CN201845039U - Voltage detecting device - Google Patents
Voltage detecting device Download PDFInfo
- Publication number
- CN201845039U CN201845039U CN201020197084XU CN201020197084U CN201845039U CN 201845039 U CN201845039 U CN 201845039U CN 201020197084X U CN201020197084X U CN 201020197084XU CN 201020197084 U CN201020197084 U CN 201020197084U CN 201845039 U CN201845039 U CN 201845039U
- Authority
- CN
- China
- Prior art keywords
- voltage
- check device
- cpu socket
- unit
- supply unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides a voltage detecting device which is inserted in a slot of a central processing unit of a mainboard to detect the voltage of the slot of the central processing unit. The voltage detecting device comprises a power supply unit and a voltage comparing unit. The power supply unit is coupled to the slot of the central processing unit and receives the working voltage from the mainboard. The voltage comparing unit is coupled to the slot of the central processing unit and the power supply unit. The voltage comparing unit compares the voltage of the slot of the central processing unit to the reference voltage to obtain a comparison result. The voltage detecting device can replace the actual central processing unit to be directly inserted into the slot of the central processing unit of the mainboard, so as to detect the voltage. Furthermore, the voltage detecting device is directly supplied with power by the mainboard, the external power supply is not required additionally, and the automatic detection can be realized.
Description
Technical field
The utility model relates to a kind of pick-up unit, and is particularly related to a kind of voltage check device.
Background technology
In the prior art; central processing unit (centralprocessing unit on need detection motherboards (motherboard); CPU) during the voltage of slot; usually central processing unit directly can be inserted in cpu socket, use the voltage of multimeter manual measurement cpu socket then.Yet,, after the motherboard energising, can have the risk of burning central processing unit if central processing unit is inserted in the cpu socket of bad motherboard.In addition, adopt multimeter to measure not only to be difficult for finding measurement point but also Measuring Time long.
The utility model content
The utility model provides a kind of voltage check device, can solve described problem.
For solveing the technical problem, the technical solution of the utility model is:
The utility model provides a kind of voltage check device, is used to be inserted in the cpu socket of motherboard to detect the voltage of cpu socket.Voltage check device comprises power-supply unit and voltage comparison unit.Power-supply unit couples cpu socket and receives operating voltage from motherboard.Voltage comparison unit couples cpu socket and power-supply unit.The voltage of voltage comparison unit comparison cpu socket and reference voltage are to obtain comparative result.
Compared with prior art, the beneficial effects of the utility model can be:
Compared to prior art, the voltage check device that the utility model provides can replace actual central processing unit directly to be inserted in the cpu socket of motherboard to detect voltage.And the voltage check device that the utility model provides is directly powered by motherboard, need not to connect in addition external power source, and can realize automatic detection.In addition, the test duration of the voltage check device that the utility model provides is short, measuring accuracy height, the operation of being more convenient for.
For described and other purpose, feature and advantage of the present utility model can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the functional block diagram of the voltage check device of a preferred embodiment of the present utility model.
Fig. 2 is the partial circuit diagram of the voltage check device of a preferred embodiment of the present utility model.
Embodiment
Fig. 1 is the functional block diagram of the voltage check device of a preferred embodiment of the present utility model.Fig. 2 is the partial circuit diagram of the voltage check device of a preferred embodiment of the present utility model.Please refer to Fig. 1 and Fig. 2.
The voltage check device 1 that present embodiment provided is used to be inserted in the cpu socket 20 of motherboard 2 to detect the voltage of cpu socket 20.In the present embodiment, voltage check device 1 is used to detect the voltage of the LGA1156 cpu socket of P7 series motherboard.Yet the utility model is not limited thereto.In other embodiments, voltage check device 1 also can be used for detecting the voltage of cpu socket of other type of other type motherboard.
In the present embodiment, voltage check device 1 comprises voltage identification unit 10, power-supply unit 12, voltage comparison unit 14 and display unit 16.Wherein, voltage identification unit 10, power-supply unit 12 and voltage comparison unit 14 couple cpu socket 20, and power-supply unit 12 receives operating voltage Vin from motherboard 2.Voltage comparison unit 14 couples power-supply unit 12.Display unit 16 couples voltage comparison unit 14 and power-supply unit 12.
In the present embodiment, as shown in Figure 1, voltage check device 1 is the circuit board that has analogous shape with central processing unit.The back side of voltage check device 1 is provided with a plurality of pins (figure does not show) and can be inserted in accordingly in the cpu socket 20.
In the present embodiment, the voltage identification unit 10 of voltage check device 1 comprises a plurality of voltage identification (Voltage Identification Digital, VID) pin.After voltage check device 1 was inserted in cpu socket 20, motherboard 2 can provide operating voltage Vin for voltage check device 1 automatically according to the voltage quasi position of those voltage identification pins.In the present embodiment, the number of voltage identification pin is seven.The central processing unit power-supplying circuit of motherboard 2 can compile the voltage identification signal that those voltage identification pins of conversion transmit, and provides operating voltage Vin according to voltage identification signal for voltage check device 1 then.Yet the utility model is not limited thereto.
In the present embodiment, cpu socket 20 is the LGA1156 cpu socket.Therefore, motherboard 2 can provide four groups of voltages (comprising Vcore, VCCPL, VDDQ and VTT) for cpu socket 20.By the characteristics of above-mentioned four groups of voltages as can be known, wherein VCCPL is more stable and magnitude of voltage is bigger.In view of the above, operating voltage Vin can be VCCPL.Yet the utility model is not limited thereto.In other embodiments, operating voltage Vin also can select one of them from VCCPL and VDDQ.Wherein, when VCCPL exists when unusual, voltage check device 1 still can detect unusually, can not influence the accuracy of its detection.
In the present embodiment, the power-supply unit 12 of voltage check device 1 comprises voltage transition element 122.Voltage transition element 122 is coupled to cpu socket 20 and voltage comparison unit 14.Power-supply unit 12 receives operating voltage Vin from motherboard 2.Yet, because the operating voltage Vin that provides of motherboard 2 not necessarily meets the required voltage of voltage comparison unit 14 and display unit 16, therefore, utilize voltage transition element 122 the operating voltage Vin that receives from motherboard 2 can be converted to the required voltage of voltage comparison unit 14 and display unit 16 (for example, 3.3V).At this, voltage transition element 122 for example can be the TPS61028 chip, can be by second pin output of TPS61028 chip via the voltage that operating voltage Vin is converted to.In addition, the required voltage of each element provides by motherboard 2 in the voltage check device 1, need not to be provided with in addition external power source, thus convenient the use.
In the present embodiment, voltage comparison unit 14 receives four groups of voltages (comprising Vcore, VCCPL, VDDQ and VTT) of cpu socket 20, and voltage comparison unit 14 compares itself and reference voltage to obtain comparative result respectively.Then, display unit 16 receives and the demonstration comparative result.Yet the utility model is not limited thereto.In other embodiments, when voltage check device 1 was applied to the cpu socket of other type, voltage comparison unit 14 can compare the voltage of other group number (for example, five groups or seven groups).In addition, as shown in Figure 2, in the present embodiment, reference voltage is obtained by the resistance R dividing potential drop by the operating voltage Vin that motherboard 2 provides.For example, as shown in Figure 2, after three resistance R were connected in series, the one end coupled second pin of the voltage transition element 122 (TPS61028 chip) of power-supply unit 12, and the other end is ground connection then.Then, an end of one of them resistance R is coupled to voltage comparison unit 14 in order to operating voltage Vin is converted to reference voltage.Yet the utility model also is not limited thereto.
In the present embodiment, voltage comparison unit 14 can comprise comparer 141 (for example, LM339APW chip, each LM339APW chip can compare two groups of voltages) and phase inverter 142 (for example, MC74LCX04 chip).In the present embodiment, owing to need relatively four groups of voltages, so the number of comparer 141 is two.Wherein, only illustrate a comparer 141 among Fig. 2 and be used for comparison Vcore and reference voltage.Yet the utility model is not limited thereto.When practical application, the voltage group number that can compare as required is provided with the comparer of different numbers.
In the present embodiment, display unit 16 comprises a plurality of light emitting diodes (light-emitting diode, LED) pilot lamp 160.Yet the utility model is not done any qualification to this.In other embodiments, display unit 16 can comprise the indicator elment (for example, hummer) of other type.
In the present embodiment, the number of light emitting diode lamp 160 is eight, comprising the light emitting diode lamp of four redness and the light emitting diode lamp of four greens.A red light emitting diodes pilot lamp and a green LED pilot lamp are one group, are used to show the comparative result of one group of voltage accordingly.Yet the utility model does not limit the number (for example, can be four) and color (for example, can be blueness or yellow) of light emitting diode lamp 160.Wherein, the light emitting diode lamp L2 that only illustrates the light emitting diode lamp L1 of a redness and a green among Fig. 2 is used to show the comparative result of Vcore.
It below only is the principle of operation of example account for voltage comparing unit 14 with Vcore.In the present embodiment, the reference voltage of the comparer 141 of voltage comparison unit 14 comprises maximum voltage Vmax and minimum voltage Vmin, is connected to the 7th pin and the 4th pin of comparer 141 respectively.In addition, Vcore can be connected to the 5th pin and the 6th pin of comparer 141.The comparative result of Vcore and Vmax and Vcore and Vmin is exported by first pin and second pin of comparer 141 respectively.The final comparative result that comparer 141 obtains is connected to first pin by second pin and exports in the lump by first pin.Yet the utility model is not done any qualification to this.
In the present embodiment, when comparer 141 relatively obtains Vcore behind Vcore and the reference voltage between maximum voltage Vmax and minimum voltage Vmin the time, comparer 141 judgement Vcore are normal.When obtaining Vcore greater than maximum voltage Vmax or less than minimum voltage Vmin after comparer 141 compares Vcore and reference voltage, then comparer 141 judges that Vcore exist unusually.Yet the utility model is not limited thereto.In other embodiments, the reference voltage of comparer 141 can only comprise a magnitude of voltage.At this moment, whether voltage comparison unit 14 can meet the requirements with respect to the domain of walker of reference voltage by judging Vcore, thereby determines whether Vcore is normal.
In the present embodiment, the comparative result that obtains when comparer 141 be Vcore just often, can be by first pin output high level signal.Yet the utility model is not done any qualification to this.In other embodiments, also exportable low level signal.In the present embodiment, red light emitting diodes pilot lamp L1 and green LED pilot lamp L2 can be set to the low level signal driven for emitting lights.Therefore, the high level signal of first pin output becomes low level signal through behind the phase inverter 142, and therefore, the green LED pilot lamp L2 corresponding to Vcore in the display unit 16 is luminous.Red light emitting diodes pilot lamp L1 is then not luminous owing to driven by the high level signal of first pin output.Otherwise the comparative result that obtains when voltage comparison unit 14 is that Vcore exists when unusual, and the red light emitting diodes pilot lamp L1 corresponding to Vcore in the display unit 16 is luminous.Yet the utility model is not limited thereto.In other embodiments, also can red light emitting diodes pilot lamp L1 and green LED pilot lamp L2 be set to the high level signal driven for emitting lights.In actual applications, also can be the different display effects of display unit 16 designs as required.
In addition, in the present embodiment, when comparing other three groups of voltages of cpu socket 20, can obtain other three groups of reference voltages by electric resistance partial pressure as required, and then compare other three groups of reference voltages that voltage is corresponding with it of cpu socket 20 respectively.Wherein, the detection principle of other three groups of voltages of cpu socket 20 and display effect are consistent with detection principle and the display effect of Vcore, so do not repeat them here.
In sum, compared to prior art, the voltage check device that the utility model preferred embodiment is provided can replace actual central processing unit directly to be inserted in the cpu socket of motherboard to detect the voltage of cpu socket.And voltage check device is directly powered by motherboard, need not to connect in addition external power source, and can realize automatic detection.In addition, the test duration of the voltage check device that the utility model preferred embodiment provides is short, and the measuring accuracy height also is convenient to operation.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; anyly know this skill person; in not breaking away from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection domain of the present utility model is as the criterion when looking claims institute restricted portion.
Claims (7)
1. voltage check device, the cpu socket that is used to be inserted in motherboard is characterized in that to detect the voltage of described cpu socket described voltage check device comprises:
Power-supply unit couples described cpu socket and receives operating voltage from described motherboard; And
Voltage comparison unit couples described cpu socket and described power-supply unit, and the voltage of the more described cpu socket of described voltage comparison unit and reference voltage are to obtain comparative result.
2. voltage check device according to claim 1 is characterized in that described power-supply unit comprises voltage transition element, couples described cpu socket and described voltage comparison unit.
3. voltage check device according to claim 1 is characterized in that described voltage check device also comprises display unit, is coupled to described voltage comparison unit, is used to show described comparative result.
4. voltage check device according to claim 3 is characterized in that described display unit comprises a plurality of light emitting diode lamps.
5. voltage check device according to claim 1 is characterized in that described voltage check device also comprises the voltage identification unit, couples described cpu socket.
6. voltage check device according to claim 1, it is characterized in that, described voltage comparison unit comprises comparer and phase inverter, and described comparer couples described cpu socket and described power-supply unit, and described phase inverter couples described comparer and described power-supply unit.
7. voltage check device according to claim 1, it is characterized in that, described voltage check device also comprises a plurality of resistance, couple described power-supply unit, described voltage comparison unit and ground connection after described these resistance are connected in series, be used for the described operating voltage of dividing potential drop to obtain described reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020197084XU CN201845039U (en) | 2010-05-18 | 2010-05-18 | Voltage detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020197084XU CN201845039U (en) | 2010-05-18 | 2010-05-18 | Voltage detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845039U true CN201845039U (en) | 2011-05-25 |
Family
ID=44039926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020197084XU Expired - Fee Related CN201845039U (en) | 2010-05-18 | 2010-05-18 | Voltage detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845039U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643941A (en) * | 2012-05-18 | 2012-08-22 | 内蒙古包钢钢联股份有限公司 | Detector for S/D angle transmitter of blast furnace |
| CN106291073A (en) * | 2015-06-03 | 2017-01-04 | 技嘉科技股份有限公司 | voltage detection device |
| CN110543391A (en) * | 2018-05-28 | 2019-12-06 | 佛山市顺德区顺达电脑厂有限公司 | method for detecting connection state of main board element |
-
2010
- 2010-05-18 CN CN201020197084XU patent/CN201845039U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643941A (en) * | 2012-05-18 | 2012-08-22 | 内蒙古包钢钢联股份有限公司 | Detector for S/D angle transmitter of blast furnace |
| CN106291073A (en) * | 2015-06-03 | 2017-01-04 | 技嘉科技股份有限公司 | voltage detection device |
| CN110543391A (en) * | 2018-05-28 | 2019-12-06 | 佛山市顺德区顺达电脑厂有限公司 | method for detecting connection state of main board element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170060214A1 (en) | Indication system and electronic device utilizing the same | |
| CN206990773U (en) | A kind of detection means for testing power module working condition | |
| CN101359038A (en) | Electronic load device capable of simulating LED characteristic and simulation method thereof | |
| CN201845039U (en) | Voltage detecting device | |
| CN104063302A (en) | System state indication device | |
| CN201185085Y (en) | Control circuit for hard disk indicating lamp | |
| CN202177894U (en) | Failure diagnosis card of main board | |
| CN102118904B (en) | LED illuminating system and control method thereof | |
| CN101532875A (en) | Light intensity test device | |
| CN100573467C (en) | Test board and test macro | |
| CN201599692U (en) | High-power integrated LED street lamp | |
| CN101458311A (en) | Detection device for power supplier | |
| US8604802B2 (en) | Checking circuit for serial port connectors | |
| CN103051376B (en) | Portable test board | |
| CN202421452U (en) | Switching surge tester of LED (light emitting diode) lamp | |
| CN201281741Y (en) | Internal memory groove detector | |
| CN101222798A (en) | Driving circuit of light emitting diode | |
| CN210037935U (en) | A PCIe signal test fixture with U.3 interface | |
| CN210119553U (en) | Detection apparatus for whether short circuit exists between each pin of DB plug | |
| CN202663591U (en) | LED (light-emitting diode) resistance-capacitance type driver | |
| CN101936492A (en) | High-power integrated LED road lamp | |
| TWM493218U (en) | Two-wire type LED lamp circuit with independent control | |
| CN202721885U (en) | LED drive power aging test load | |
| TW201520749A (en) | Electronic device | |
| CN211603518U (en) | Multi-core cable detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20140518 |