Electronic device having multiple current outputs

• US 20050093513A1
• Filed: 11/03/2003
• Published: 05/05/2005
• Est. Priority Date: 11/03/2003
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Bobb, Samuel M., Rock, Charles H., Herbener, Kathryn W., Pearson, Roger A.
• Application Number:
  US10/701,286
• Publication Number:
  US 20050093513A1
• Time in Patent Office: Days
• US Class Current: 320/116
• CPC Class Codes: H02J 9/005 using a power saving mode for copiers G03G15/5004

Abstract

Embodiments of an electronic device and method are disclosed herein. One embodiment of the electronic device comprises a power supply and a processor circuit. The power supply comprises a supply input and a supply output, the supply output suppling a first power when the supply input is at a first voltage and a second power when the supply input is at a second voltage. The processor circuit comprises a processor circuit power input and a processor circuit output. The processor circuit power input is operatively connectable to the supply output and the processor circuit output is operatively connectable to the supply input. The first voltage is present at the supply input when the processor circuit output is operatively connected to the supply input.

Claims

1. An electronic device comprising:

a power supply comprising a supply input and a supply output, said supply output supplying a first level of power when said supply input is at a first voltage, and said supply output supplying a second level of power when said supply input is at a second voltage;

a processor circuit comprising a processor circuit power input and a processor circuit output, said processor circuit power input operatively connectable to said supply output, said processor circuit output operatively connectable to said supply input,

said first voltage being present at said supply input when said processor circuit output is operatively connected to said supply input.

2. The electronic device of claim 1, wherein said second voltage is present at said supply input when said processor circuit output is not operatively connected to said supply input.

3. The electronic device of claim 1, and further comprising at least one processing unit, said at least one processing unit comprising at least one line that provides an indication as to whether said processing unit is electrically connected to said processor circuit, said at least one line operatively connectable to said processor circuit output.

4. The electronic device of claim 1, and further comprising at least one processing unit, said at least one processing unit comprising at least one line that provides an indication as to whether said processing unit is active, said at least one line operatively connectable to said processor circuit output.

5. The electronic device of claim 1, and further comprising a monitoring circuit, said monitoring circuit output providing said first voltage when at least one line provides an indication that at said least one processing unit is electrically connected to said processor circuit and said at least one processing unit is active.

6. The electronic device of claim 1, wherein a first current is able to be supplied by said power supply when said supply input is at a first voltage, and wherein a second current is able to be supplied by said power supply when said supply input is at a second voltage.

7. An electronic device comprising:

a processor circuit;

a first socket, wherein a first processing unit is connectable to said first socket;

a power supply connectable to said first socket, said power supply able to supply a first current level to said first socket when said first processing unit is not connected to said first socket, and a second current level when said first processing unit is connected to said first socket.

8. The electronic device of claim 7, and further comprising at least one second socket, wherein at least one second processing unit is connectable to said at least one second socket, and wherein said first current level is supplied by said power supply to said at least one second socket when said at least one second processing unit is not connected to said at least one second socket.

9. The electronic device of claim 8, wherein said second current level is supplied to said first socket and said at least one second socket if said first processor is connected to said first socket or if said at least one second processor is connected to said at least one second socket.

10. The electronic device of claim 8, wherein a third current level is supplied to said first socket and said at least one second socket if said first processor is connected to said first socket and said at least one second processor is connected to said at least one second socket.

11. The electronic device of claim 7, wherein said first current is supplied by said power supply when said first processing unit is not active.

12. The electronic device of claim 8, wherein said first current is supplied by said power supply when said at least one second processing unit is not active.

13. The electronic device of claim 9, wherein said second current level is supplied by said power supply when said first processing unit is connected to said first socket and said at least one second processing unit is connected to said at least one second socket and said first processing unit is active and said at least one second processing unit is active.

14. The electronic device of claim 8, wherein a third current is supplied by said power supply when said first processing unit is active and said at least one second processing unit is active.

15. The electronic device of claim 7, wherein said first current level is supplied by said power supply to said first socket when said first processing unit is not active;

and said second current level is supplied by said power supply to said first socket when said first processing unit is connected to said first socket and said first processing unit is active.

16. A method for providing power to a processor circuit, said processor circuit comprising at least one location for a processing unit to connect thereto, said method comprising:

providing a first level of power to said processor circuit if a processing unit is connected to said at least one location; and

providing a second level of power to said processor circuit if no processing unit is connected to said at least one location;

said first level of power being greater than said second level of power.

17. The method of claim 16, wherein said providing a first level of power further comprises providing a first level of power to said processor circuit if said at least one processing unit is active.

18. The method of claim 16, wherein said providing a second level of power further comprises providing a second level of power to said processor circuit if said at least one processing unit is not active.

19. The method of claim 16, wherein said processor circuit is operatively connectable to a second circuit and wherein said providing a first level of power to said processor circuit further comprises providing a first level of power to said processor circuit if said processor circuit is connected to said second circuit.

20. The method of claim 16, wherein said processor circuit is operatively connectable to a second circuit and wherein said providing a second level of power further comprises providing a second level of power to said processor circuit if a processor circuit is not connected to said second circuit.

21. A method for providing power to a processor circuit from a power supply, said processor circuit comprising at least two locations for processing units to connect thereto, said method comprising:

providing a first level of power to said processor circuit if a first processing unit is connected to said a first location and a second processing unit is connected to a second location; and

providing a second level of power to said processor circuit if no processing units are located in either of said at least two locations;

said first level of power being greater than said second level of power.

22. The method of claim 21, wherein said providing a first level of power further comprises providing a first level of power to said processor circuit if said first processing unit is active and said second processing unit is active.

23. The method of claim 21, wherein said providing a second level of power further comprises providing a second level of power to said processor circuit if said first processing unit or said second processing unit is inactive.

24. The method of claim 21 and further comprising providing a third level of power to said processor circuit if said first processing unit is connected to said first location and no processing unit is connected to said second location.

25. An electronic device comprising:

a circuit means; and

supply means for supplying power to said circuit means, said supply means able to supply a first level of power to said circuit means when a processing means is connected to said circuit means, said supply means able to supply a second level of power to said circuit means when said processing means is not connected to said circuit means, said first level of power being greater than said second level of power.

26. The electronic device of claim 25, further comprising a monitoring means monitors for monitoring whether a processing means connected to said circuit means is active.