Patent Application
20140164663
This application claims all benefits accruing under 35 U.S.C. §119 from China Patent Application No. CN201210529765.5, filed on Dec. 11, 2012, in the China Intellectual Property Office, the disclosure of which is incorporated herein by reference.
1. Technical Field
The present disclosure relates to computer technologies, and more particularly, to a peripheral component interconnect (PCI) adapter for a computer.
2. Description of Related Art
A computer includes a motherboard with several PCI slots, and a PCI card can be attached into the PCI slot to provide an expansion function for the computer. Normally, a number of the PCI slots in the motherboard is limited, for example, a typical motherboard can only provide three or four PCI slots. However, a user may desire to install more PCI cards to improve function of the computer, however, this is impracticable due to the limited number of the PCI slots.
What is needed, therefore, is to provide a means that solve the problem discussed above.
Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.
Each of the PCI cards may be one selected from a PCI-E card, a PCI-X card, a PCI-AGP card, and a conventional PCI card. In the present embodiment, the first PCI card 41, the second PCI card 42 and the third PCI card 43 are respectively plugged into the first PCI expansion slot 31, the second PCI expansion slot 32 and the third PCI expansion slot 33. It is noted, however, that the PCI cards included in the computer 10 are not limited to the first PCI card 41, the second PCI card 42 and the third PCI card 43 in practice; for example, the computer 10 may include other PCI cards that are plugged into the non-illustrated PCI slots 21 in the motherboard 20. Moreover, the PCI cards 41, 42, 43 may be a video card, a sound card, a memory card, a network card, a TV tuner card, or the like.
The PCI adapter 30 may further include a PCI connector 34, a detection control circuit 35, and an alarm circuit 36. The PCI connector 34 may be plugged into the illustrated PCI slot 21 in the motherboard 20, and is further connected to the first PCI expansion slot 31, the second PCI expansion slot 32 and the third PCI expansion slot 33. The interconnection of the PCI connector 34 and the PCI slot 21 in the motherboard 20 may enable communication between the PCI cards 41, 42, 43 plugged into the PCI expansion slots 31, 32, 33 and the motherboard 20.
The detection control circuit 35 is connected between the PCI expansion slots 31, 32, 33 and the alarm circuit 36. The detection control circuit 35 may detect operation power of the first PCI card 41, the second PCI card 42 and the third PCI card 43, and determine whether the detected operation power exceeds threshold power of the first PCI expansion slot 31, the second PCI expansion slot 32 and the third PCI expansion slot 33. Upon determining that the operation power of one of the PCI cards 41, 42, 43 exceeds the threshold power of the corresponding PCI expansion slot 31, 32, 33, the detection control circuit 35 may implement an alarm control function, for example, the detection control circuit 35 may control the alarm circuit 36 to report a fault alarm.
For example, the alarm circuit 36 may include a buzzer 364 and a plurality of fault indicators including a first indicator lamp 361, a second indicator lamp 362 and a third indicator lamp 363. The indicator lamps 361, 362, 363 and the buzzer 364 are electrically connected to the detection control circuit 35. Each of the indicator lamps 361, 362, 363 corresponds to a respective one of the PCI expansion slots 31, 32, 33.
When the detection control circuit 35 determines the operation power of the first PCI card 41 exceeds the threshold power of the first PCI expansion slot 31, the detection control circuit 35 outputs a first control signal to control the alarm circuit 36 to light the first indicator lamp 361 or to make the first indicator lamp 361 flicker.
When the detection control circuit 35 determines the operation power of the second PCI card 42 exceeds the threshold power of the second PCI expansion slot 32, the detection control circuit 35 outputs a second control signal to control the alarm circuit 36 to light the second indicator lamp 362 or to make the second indicator lamp 362 flicker.
When the detection control circuit 35 determines the operation power of the third PCI card 43 exceeds the threshold power of the third PCI expansion slot 33, the detection control circuit 35 outputs a third control signal to control the alarm circuit 36 to light the third indicator lamp 363 or to make the third indicator lamp 363 flicker.
Moreover, when the detection control circuit 35 determines that the operation power of one of the PCI cards 41, 42, 43 exceeds the threshold power of the corresponding PCI expansion slot 31, 32, 33, the detection control circuit 35 may also output a buzzer control signal to control the alarm circuit 36 to ring the buzzer 364, such that the user of the computer can be aware of the fault alarm.
Optionally, the PCI adapter 30 may further include an alarm switch 37 for enabling or disabling the detection control circuit 35 and the alarm circuit 36, and in addition, the detection control circuit 35 includes a control terminal for receiving an enablement signal or a disablement signal from the alarm switch 37.
For example, the alarm switch 37 may include a three-terminal key 370, the three-terminal key 370 includes a first terminal A being grounded, a second terminal B electrically connected to the control terminal of the detection control circuit 35, and a third terminal C electrically connected to a power voltage VCC. The power voltage can for example be a direct-current (DC) voltage of 5V or 3.3V.
When the three-terminal key 370 is pressed, the second terminal B is electrically connected to the third terminal C, and thus the power voltage VCC is transmitted to the second terminal B; the power voltage VCC serves as the enablement signal and is output to the detection control circuit 35 to enable the alarm control function of the detection control circuit 35.
When the three-terminal key 370 is released, the second terminal B is electrically connected to the first terminal A, and thus a ground voltage is transmitted to the second terminal B; the ground voltage serves as the disablement signal and is output to the detection control circuit 35 to disable the alarm control function of the detection control circuit 35.
In the present embodiment, the PCI adapter 30 can provide the PCI expansion slots 31, 32, 33 for installing more PCI cards 41, 42, 43, and thus the PCI capability of the computer 10 is improved. Moreover, the detection control circuit 35 of the PCI adapter 30 can control the alarm circuit 36 to report a fault alarm when the operation power of the PCI cards 41, 42, 43 exceed the threshold power of the PCI expansion slots 31, 32, 33, with the fault alarm, the user may take some action to avoid the PCI adapter 30 is burned out, and thus reliability of the PCI adapter 30 is also improved.
It is to be understood that the described embodiments are intended to illustrate rather than limit the disclosure. Any elements described in accordance with any embodiments is understood that they can be used in addition or substituted in other embodiments. Embodiments can also be used together. Variations may be made to the embodiments without departing from the spirit of the disclosure. The disclosure illustrates but does not restrict the scope of the disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2012105297655 | Dec 2012 | CN | national |
