CN1782718A - Current detecting device and method - Google Patents
Current detecting device and method Download PDFInfo
- Publication number
- CN1782718A CN1782718A CN 200410096164 CN200410096164A CN1782718A CN 1782718 A CN1782718 A CN 1782718A CN 200410096164 CN200410096164 CN 200410096164 CN 200410096164 A CN200410096164 A CN 200410096164A CN 1782718 A CN1782718 A CN 1782718A
- Authority
- CN
- China
- Prior art keywords
- unit
- voltage
- magnitude
- current
- signal
- 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.)
- Pending
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention discloses current detecting device and method superior to available technology, which can show the voltage of CPU only. The current detecting device and method of the present invention can also show the load current of CPU definitely with LED's, seven-segment display or display screen.
Description
Technical field
The present invention relates to a kind of current sensing means and method, relate in particular to a kind of method of utilizing current sensing means with the size of current of measurement central processing unit institute load.
Background technology
The basic input/output system of motherboard has the function that can set central processing unit voltage, motherboard can produce new voltage by the corresponding relation of voltage of setting and voltage sign symbol (VID) and indicate mark signal and be converted into reference voltage by digital/analog converter voltage, again reference voltage is delivered to central processing unit, make output voltage suitable through regulating circuit more at last with setting voltage value.When using the central processing unit of different voltages, motherboard can be exported optimal voltage according to central processing unit.
The voltage that prior art can only detect central processing unit indicates the symbol magnitude of voltage, can not demonstrate actual current value.But in fact the electric current that produced when executive routine of the central processing unit of different frequency speed also is not quite similar, but prior art can't accomplish to show the action of electric current.
Summary of the invention
Technical problem underlying to be solved by this invention is to provide a kind of current sensing means and method, to solve the shortcoming that can only demonstrate the magnitude of voltage of central processing unit in the prior art, thereby make the demonstration numerical value that the user can be by a display unit, the clear and definite load current size of finding out central processing unit this moment.
To achieve these goals, the invention provides a kind of electric current detecting method, this method comprises: transmit the current detection signal that a central processing unit is produced, obtain a current value of this current detection signal, changing this current value is a magnitude of voltage, relatively whether this magnitude of voltage exports a voltage difference on a display unit greater than the default magnitude of voltage of a comparison operation unit.
And, the present invention also provides a kind of current sensing means, comprise: a central processor unit, in order to produce a current signal, one detecting unit, electrically connect is at this central processor unit, in order to detect this current signal that this central processor unit produces, a converting unit, electrically connect is at this detecting unit, convert this current signal to a magnitude of voltage, a comparison operation unit, electrically connect is in this converting unit, with this magnitude of voltage and the default magnitude of voltage of this comparison operation unit after changing make comparisons, one display unit, electrically connect are in this comparison operation unit, with the voltage difference after showing relatively.
Adopt current sensing means of the present invention and method, by showing numerical value on seven-segment display on diode displaying power, the panel or the display screen, the load current size of finding out central processing unit this moment that the user can be clear and definite.
Description of drawings
Fig. 1 is the current sensing means synoptic diagram of first embodiment of the invention;
Fig. 2 is the current sensing means synoptic diagram of second embodiment of the invention;
Fig. 3 is the current sensing means synoptic diagram of third embodiment of the invention;
Fig. 4 is the electric current detecting method process flow diagram of first embodiment of the invention;
Fig. 5 is the electric current detecting method process flow diagram of second embodiment of the invention; And
Fig. 6 is the electric current detecting method process flow diagram of third embodiment of the invention.
Wherein, Reference numeral:
Detecting unit 12
Converting unit 14
Signal conversion unit 20
Control module 22
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are elaborated.
In the prior art, indicate the symbol magnitude of voltage, can not demonstrate actual current value owing to can only detect the voltage of central processing unit.So the invention provides the user can be by the demonstration numerical value of a display unit, the clear and definite load current size of finding out central processing unit this moment.
As shown in Figure 1, Fig. 1 is the current sensing means synoptic diagram of first embodiment of the invention, comprising: a central processor unit 10, and in order to produce a current signal.One detecting unit 12, electrically connect are at this central processor unit, in order to detect this current signal that this central processor unit produces.One converting unit 14, electrically connect convert this current signal to a magnitude of voltage at this detecting unit.One comparison operation unit 16, electrically connect be in this converting unit, with this magnitude of voltage and the default magnitude of voltage of this comparison operation unit after changing make comparisons, wherein this comparison operation unit is one or four sections comparers.One display unit 18, electrically connect are in this comparison operation unit, and with the voltage difference after showing relatively, wherein this display unit is at least one light emitting diode.
As shown in Figure 2, Fig. 2 is the current sensing means synoptic diagram of second embodiment of the invention, comprising: a central processor unit 10, and in order to produce a current signal.One detecting unit 12, electrically connect are at this central processor unit, in order to detect this current signal that this central processor unit produces.One converting unit 14, electrically connect convert this current signal to a magnitude of voltage at this detecting unit.One signal conversion unit 20, electrically connect are a digital signal with this magnitude of voltage by an analog signal conversion in this converting unit, and wherein this signal conversion unit is a simulation/analog converter.One display unit 18, electrically connect are at this signal conversion unit, and to export this digital signal, wherein this display unit is a LCD Panel or a cathode-ray tube displaying screen.
As shown in Figure 3, Fig. 3 is the current sensing means synoptic diagram of third embodiment of the invention, comprising: a central processor unit 10, and in order to produce a current signal.One detecting unit 12, electrically connect are at this central processor unit, in order to detect this current signal that this central processor unit produces.One converting unit 14, electrically connect convert this current signal to a magnitude of voltage at this detecting unit.One control module 22, electrically connect are in this converting unit, and wherein this control module includes a software, and the software that this control module utilization is included reads out this magnitude of voltage.One display unit 18, electrically connect show this magnitude of voltage at this control module, and wherein this display unit is a LCD Panel or a cathode-ray tube displaying screen.
As shown in Figure 4, Fig. 4 is the electric current detecting method process flow diagram of first embodiment of the invention, this method comprises the steps: to transmit the current detection signal (step S100) that a central processing unit is produced, obtain a current value (step S102) of this current detection signal, wherein this current value is to be detected and changed and try to achieve by a detecting unit, changing this current value is a magnitude of voltage (step S104), relatively whether this magnitude of voltage is greater than the default magnitude of voltage of a comparison operation unit (step S106), wherein this comparison operation unit is one or four sections comparers, if comparative result is for being, then export a voltage difference (step S108) on a display unit, wherein this display unit is at least one light emitting diode, otherwise, if comparative result is not then made any output action (step S110) for not.
The electric current detecting method process flow diagram of above-mentioned first embodiment cooperates the current sensing means of this first embodiment, present embodiment can detect the central processing unit current loading of this moment dynamically, through converting unit the current value that is detected is converted to magnitude of voltage, go again afterwards to make voltage ratio with four sections comparers, when voltage surpasses the designed predeterminated voltage value of each section, those light emitting diodes will be lighted, bright first light emitting diode when magnitude of voltage surpasses first section, bright many more of lamp may not work by lamp during underloading when current loading was overweight by that analogy.When the dynamic change of the load of electric current was widely different, LED light lamp will present the bright lamp of streamlined lamp and go out, and the user just can very clearly find out the current loading size of central processing unit this moment.
As shown in Figure 5, Fig. 5 is the electric current detecting method process flow diagram of second embodiment of the invention, this method comprises the steps: to transmit the current detection signal (step S200) that a central processing unit is produced, obtain a current value (step S202) of this current detection signal, wherein this current value is detected and is changed and try to achieve by a detecting unit.Changing this current value is a magnitude of voltage (step S204), is a digital signal (step S206) with this magnitude of voltage by an analog signal conversion by a signal conversion unit, and wherein this signal conversion unit is a simulation/analog converter.Export this digital signal (step S208) on a display unit, wherein this display unit is a seven-segment display.
The electric current detecting method process flow diagram of above-mentioned second embodiment cooperates the current sensing means of this second embodiment, the difference of present embodiment and this first embodiment is that measured magnitude of voltage is without comparer but via this simulation/analog converter, measured analog voltage is converted to digital voltage value, and display unit is changed to seven-segment display by light emitting diode, digital voltage value after obtaining conversion exports seven-segment display again to, demonstrates the current loading value by this seven-segment display.When the dynamic change of the load of electric current is widely different, can be presented at seven-segment display, the user just can very clearly find out the current loading size of central processing unit this moment.
As shown in Figure 6, Fig. 6 is the electric current detecting method process flow diagram of third embodiment of the invention, this method comprises the steps: to transmit the current detection signal (step S300) that a central processing unit is produced, obtain a current value (step S302) of this current detection signal, wherein this current value is detected and is changed and try to achieve by a detecting unit.Changing this current value is a magnitude of voltage (step S304), by a software to read this magnitude of voltage (step S306), show this magnitude of voltage (step S308) on a display unit, wherein this display unit is to be a LCD Panel or a cathode-ray tube displaying screen.
The electric current detecting method process flow diagram of above-mentioned the 3rd embodiment cooperates the current sensing means of the 3rd embodiment, the difference of present embodiment and this first embodiment is to replace light emitting diode with control module, and the software that uses this control module to include reads magnitude of voltage, the magnitude of voltage that is read is presented on a LCD Panel or the cathode-ray tube displaying screen again, when the dynamic change of the load of electric current is widely different, can be presented on a LCD Panel or the cathode-ray tube displaying screen, the user just can very clearly find out the current loading size of central processing unit this moment.
Since the electric current of every central processing unit start or enter operating system platform or or even when playing the 3D recreation, in fact central processing unit can load different current values, the present invention allows the user can be by showing numerical value on seven-segment display on diode displaying power, the panel or the display screen, the clear and definite load current size of finding out central processing unit this moment.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (20)
1. an electric current detecting method is characterized in that, comprising:
Transmit the current detection signal that a central processing unit is produced;
Obtain a current value of this current detection signal;
Changing this current value is a magnitude of voltage;
Relatively whether this magnitude of voltage is greater than the default magnitude of voltage of a comparison operation unit; And
Export a voltage difference on a display unit.
2. electric current detecting method according to claim 1 is characterized in that, this current value is detected by a detecting unit and conversion is tried to achieve.
3. electric current detecting method according to claim 1 is characterized in that, this comparison operation unit is one or four sections comparers.
4. electric current detecting method according to claim 1 is characterized in that, this is relatively in the step of this magnitude of voltage, if comparative result for being, is then exported a voltage difference on a display unit, otherwise, if comparative result is not then made any output action for denying.
5. electric current detecting method according to claim 1 is characterized in that, this display unit is at least one light emitting diode.
6. an electric current detecting method is characterized in that, comprising:
Transmit the current detection signal that a central processing unit is produced;
Obtain a current value of this current detection signal;
Changing this current value is a magnitude of voltage;
Is a digital signal with this magnitude of voltage by an analog signal conversion by a signal conversion unit; And
Export this digital signal on a display unit.
7. electric current detecting method according to claim 6 is characterized in that, this current value is detected by a detecting unit and conversion is tried to achieve.
8. electric current detecting method according to claim 6 is characterized in that, this signal conversion unit is a simulation/analog converter.
9. electric current detecting method according to claim 6 is characterized in that, this display unit is a seven-segment display.
10. an electric current detecting method is characterized in that, comprising:
Transmit the current detection signal that a central processing unit is produced;
Obtain a current value of this current detection signal;
Changing this current value is a magnitude of voltage;
By a software to read this magnitude of voltage; And
Show that this magnitude of voltage is on a display unit.
11. electric current detecting method according to claim 10 is characterized in that, this current value is detected by a detecting unit and conversion is tried to achieve.
12. electric current detecting method according to claim 10 is characterized in that, this display unit is-LCD Panel or-cathode-ray tube displaying screen.
13. a current sensing means is characterized in that, comprising:
One central processor unit is in order to produce a current signal;
One detecting unit, electrically connect are at this central processor unit, in order to detect this current signal that this central processor unit produces;
One converting unit, electrically connect convert this current signal to a magnitude of voltage at this detecting unit;
One comparison operation unit, electrically connect be in this converting unit, with this magnitude of voltage and the default magnitude of voltage of this comparison operation unit after changing make comparisons; And
One display unit, electrically connect are in this comparison operation unit, with the voltage difference after showing relatively.
14. electric current detecting method according to claim 13 is characterized in that, this comparison operation unit is one or four sections comparers.
15. electric current detecting method according to claim 13 is characterized in that, this display unit is at least one light emitting diode.
16. a current sensing means is characterized in that, comprising:
One central processor unit is in order to produce a current signal;
One detecting unit, electrically connect are at this central processor unit, in order to detect this current signal that this central processor unit produces;
One converting unit, electrically connect convert this current signal to a magnitude of voltage at this detecting unit;
One signal conversion unit, electrically connect are a digital signal with this magnitude of voltage by an analog signal conversion in this converting unit; And
One display unit, electrically connect are at this signal conversion unit, to export this digital signal.
17. electric current detecting method according to claim 16 is characterized in that, this signal conversion unit is a simulation/analog converter.
18. electric current detecting method according to claim 16 is characterized in that, this display unit is a LCD Panel or a cathode-ray tube displaying screen.
19. a current sensing means is characterized in that, comprising:
One central processor unit is in order to produce a current signal;
One detecting unit, electrically connect are at this central processor unit, in order to detect this current signal that this central processor unit produces;
One converting unit, electrically connect convert this current signal to a magnitude of voltage at this detecting unit;
One control module, electrically connect are in this converting unit, and wherein this control module includes a software, and the software that this control module utilization is included reads out this magnitude of voltage; And
One display unit, electrically connect show this magnitude of voltage at this control module.
20. electric current detecting method according to claim 19 is characterized in that, this display unit is a LCD Panel or a cathode-ray tube displaying screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410096164 CN1782718A (en) | 2004-11-30 | 2004-11-30 | Current detecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410096164 CN1782718A (en) | 2004-11-30 | 2004-11-30 | Current detecting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1782718A true CN1782718A (en) | 2006-06-07 |
Family
ID=36773145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410096164 Pending CN1782718A (en) | 2004-11-30 | 2004-11-30 | Current detecting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1782718A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089635B (en) * | 2006-06-13 | 2010-08-25 | 英华达(上海)电子有限公司 | Device for current overload prealarm prompt on PCB circuit board |
| CN102175937A (en) * | 2011-01-19 | 2011-09-07 | 中兴通讯股份有限公司 | Terminal operating current debugging system and method |
| CN113504489A (en) * | 2021-08-16 | 2021-10-15 | 南京理工大学工程技术研究院有限公司 | Capacitance leakage current detection device based on tantalum capacitance leakage current detection and use process |
-
2004
- 2004-11-30 CN CN 200410096164 patent/CN1782718A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089635B (en) * | 2006-06-13 | 2010-08-25 | 英华达(上海)电子有限公司 | Device for current overload prealarm prompt on PCB circuit board |
| CN102175937A (en) * | 2011-01-19 | 2011-09-07 | 中兴通讯股份有限公司 | Terminal operating current debugging system and method |
| CN102175937B (en) * | 2011-01-19 | 2016-06-22 | 中兴通讯股份有限公司 | Terminal operating current debugging system and method |
| CN113504489A (en) * | 2021-08-16 | 2021-10-15 | 南京理工大学工程技术研究院有限公司 | Capacitance leakage current detection device based on tantalum capacitance leakage current detection and use process |
| CN113504489B (en) * | 2021-08-16 | 2024-01-30 | 南京理工大学工程技术研究院有限公司 | Capacitance leakage current detection device based on tantalum capacitance leakage current detection and use process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1509465A (en) | Method and apparatus for enabling power management of flat-panel display | |
| US20070276615A1 (en) | Reflective display device testing system, apparatus, and method | |
| CN1804963A (en) | Device having optical sensor | |
| CN1200337C (en) | Method and device for electric power element for video-frequency presentation display equipment | |
| CN107347222A (en) | Dimming driving circuit and its control method | |
| WO2006112504A1 (en) | Circuit device and electronic device using the same | |
| CN1782718A (en) | Current detecting device and method | |
| CN110827781A (en) | Adjusting circuit, display screen, display device and display method | |
| CN1884841A (en) | Fan rotating speed display device | |
| CN101577096A (en) | Method for adjusting common voltage of liquid crystal display device | |
| CN1249811A (en) | Voltage divider providing switchable resolution | |
| CN200953145Y (en) | Touch screen testing device | |
| CN2816925Y (en) | General bus detecting module | |
| CN109326247B (en) | Driving circuit, driving method and display device | |
| EP1983502A3 (en) | Backlight control apparatus and backlight control method | |
| CN1052951A (en) | The automatic range selector of digital multimeter measuring instrument | |
| CN1310503C (en) | Picture signal processing circuit | |
| US9664557B2 (en) | Method and semiconductor component for identifying ambient light fluctuations | |
| CN1267736C (en) | Automatic voltage detector | |
| CN104575444A (en) | Luminance control device and luminance control method | |
| CN101074977A (en) | Electrode inspector | |
| CN1658110A (en) | Control method and control device for brightness of back light source | |
| CN107945755A (en) | Pulsewidth modulated intergrated circuit and display device | |
| CN1967644A (en) | Flat video display capable of adjusting brightness | |
| KR100676698B1 (en) | Computer system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |