obtain information relating to a first battery, and to set a limit of a battery charge current to a second battery based on a measured battery current of the first battery and a temperature of the first battery, wherein the logic includes a controller to determine the battery charge current to the second battery, wherein the controller is to determine the battery charge current to the second battery based at least in part on a difference between the measured battery current of the first battery and a maximum sustained output current value of the first battery, and wherein the logic is to control the battery charge current to the second battery such that the battery charge current is to exceed the set limit of the battery charge current to the second battery based on a discharge current of the second battery.

6. The electronic apparatus of claim 5, wherein the logic includes a battery charger to charge the second battery based on the set battery charge current.

7. The electronic apparatus of claim 5, wherein the logic includes a battery charger to receive information of the battery charge current and to charge the second battery based on the battery charge current information.

8. The electronic apparatus of claim 5, wherein the information includes information of the temperature of the first battery.

9. The electronic apparatus of claim 5, wherein the logic to control the battery charge current is to exceed the set limit of the battery charge current to the second battery based on a load voltage.

15. The electronic apparatus of claim 8, wherein the logic is to set the limit of the battery charge current to the second battery based at least in part on the temperature of the first battery.

10. An electronic system comprising:

a first component having a first battery; and

a second component having a second battery, the second component to detach from the first component and to couple to the first component, the second component including;

a load,

a processor to perform an operation with respect to the load, and

a charger device to obtain information relating to the first battery, and

to set a limit of a battery charge current to a second battery based on a measured battery current of the first battery and a temperature of the first battery, wherein the charger device is to determine the battery charge current to the second battery based at least in part on a difference between the measured battery current of the first battery and a maximum sustained output current value of the first battery, wherein the charger device is to control the battery charge current to the second battery such that the battery charge current is to exceed the set limit of the battery charge current to the second battery based on a discharge current of the second battery.

11. The electronic system of claim 10, wherein the charger device includes a controller to determine the battery charge current.

12. The electronic system of claim 11, wherein the charger device includes a battery charger to receive information of the battery charge current and to charge the second battery based on the battery charge current information.

13. The electronic system of claim 10, wherein the charger device to control the battery charge current is to exceed the set limit of the battery charge current to the second battery based on a load voltage.