DYNAMIC CHARGING OF A RECHARGEABLE BATTERY

• US 20140306529A1
• Filed: 04/12/2013
• Published: 10/16/2014
• Est. Priority Date: 04/12/2013
• Status: Abandoned Application

• Current Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Original Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Inventors: Markhovsky, Felix, Yin, Philip, Razdan, Ashutosh
• Application Number:
  US13/862,130
• Publication Number:
  US 20140306529A1
• Time in Patent Office: Days
• US Class Current: 307/31
• 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

Abstract

An apparatus for charging of a rechargeable battery. The apparatus includes a rechargeable battery, a controller and a circuitry. The circuitry is operable to receive power from a power source. The circuitry is configured to provide power to the rechargeable battery and to other components. The controller is configured to control the circuitry to increase power to the rechargeable battery in response to a decrease in power consumption associated with the other components.

Claims

1. An apparatus comprising:

a rechargeable battery;

a circuitry operable to receive power from a power source, the circuitry configured to provide power to the rechargeable battery and to other electrical components; and

a controller configured to control the circuitry to increase power to the rechargeable battery in response to a decrease in power consumption associated with the other electrical components.

2. The apparatus of claim 1, wherein power from the power source is selectable using the controller to maintain electrical connection in the power source through a fuse of the power source.

3. The apparatus of claim 1 further comprising:

a monitoring circuit configured to monitor power consumption associated with the other electrical components.

4. The apparatus of claim 1 further comprising:

a monitoring circuit configured to determine charge state associated with the rechargeable battery, wherein the controller is further configured to cause the circuitry to provide a substantially constant current to the rechargeable battery if charge level associated with the rechargeable battery is below a threshold, and wherein the controller is further configured to cause the circuitry to provide a substantially constant voltage to the rechargeable battery if the charge level associated the rechargeable battery is above the threshold.

5. The apparatus of claim 1, wherein the apparatus is a portable storage device.

6. The apparatus of claim 5, wherein the portable storage device comprises a hard drive or a solid state drive.

7. The apparatus of claim 1, wherein the apparatus is a portable electronic device selected from a group consisting of mobile phone, smart phone, digital camera, portable media player, and tablet computer.

8. The apparatus of claim 1, wherein the other electrical components perform a with data transmission operation.

9. The apparatus of claim 1, wherein the circuitry comprises an interface selected from a group consisting of universal serial bus (USB), Thunderbolt, Firewire, and serial ATA (SATA).

10. A method comprising:

receiving power from a power source for a device;

providing a first power level to a rechargeable battery of the device during a first operational mode of the device; and

providing a second power level, higher than the first power level, to the rechargeable battery during a second operational mode.

11. The method of claim 10 further comprising:

monitoring power consumption associated with the device; and

selecting a power level for charging the rechargeable battery to maintain electrical connection in a fuse of the power source.

12. The method of claim 11, wherein the power level for charging the rechargeable battery circuit is the difference between the power from the power source and the power consumption associated with the device.

13. The method of claim 10, wherein the first operational mode comprises transmitting data to or from the device.

14. The method of claim 10, wherein power is received via an interface compliant with universal serial bus (USB), Thunderbolt, Firewire, or serial ATA (SATA).

15. The method of claim 10 further comprising:

dynamically adjusting the first power level and the second power level in response to a change in power consumption of the device.

16. The method of claim 10 further comprising:

determining a charge state associated with the rechargeable battery;

providing a substantially constant current to the rechargeable battery if a charge level associated with the rechargeable battery is below a threshold; and

providing a substantially constant voltage to the rechargeable battery if the charge level associated with the rechargeable battery is above the threshold.

17. The method of claim 10, wherein the device is a portable storage device or a smart phone.

18. The method of claim 10, wherein the second power level is at least 1.1 times the first power level.

19. A device comprising:

a rechargeable battery;

an interface operable to receive power from a power source and to provide power to the rechargeable battery and to other electrical components of the device; and

a controller configured to dynamically control an amount of power received from the power source, the controller is further configured to cause the interface to charge the rechargeable battery at a faster rate when the other electrical components operate at less than a maximum power load in comparison to when the other electrical components operate at the maximum power load.

20. The apparatus of claim 19, wherein the controller is configured to cause the interface to provide a higher power to the rechargeable battery in response to a drop in power consumption associated with completion of a data transmission operation.

21. The apparatus of claim 19 further comprising:

a monitoring circuit configured to monitor power consumption associated with the other electrical components of the device.

22. A controller including a computer readable medium storing instructions therein that when executed implement a method comprising:

receiving electrical power from a power source for a device;

providing a first power level from the power source to a rechargeable battery circuit of the device during a first operational mode of the device; and

providing a second power level, higher than the first power level, from the power source to the rechargeable battery circuit during a second operational mode of the device.

23. The controller of claim 22, wherein the method further comprises:

monitoring power consumption associated with the device; and

selecting the power level for charging the rechargeable battery circuit, wherein the power is selected to maintain electrical connection in a fuse of the power source.