Method and apparatus for preventing over-current computer operation from limited power source

• US 20070234087A1
• Filed: 03/29/2006
• Published: 10/04/2007
• Est. Priority Date: 03/29/2006
• Status: Abandoned Application

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Cromer, Daryl, Salembier, James, Rutledge, James
• Application Number:
  US11/394,073
• Publication Number:
  US 20070234087A1
• Time in Patent Office: Days
• US Class Current: 713/310
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C

Abstract

A power adaptor for a computer is limited to draw no more power than would trip an aircraft circuit breaker.

Claims

1. A system, comprising:

a computer; and

at least one power adapter connectable to the computer to supply power thereto, the adapter being configured to engage an outlet of a power supply, power drawn through the adaptor being limited to a predetermined power limit.

2. The system of claim 1, wherein the predetermined power limit is established by a user of the computer or by a computer vendor.

3. The system of claim 1, wherein the power limit is seventy five Watts.

4. The system of claim 3, wherein the computer and/or adaptor determines a power consumption through the adaptor and compares it to the limit.

5. The system of claim 4, wherein if power consumption is below the limit, the computer is permitted to operate as it is operating, and otherwise computer operation is automatically altered to ensure that the limit is not exceeded.

6. The system of claim 5, wherein computer operation is automatically altered by switching to a low power mode.

7. The system of claim 5, wherein computer operation is automatically altered by curtailing battery charging.

8. A method, comprising:

providing an adapter to convert power from a source into a demanded dc power to power a computer;

determining an aircraft circuit breaker trip point; and

limiting power drawn through the adaptor to be below the aircraft circuit breaker trip point.

9. The method of claim 8, wherein the trip point is seventy five Watts.

10. The method of claim 8, wherein if power consumption is below a predetermined limit, the computer is permitted to operate as it is operating, and otherwise computer operation is automatically altered to ensure that the limit is not exceeded.

11. The method of claim 10, wherein computer operation is automatically altered by switching to a low power mode.

12. The method of claim 10, wherein computer operation is automatically altered by curtailing battery charging.

13. A system, comprising:

an adapter including;

means for converting ac power to dc power for use thereof by a computer; and

means for limiting power drawn through the adaptor to be below a predetermined aircraft circuit breaker trip point.

14. The system of claim 13, wherein the means for limiting limits power drawn through the adaptor to be below seventy five Watts.

15. The system of claim 14, wherein if power consumption is below seventy five watts, the computer is permitted to operate as it is operating, and otherwise computer operation is automatically altered.

16. The system of claim 15, wherein computer operation is automatically altered by switching to a low power mode.

17. The system of claim 15, wherein computer operation is automatically altered by curtailing battery charging.