CN104330606B - Measure the voltage of power supply and the tool and its method for measurement of electric current - Google Patents
Measure the voltage of power supply and the tool and its method for measurement of electric current Download PDFInfo
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Abstract
The present invention relates to it is a kind of measure power supply voltage and electric current tool, comprising：Mainboard voltage inputs slot, connection mainboard supply power supply；Mainboard voltage exports slot, connects mainboard；Mainboard voltage and current measurement circuit, input slot with mainboard voltage respectively and mainboard voltage output slot mutually couples, and measure voltage and electric current that mainboard supply power supply is supplied to mainboard；Component voltage inputs slot, connection component supply power supply；Component voltage exports slot, connects computer system component；Component voltage and current measurement circuit, input slot with component voltage respectively and component voltage output slot mutually couples, and measure voltage and electric current that component supply power supply is supplied to computer system component；Microcontroller, measurement and reception and output measurement to control voltage and electric current.
Description
【Technical field】
The present invention is particularly a kind of to be applied to personal meter on a kind of tool and its method for measurement for measuring voltage and electric current
Calculation machine system, and the voltage of measurement power supply and the tool and its method for measurement of electric current of power supply unit specification can be determined according to this.
【Background technology】
Personal computer (personal computer, PC) turns into some indispensable in modern life.One
As consumer buy personal computer, the PC device of complete machine formula can be bought to brand dealer, brand dealer simultaneously carry
For after-sale service；In addition, also have the consumer of high-order use demand in some, or the consideration for efficiency, or in order to save
Buying cost is saved, and is inclined in a manner of voluntarily assembling, is buying the building block of computer respectively and software uses copyright
And then it is assembled into a complete personal computer.Also there are many net coffee dealers the country at present, in order to save hardware purchase
Enter cost, and tend to buy computer in a manner of voluntarily assembling.
But when consumer is determining voluntarily to assemble personal computer, it must be determined that whether the specification of each building block
Can be compatible, to can smoothly assemble.The wherein power output specification of power supply unit (power supply), be also one
The signals after choice between efficiency and price.Power supply unit in personal computer is for providing supply voltage
Source, to mainboard in personal computer and other building blocks, such as Winchester disk drive, CD-ROM drive, display adapter etc..If power supply
The power output specification deficiency of supply, the problem of by power down is easily caused, that is, the output voltage of power supply unit is in dynamic
Easily it is less than load voltage value during use, and causes that system is unstable, damage when machine, even building block.
But the power output specification of power supply unit is higher, its price is also just more expensive, such as exports on the market at present
Power requirements are 350 watts (Watt) and 500 watts of power supply unit, and its price differential is more than hundreds of members；And come toward upper level
Compare, 500 watts and 750 watts of power supply unit, its price differential is even up to 1,000 yuan.It is right with such market difference
In needing to purchase a number of personal computer and for the extremely sensitive net coffee dealer of buying price, how to the greatest extent
Measure under the prerequisite to bring down prices, it is applicable to buy to determine the power output specification of just enough power supply units
Power supply unit component, it is that an important business considers.However, do not have a more efficient and convenient practice at present,
To obtain the answer of this problem.
In general, consumer when buying power supply unit, all tends to the practice more guarded, that is, purchase specification
Higher power supply unit, to avoid personal computer system from using upper generation problem.But so but cause and purchase
The unnecessary expenditure of cost.
【The content of the invention】
In view of the above problems, the present invention provides a kind of tool and its method for measurement of the voltage and electric current for measuring power supply,
It is particularly a kind of to be applied to personal computer system, and the voltage and electricity of the measurement power supply of power supply unit specification can be determined according to this
The tool and its method for measurement of stream.
The present invention proposes a kind of tool for the voltage and electric current for measuring power supply, is to be applied to personal computer system.It is personal
Computer system includes mainboard supply power supply and component supply power supply, to provide mainboard voltage and component voltage respectively,
To drive mainboard and computer system component respectively.The tool of the voltage and electric current that measure power supply includes mainboard voltage input and inserted
Groove, mainboard voltage export slot, mainboard voltage and current measurement circuit, component voltage inputs slot, component voltage exports slot,
Component voltage and current measurement circuit and microcontroller.
Mainboard voltage input slot connection mainboard supply power supply, and receive mainboard voltage.Mainboard voltage output slot connection
Mainboard, and export the power supply needed for mainboard.Mainboard voltage and current measurement circuit input slot and master with mainboard voltage respectively
Plate voltage output slot mutually couples, and measures voltage and electric current that mainboard supply power supply is supplied to mainboard.Component voltage input is inserted
Groove connection component supplies power supply, and receiving unit voltage.Component voltage output slot connection computer system component, and export meter
Power supply needed for calculation machine system component.Component voltage and current measurement circuit input slot and component electricity with component voltage respectively
Pressure output slot mutually couples, and measures voltage and electric current that component supply power supply is supplied to computer system component.Microcontroller
To control mainboard voltage and current measurement circuit and component voltage and current measurement circuit, and receive and export mainboard
The voltage and current measurement result of voltage and current measurement circuit and component voltage and current measurement circuit
The present invention proposes a kind of voltage of power supply and the method for measurement of electric current again, is to be applied to a personal computer system.
Personal computer system includes multiple mainboards supply power supply and multiple components supply power supply, to provide multiple mainboard electricity respectively
Pressure and multiple component voltages, to drive a mainboard and multiple computer system components respectively.The voltage of power supply and electric current
Method for measurement comprises the following steps：
First, whether the value for detecting multiple mainboard voltages is all normal.Then, the multiple mainboard electricity of a microprocessor control are ordered
Pressure and current measurement circuit measure the multiple mainboard supply power supply and are supplied to the voltage and electric current of the mainboard respectively, and order
The multiple component voltages of microprocessor control and current measurement circuit measure multiple component supply-voltage sources and are supplied to multiple meters respectively
The voltage and electric current of calculation machine system component.Finally, order microcontroller receives and exported multiple mainboard voltages and current measurement
The voltage and current measurement result of circuit and multiple component voltages and current measurement circuit.
The present invention more proposes the voltage of another power supply and the method for measurement of electric current, applied to a personal computer system.
Personal computer system includes multiple mainboards supply power supply and multiple components supply power supply, to provide multiple mainboard electricity respectively
Pressure and multiple component voltages, to drive a mainboard and multiple computer system components respectively.The voltage of power supply and electric current
Method for measurement comprises the following steps：
First, whether the value for detecting the multiple mainboard voltage is all normal；Then, the multiple mainboards of order microprocessor control
Voltage and current measurement circuit and multiple component voltages and current measurement circuit, and with multiple mainboard voltages and current measurement electricity
Road and multiple resistance of multiple component voltages and current measurement circuit, normally multiple mainboards supply voltages to separately sampled voltage
Source is supplied to the electric current of mainboard and multiple component supply-voltage sources to be supplied to the electric current of multiple computer system components；Then,
With multiple mainboard voltages and multiple Analog-digital Converters of current measurement circuit and multiple component voltages and current measurement circuit
Device, the voltage at multiple resistance both ends is measured respectively, to obtain equivalent current value, and be converted into digital signal and be sent to institute
State microcontroller；Finally, order microcontroller exports multiple mainboard voltages and current measurement circuit and multiple component voltages and electricity
The voltage and current measurement result of flow slowdown monitoring circuit.
The effect of of the invention is, disclosed herein measurement power supply voltage and the tool of electric current and its measurement side
Method, the power demand and electric current that can intactly measure mainboard and computer system component in personal computer system use feelings
Shape, and suitable power supply unit product is determined according to this, and individual calculus can be voluntarily assembled in a manner of best suiting economic benefit
Machine system.
Feature, implementation and effect for the present invention, schema is hereby coordinated to make most preferred embodiment detailed description as follows.
【Brief description of the drawings】
Fig. 1 is voltage and the tool of electric current and its individual of application of the measurement power supply disclosed herein first embodiment
The circuit diagram of computer system.
Fig. 2 is voltage and the tool of electric current and its individual of application of the measurement power supply disclosed herein second embodiment
The circuit diagram of computer system.
Fig. 3 is voltage and the tool of electric current and its individual of application of the measurement power supply disclosed herein 3rd embodiment
The circuit diagram of computer system.
Fig. 4 is voltage and the tool of electric current and its individual of application of the measurement power supply disclosed herein fourth embodiment
The circuit diagram of computer system.
Fig. 5 is disclosed herein the step flow chart of the voltage of the power supply of the 5th embodiment and the method for measurement of electric current.
Fig. 6 is disclosed herein the step flow chart of the voltage of the power supply of sixth embodiment and the method for measurement of electric current.
Fig. 7 is disclosed herein the step flow chart of the voltage of the power supply of the 7th embodiment and the method for measurement of electric current.
Fig. 8 is disclosed herein the step flow chart of the voltage of the power supply of the 8th embodiment and the method for measurement of electric current.
Primary clustering symbol description：
100th, 101,200,201 1300,2300 power supply units are measured
The voltage of power supply and the mainboard of the tool 1311 supply power supply of electric current
111 mainboard voltages input slot 1321 component supply power supply
121 mainboard voltages and current measurement 211 ..., 21n mainboard voltages input slot
Circuit 221 ..., 22n mainboard voltages and current measurement circuit
131 mainboard voltages output slot 231 ..., 23n mainboard voltages output slot
141 component voltages input slot 241 ..., 24n component voltages input slot
151 component voltages and current measurement 251 ..., 25n component voltages and current measurement circuit
Circuit 261 ..., 26n component voltages output slot
161 component voltages output slot 281 ..., 28n mainboard voltage indicator lamps
170th, 270 microcontrollers 2201 ..., 220n computer system components
181 mainboard voltage indicator lamps 2311 ..., 231n mainboards supply power supply
1000 personal computer systems 2321 ..., 232n components supply power supply
1100th, 2100 mainboard
1201 computer system components
【Embodiment】
Among specification and claims, " coupling " one word directly and is indirectly electrically connected comprising any herein
Means.Therefore, if the first device of described in the text one is coupled to a second device, representing the first device directly can electrically connect
The second device is connected to, or is electrically connected indirectly to the second device by other devices or connection means.
Fig. 1 is that disclosed herein the voltage of measurement power supply of first embodiment and the tool 100 of electric current and its application
The circuit diagram of personal computer system 1000.Personal computer system 1000 includes mainboard 1100, computer system component 1201
And power supply unit 1300.Power supply unit 1300 includes mainboard supply power supply 1311 and component supply power supply 1321, uses
To provide mainboard voltage and component voltage respectively, to drive mainboard 1100 and computer system component 1201 respectively.Measure
The voltage of power supply and the tool 100 of electric current include mainboard voltage input slot 111, mainboard voltage output slot 131, mainboard voltage
And current measurement circuit 121, component voltage input slot 141, component voltage output slot 16 1, component voltage and current measurement
Circuit 151 and microcontroller 170.
Mainboard voltage input slot 111 connects mainboard supply power supply 1311, and receives mainboard voltage.Mainboard voltage output is inserted
Groove 131 connects mainboard, and exports the power supply needed for mainboard 1100.Mainboard voltage and current measurement circuit 121 are electric with mainboard respectively
Pressure input slot 111 and mainboard voltage output slot 131 phase coupling, mainboard voltage and current measurement circuit 121 measure mainboard
Supply power supply 1311 is supplied to the voltage and electric current of mainboard 1100.Component voltage input slot 141 connection component supply power supply
1321 and receiving unit voltage.Component voltage output slot 16 1 connects computer system component 1201 and exports computer system
Power supply needed for component 1201.Component voltage and current measurement circuit 151 input slot 141 and component with component voltage respectively
The phase of voltage output slot 16 1 couples, and component voltage and current measurement circuit 151 measure component supply power supply 1321 and be supplied to calculating
The voltage and electric current of machine system component 1201.Microcontroller 170 is to control mainboard voltage and current measurement circuit 121 and group
Part voltage and current measurement circuit 151, and microcontroller 170 receives and exported mainboard voltage and current measurement circuit 121
And the voltage and current measurement result of component voltage and current measurement circuit 151.
Further illustrate, the mainboard voltage that mainboard supply power supply 1311 is provided, is to input slot by mainboard voltage
111st, mainboard voltage and current measurement circuit 121 and mainboard voltage output slot 131 export to mainboard 1100 again.Component is supplied
The component voltage that power supply 1321 is provided, then it is that slot 141, component voltage and current measurement circuit are inputted by component voltage
151 and component voltage output slot 16 1 export again to computer system component 1201.Wherein mainboard voltage input slot 111,
Mainboard voltage output slot 131, component voltage input slot 141 and component voltage output slot 16 1 are supplied to meet power supply
Answer the slot of the entity size of device joint standard, the use plugged for standard compliant connecting line.Such as it is current popularized, by
In ATX (Advanced Technology eXtended) host version specification that Intel (Intel) is formulated, that is, define electricity
The entity structure of source supply joint, ATX (20 adapters, for Pentium III and the Athlon of early stage of such as early stage
XP), WTX (24 adapters, for Pentium II, Pentium III, Xeon and Athlon MP), AMD GES (24 pin masters
Connect and 8 pin auxiliary joints, the dual processor platform for part Athlon), EPS12V (24 pin major joints, 8 pin auxiliary joints
With the joint of 4 pin the 3rd of apolegamy, for Xeon and Opteron), and early ATX12V (20 pin major joints, 4 pins auxiliary
Joint and the joint of 8 pin the 3rd, for Pentium 4 and the Athlon XP and Athlon 64 compared with the later stage), ATX12V2.0 (24
Pin major joint and 4 pin auxiliary joints, for Pentium 4, Core 2Duo and the Athlon64 for possessing PCI Express),
ATX12V2.2 (one piece of 20/24 adapter and one piece of adapter of ATX12V 4；Most power supply units also provides one group of 4 pin and added
4 pins, or the auxiliary of 8 pins turn, 4 pins connect, as second EPS12V joint).Other, which also have, supplies SATA (serial advanced
Technology attachment) device, such as the SATA power connections of SATA hard disc machine, supply such as CD driver device
Joint of Molex joints and early supply floppy disk (floppy disk drive) etc..
Mainboard voltage and current measurement circuit 121 and component voltage and current measurement circuit 151 then receive microcontroller
170 control, to measurement mainboard supply-voltage source 1311 and component supply the defeated of power supply 1321 dynamically and in real-time respectively
Go out voltage and electric current or the signal of its equivalent output current, and result is back to microcontroller 170 and handled.Such as mainboard
Voltage and current measurement circuit 121 can further comprise resistance (not showing in Fig. 1) and analog-digital converter (in Fig. 1 not
Show), wherein resistance inputs slot 111 with mainboard voltage and mainboard voltage output slot 131 phase couples, and Analog-digital Converter
Device is the voltage for measuring resistance both ends, to the equivalent current value that converts, and is convertible into digital forms so that microcontroller enters
Row processing.In another example component voltage and current measurement circuit 151 can further comprise resistance (not showing in Fig. 1) and simulation numeral
Converter (does not show) that wherein resistance inputs slot 141 with component voltage and component voltage output slot 16 1 phase couples in Fig. 1,
And analog-digital converter is the voltage for measuring resistance both ends, to the equivalent current value that converts, and is convertible into digital forms
So that microcontroller is handled.
Microcontroller 170 is determining and control mainboard voltage and current measurement circuit 121 and component voltage and electric current
Measurement circuit 151 measure the mode of voltage and electric current, such as measures the opportunity of beginning, and with periodically or non-periodically
Mode measured.Microcontroller 170 and receive mainboard voltage and current measurement circuit 121 and component voltage and electric current
The voltage and current measurement result of measurement circuit 151 are simultaneously handled, such as voltage and current measurement result are stored to being located at
Microcontroller or a storage element of outside, or export in real time to other measurement equipments to be analyzed, example
Such as by universal serial bus (universal serial bus, USB) using data output to as measurement equipment control terminal
Notebook computer is to be recorded and be analyzed.In addition, the integrated circuit of microcontrollers many on the market also incorporates simulation at present
The circuit of digital quantizer can carry out mainboard voltage and the institute of current measurement circuit 121 in the present embodiment in same chip
Including Analog-digital Converter function, now mainboard voltage and current measurement circuit 121 need to only interrogate the voltage at resistance both ends
Number it is coupled to the integrated circuit of the microcontroller with Analog-digital Converter function.Therefore, disclosed herein implementation
In the explanation of example, microcontroller is explanation as concept and functionally, however it is not limited to is a list realized with integrated circuit
One chip.
Fig. 2 is that disclosed herein the voltage of measurement power supply of second embodiment and the tool 101 of electric current and its application
The circuit diagram of personal computer system 1000.Measure the voltage of power supply and the tool 101 of electric current and the measurement power supply disclosed in Fig. 1
Voltage and the tool 100 of electric current do not exist together, the tool 101 of the voltage and electric current that are to measure power supply has further included mainboard electricity
Press indicator lamp 181.Mainboard voltage indicator lamp 181 is electrically connected with microcontroller 170.When microcontroller 170 measures mainboard voltage
Value for it is normal when, microcontroller 170 sends signal and starts mainboard voltage indicator lamp 181.In this way, user can be by directly observing
Mainboard voltage indicator lamp 181 flickers, and just whether supply-voltage source its power supply for directly judging that current mainboard 1100 received
Often, to carry out detecing mistake in sharp measurement tasks.
In addition, in first embodiment and second embodiment, microcontroller 170 can be optionally by power supply unit
1300 are powered, or are powered by external supply-voltage source (not shown)；And mainboard voltage and current measurement circuit
121 or component voltage and current measurement circuit 151 optionally can also be powered by power supply unit 1300, or by
External supply-voltage source is powered.Microcontroller 170, mainboard voltage and current measurement circuit 121 and component voltage and electricity
Flow slowdown monitoring circuit 151 is directly powered by the supply power supply of power supply unit 1300, have simplify integrated testability circuit and
The benefit of required equipment (being not required to one group of external supply-voltage source) so that measure the voltage of power supply and the tool 100 of electric current,
101 have bigger portability and convenience using upper.Yet with microcontroller 170, mainboard voltage and the magnitude of current
The power consumption of slowdown monitoring circuit 121 and component voltage and current measurement circuit 151, which will likely add, to be counted in personal computer system to be measured
Among 1000 electricity consumption value, thus cause error.Therefore, when the electricity consumption value of personal computer system 1000 to be measured is much larger than micro-
During the power consumption of controller 170, mainboard voltage and current measurement circuit 121 and component voltage and current measurement circuit 151, micro-control
Device 170, mainboard voltage and current measurement circuit 121 and component voltage and current measurement circuit 151 processed are directly supplied by power supply
The supply power supply of device 1300 is powered, and will not cause the too big error of measurement；But work as personal computer to be measured
The electricity consumption value of system 1000 is close, be even less than microcontroller 170, mainboard voltage and current measurement circuit 121 and component is electric
During the power consumption of pressure and current measurement circuit 151, with external supply-voltage source to microcontroller 170, mainboard voltage and current measurement
Circuit 121 and component voltage and current measurement circuit 151 are powered, and can exclude error.It is noted that in this reality
Apply in example, microcontroller 170, mainboard voltage and current measurement circuit 121 and component voltage and current measurement circuit 151 can divide
Do not select its power supply mode, such as microcontroller 170 is powered by 12 volts of voltage sources of 24 stitch, and mainboard voltage and
Current measurement circuit 121 and component voltage and current measurement circuit 151 are then powered with external circuitses.The institute in embodiment
The power supply plan mode of exposure is the use illustrated, and user can be according to the demand in practical application, and has other power supply rule
Design on drawing.
Furthermore foregoing measurement equipment control terminal can also load the data of the power supply unit of various different sizes, and
Collocation measure the voltage of power supply and the tool 100,101 of electric current for personal computer system 1000 to be measured carry out voltage and
After the detecting of electric current, record and analysis, conclusion that whether power supply unit of a certain specification is applicable, that is, individual
Whether the required power consumption of computer system 1000 exceeds the specification for the power supply unit selected, and sends police with regard to this conclusion
Show, such as warned with different cressets, or conclusion is shown with screen-picture.Such tester can just applicable power supply unit it
In, plus the consideration of price and the margin of safety, select the power supply unit product of suitable consumer.
Fig. 3 is that disclosed herein the voltage of measurement power supply of 3rd embodiment and the tool 200 of electric current and its application
The circuit diagram of personal computer system 2000.Personal computer system 2000 include multiple mainboards supply power supply 2311 ..., 231n
And multiple components supply power supplys 2321 ..., 232n, to provide multiple mainboard voltages and multiple component voltages respectively, with
Drive respectively mainboard 2100 and multiple computer system components 2201 ..., 220n.Measure the voltage of power supply and the tool of electric current
200 include multiple mainboard voltages input slot 211 ..., 21n, multiple mainboard voltages output slot 231 ..., 23n, multiple mainboards
Voltage and current measurement circuit 221 ..., 22n, multiple component voltages input slot 241 ..., the output of 24n, multiple component voltages
Slot 261 ..., 26n, multiple component voltages and current measurement circuit 251 ..., 25n and microcontroller 270.
Multiple mainboard voltages input slots 211 ..., 21n connect respectively multiple mainboards supply power supplys 2311 ..., 231n, and
Receive multiple mainboard voltages.Multiple mainboard voltages output slots 231 ..., 23n connections mainboard 2100, and export needed for mainboard
Power supply.Multiple mainboard voltage and current measurement circuits 221 ..., 22n respectively with multiple mainboard voltages input slot 211 ..., 21n
One of and multiple mainboard voltages output slot 231 ..., one of 23n mutually couples, and measures multiple masters respectively
Plate supplying power supply 2311 ..., 231n be respectively supplied to the voltage and electric current of mainboard 2100.Multiple component voltages input slot
241st ..., 24n respectively be connected multiple component supply-voltage sources 2321 ..., 232n phases couple, and receive multiple component voltages.
Multiple component voltages output slots 261 ..., 26n to respectively with multiple computer system components 2201 ..., 220n phases couple,
And export multiple computer system components 2201 ..., the power supply needed for 220n.Multiple component voltage and current measurement circuits
251st ..., 25n respectively with multiple component voltages input slot 241 ..., one of 24n and multiple component voltages export
Slot 261 ..., one of 26n mutually couple, and measure respectively multiple component supply-voltage sources 2321 ..., 232n carries respectively
The voltage and electric current of computer system component corresponding to supply.Microcontroller 270 is controlling multiple mainboard voltages and the magnitude of current
Slowdown monitoring circuit 221 ..., 22n and multiple component voltages and current measurement circuit 251 ..., 25n, and microcontroller 270 receives
And the multiple mainboard voltages of output and current measurement circuit 221 ..., 22n and multiple component voltages and current measurement circuit
251st ..., 25n voltage and current measurement result.
Further illustrate, mainboard supply power supply 2311 ..., the mainboard voltages that are provided of 231n, be respectively by mainboard electricity
Pressure input slot 211 ..., 21n, mainboard voltage and current measurement circuit 221 ..., 22n and mainboard voltage output slot
231st ..., 23n exports to mainboard 2100 again.Component supply power supply 2321 ..., the component voltages that are provided of 232n, then be difference
By component voltage input slot 241 ..., 24n, component voltage and current measurement circuit 251 ..., 25n and component voltage it is defeated
Go out slot 261 ..., 26n export respectively again to computer system component 2201 ..., 220n.Wherein mainboard voltage input slot
211st ..., 21n, mainboard voltage output slot 231 ..., 23n, component voltage input slot 241 ..., 24n and component voltage
Export slot 261 ..., 26n be to meet the slot of the entity size of power supply unit joint standard, for standard compliant company
The use that wiring plugs, such as the ATX standards described in Fig. 1 explanation.The tool 200 of measurement source current can incite somebody to action general at present
Identical platform is integrated in all over the different types of slot used, to facilitate the different types of personal computer system 1000 of test,
Therefore there is very high compatibility and convenience.
Mainboard voltage and current measurement circuit 221 ..., 22n, component voltage and current measurement circuit 251 ..., 25n and
Function, circuit composition and the mode of operation of microcontroller 270, refer to corresponding mainboard voltage and current measurement electricity in Fig. 1
Road 121, component voltage and the related description of current measurement circuit 151 and microcontroller 170.In addition, work as mainboard voltage and electricity
Flow slowdown monitoring circuit 221 ..., 22n and component voltage and current measurement circuit 251 ..., 25n number it is more when, can utilize
Such as inter-integrated circuit (inter-integrated circuit, I2C) or serial circumference interface (serial
Peripheral interface, SPI) etc. communication bus agreement, by corresponding control port and data in each sub-circuit
After input/output end port is connected, and the addressing for passing through microcontroller 270 is set, decision is controlled at present or data
The circuit unit of input/output is whichever, can so make the circuit Winding Design of tool more simplified, can save tool into
Sheet and size.This be one skilled in the art known by, and understand disclosed herein spirit after, can evidence
With implementer, do not repeat separately herein.
Fig. 4 is that disclosed herein the voltage of measurement power supply of fourth embodiment and the tool 201 of electric current and its application
The circuit diagram of personal computer system 2000.Measure the voltage of power supply and the tool 201 of electric current and the measurement power supply disclosed in Fig. 3
Voltage and the tool 200 of electric current do not exist together, the tool 201 of the voltage and electric current that are to measure power supply has further included mainboard electricity
Press indicator lamp 281 ..., 28n.Mainboard voltage indicator lamp 281 ..., 28n and microcontroller 270 be electrically connected with.Work as microcontroller
When 270 values for measuring one of multiple mainboard voltages are normal, microcontroller 270 sends mainboard voltage instruction corresponding to signal startup
Lamp, that is, mainboard voltage indicator lamp 281 ..., one of 28n.In this way, user can be indicated by directly observing mainboard voltage
Lamp 281 ..., 28n flicker, and whether supply-voltage source its power supply for directly judging that current mainboard 1100 received normal, with
Carry out detecing mistake in sharp measurement tasks.
In addition, in 3rd embodiment and fourth embodiment, microcontroller 270 can be optionally by power supply unit
2300 are powered, or are powered by external supply-voltage source (not shown)；And mainboard voltage and current measurement circuit
221st ..., 22n or component voltage and current measurement circuit 251 ..., 25n optionally can enter by power supply unit 1300
Row power supply, or be powered by external supply-voltage source.It, can using other changes in upper choice and planning and designing
With the related description mentioned in reference first embodiment and second embodiment.
Furthermore measured when measuring the voltage of power supply and the tool 200,201 of electric current with unification measurement equipment control terminal
When, measurement equipment control terminal can also load the data of the power supply unit of various different sizes, and measure power supply in collocation
The tool 200,201 of voltage and electric current carries out the detecting of voltage and electric current, record for personal computer system 2000 to be measured
And after analysis, conclusion that whether power supply unit of a certain specification is applicable, that is, people's computer system 2000
Whether required power consumption exceeds the specification of this power supply unit, and sends warning with regard to this conclusion, such as is warned with different cressets,
Or conclusion is shown with screen-picture.Among the power supply unit that such tester can just be applicable, plus price and safe edge
The consideration on border, select the power supply unit product of suitable consumer.
The present invention more discloses a kind of voltage of power supply and the method for measurement of electric current, is to be applied to a personal computer system,
Personal computer system includes multiple mainboards supply power supply and multiple components supply power supply, to provide multiple mainboard electricity respectively
Pressure and multiple component voltages, to drive a mainboard and multiple computer system components respectively.The voltage of power supply and electric current
Method for measurement comprises the following steps：
First, whether the value for detecting multiple mainboard voltages is all normal.Then, the multiple mainboard electricity of a microprocessor control are ordered
Pressure and current measurement circuit measure the multiple mainboard supply power supply and are supplied to the voltage and electric current of the mainboard respectively, and order
The multiple component voltages of microprocessor control and current measurement circuit measure multiple component supply-voltage sources and are supplied to multiple meters respectively
The voltage and electric current of calculation machine system component.Finally, order microcontroller receives and exported multiple mainboard voltages and current measurement
The voltage and current measurement result of circuit and multiple component voltages and current measurement circuit.
In addition, disclosed herein the voltage of power supply and the method for measurement of electric current more may further include following step
Suddenly, that is, initially determining, with one of multiple mainboards supply power supply or an external supply-voltage source, to measure to one
The step of tool of source current is powered.
Fig. 5 be disclosed herein the step flow chart of the voltage of the power supply of the 5th embodiment and the method for measurement of electric current,
Including the as described below of step 310 to step 340：
As indicated in step 310, whether the value for detecting multiple mainboard voltages is all normal.As voltage is normal, then to step 320；
As voltage is abnormal, then to step 340.
As shown at step 320, the multiple mainboard voltages of order microprocessor control and current measurement circuit measure multiple respectively
Mainboard supply power supply is supplied to the voltage and electric current of mainboard, and the multiple component voltages of order microprocessor control and current measurement
Circuit measures the voltage and electric current that multiple component supply power supplys are supplied to multiple computer system components respectively.
As shown in step 330, microcontroller receives and exported mainboard voltage and current measurement circuit and component voltage
And the voltage and current measurement result of current measurement circuit.
As indicated in step 340, show that the value of mainboard voltage is abnormal.Such as microprocessor control mainboard voltage indicator lamp
State (flicker, flash, color change etc.), to show the whether normal of mainboard voltage；Or directly display to measure in one and set
On the screen of standby control terminal.
Fig. 6 be disclosed herein the step flow chart of the voltage of the power supply of sixth embodiment and the method for measurement of electric current,
Including the as described below of step 405 to step 440：
As shown at 405, determine with one of multiple mainboards supply power supply or an external supply-voltage source, to amount
The tool of the voltage and electric current of surveying power supply is powered.
Step 410,420,430 and 440, then can be respectively with reference to the explanation of step 310,320,330 and 340 in figure 5.
Fig. 7 be disclosed herein the step flow chart of the voltage of the power supply of the 7th embodiment and the method for measurement of electric current,
Including the as described below of step 505 to step 570：
Step 505,510,520,530 and 540, then can be respectively with reference to the step 405 in figure 6, and step in Fig. 5
310th, 320,330 and 340 explanation.
As shown in step 550, voltage and the setting whether up to specification of current measurement result are judged.Such as setting up to specification,
Then to step 560；Such as fall short of specifications setting, then to step 570.
As shown in step 560, prompting up to specification is shown.Such as it is shown on the screen of a measurement equipment control terminal.
As shown in step 570, the prompting that falls short of specifications is shown.Such as be shown in a measurement equipment control terminal screen it
On.
Wherein, in step 320,420 and 520 of the 5th embodiment, sixth embodiment and the 7th embodiment, order
Microprocessor control mainboard voltage and current measurement circuit and component voltage and current measurement circuit, with measure respectively voltage and
The action of electric current, the following steps can be further comprised：
First, with the multiple of multiple mainboard voltages and current measurement circuit and multiple component voltages and current measurement circuit
Resistance, the normal electric current of multiple mainboard supply-voltage sources and multiple component supply-voltage sources of separately sampled voltage.
Then, with the multiple of multiple mainboard voltages and current measurement circuit and multiple component voltages and current measurement circuit
Analog-digital converter, the voltage at multiple resistance both ends is measured respectively, to obtain equivalent current value, and be converted into digital news
Number and be sent to microcontroller.
Fig. 8 be disclosed herein the step flow chart of the voltage of the power supply of the 8th embodiment and the method for measurement of electric current,
As by the measured current described in leading portion the step of, applied in the 5th embodiment.Above-mentioned related description is please directly referred to,
This is not repeated separately.
Although embodiments of the invention are disclosed above described, the present invention is so not limited to, it is any to be familiar with related art techniques
Person, without departing from the spirit and scope of the present invention, such as according to the shape described in the present patent application scope, construction, feature and number
Amount, which is worked as, can do a little change, therefore the scope of patent protection of the present invention must regard claim institute circle appended by this specification
The person of determining is defined.
Claims (8)
1. a kind of tool for the voltage and electric current for measuring power supply, applied to a personal computer system, the personal computer system
System includes mainboard supply power supply and component supply power supply, to provide a mainboard voltage and a component voltage respectively,
To drive a mainboard and a computer system component respectively, it is characterised in that the tool includes：
One mainboard voltage inputs slot, connects the mainboard supply power supply, and receive the mainboard voltage；
One mainboard voltage exports slot, connects the mainboard, and export the power supply needed for the mainboard；
One mainboard voltage and current measurement circuit, input slot with the mainboard voltage respectively and mainboard voltage output is inserted
Groove mutually couples, mainboard voltage and the current measurement circuit measure the mainboard supply power supply be supplied to the mainboard voltage and
Electric current；
One component voltage inputs slot, connects the component supply power supply, and receive the component voltage；
One component voltage exports slot, connects the computer system component, and export needed for the computer system component
Power supply；
One component voltage and current measurement circuit, input slot with the component voltage respectively and component voltage output is inserted
Groove mutually couples, and component voltage and the current measurement circuit measures the component supply power supply and is supplied to the computer system group
The voltage and electric current of part；And
One microcontroller, to control mainboard voltage and the current measurement circuit and the component voltage and current measurement electricity
Road, and the microcontroller receives the mainboard voltage and current measurement circuit and the component voltage and current measurement circuit
The voltage and current measurement result that are returned simultaneously export voltage and the current measurement result,
Wherein described mainboard voltage and current measurement circuit further include：
One first resistor, input slot with the mainboard voltage and mainboard voltage output slot mutually couples；And
One first analog-digital converter, the voltage difference at the first resistor both ends is measured, to obtain equivalent current value, and
It is converted into digital signal and is sent to the microcontroller,
Wherein described component voltage and current measurement circuit further include：
One second resistance, input slot with the component voltage and component voltage output slot mutually couples；And
One second analog-digital converter, the voltage difference at the second resistance both ends is measured, to obtain equivalent current value, and
It is converted into digital signal and is sent to the microcontroller.
2. the tool of the voltage and electric current according to claim 1 for measuring power supply, it is characterised in that wherein described mainboard supplies
Power supply and the component is answered to supply power supply and come from a power supply unit for meeting ATX standards.
3. the tool of the voltage and electric current according to claim 1 for measuring power supply, it is characterised in that wherein further include a master
Plate voltage indicator lamp, it is electrically connected with the microcontroller, when the value that the microcontroller measures the mainboard voltage is normal
When, the microcontroller sends a signal and starts the mainboard voltage indicator lamp.
4. the tool of the voltage and electric current according to claim 1 for measuring power supply, it is characterised in that wherein described microcontroller
Device is optionally to supply power supply, component supply power supply by the mainboard or supplied by an external supply-voltage source
Electricity.
5. the tool of the voltage and electric current according to claim 1 for measuring power supply, it is characterised in that wherein described mainboard electricity
Pressure and current measurement circuit or the component voltage and current measurement circuit are optionally to supply power supply, institute by the mainboard
State component supply power supply or be powered by an external supply-voltage source.
6. a kind of voltage of power supply and the method for measurement of electric current, applied to a personal computer system, the personal computer system
System includes multiple mainboard supply power supplys and multiple components supply power supply, to provide multiple mainboard voltages and multiple groups respectively
Part voltage, to drive a mainboard and multiple computer system components respectively, it is characterised in that the measurement side of the source current
Method comprises the steps of：
Whether the value for detecting the multiple mainboard voltage is all normal；
The multiple mainboard voltages of a microprocessor control and current measurement circuit is ordered to measure the multiple mainboard supply power supply respectively
The voltage and electric current of the mainboard are supplied to, wherein the mainboard voltage and current measurement circuit include：One first resistor, with institute
State mainboard voltage input slot and mainboard voltage output slot mutually couples；And one first analog-digital converter, institute
State mainboard voltage, the mainboard current value to convert equivalent that the first analog-digital converter measures the first resistor both ends；
The multiple component voltages of the microprocessor control and current measurement circuit are ordered, measures the multiple component supply electricity respectively
Source is supplied to the voltage and electric current of the multiple computer system component, wherein the component voltage and current measurement circuit bag
Contain：One second resistance, input slot with the component voltage and component voltage output slot mutually couples；And one second
Analog-digital converter, second analog-digital converter measure the component voltage at the second resistance both ends, converting
Equivalent component current value；And
The microcontroller is ordered to receive the multiple mainboard voltage and current measurement circuit and the multiple component voltage and electricity
Voltage and current measurement result that flow slowdown monitoring circuit is returned simultaneously export voltage and the current measurement result.
7. a kind of voltage of power supply and the method for measurement of electric current, applied to a personal computer system, the personal computer system
System includes multiple mainboard supply power supplys and multiple components supply power supply, to provide multiple mainboard voltages and multiple groups respectively
Part voltage, to drive a mainboard and multiple computer system components respectively, it is characterised in that the measurement side of the source current
Method comprises the steps of：
Whether the value for detecting the multiple mainboard voltage is all normal；
Order the multiple mainboard voltages of a microprocessor control and current measurement circuit and multiple component voltages and current measurement electricity
Road, wherein the mainboard voltage and current measurement circuit include a first resistor and one first analog-digital converter, and institute
State component voltage and current measurement circuit includes a second resistance and one second analog-digital converter；
With the first resistor and the multiple component voltage and electric current of the multiple mainboard voltage and current measurement circuit
The second resistance of measurement circuit, normally the multiple mainboard supply-voltage source is supplied to the mainboard to separately sampled voltage
Electric current and the multiple component supply-voltage source be supplied to the electric current of the multiple computer system component；
With the multiple mainboard voltage and first analog-digital converter of current measurement circuit and the multiple component
Second analog-digital converter of voltage and current measurement circuit, measures the multiple mainboard voltage and current measurement respectively
The voltage and the second resistance of the multiple component voltage and current measurement circuit at the first resistor both ends of circuit
The voltage at both ends, to obtain equivalent current value, and it is converted into digital signal and is back to the microcontroller；And
The microcontroller is ordered to export the multiple mainboard voltage and current measurement circuit and the multiple component voltage and electricity
The voltage and current measurement result of flow slowdown monitoring circuit.
8. according to the voltage of the power supply described in claim 6 or 7 and the method for measurement of electric current, it is characterised in that wherein further include certainly
It is fixed to supply power supply or an external supply-voltage source with one of the multiple mainboard supply power supply, the multiple component, it is right
The step of tool of one measurement source current is powered.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310307761.7A CN104330606B (en) | 2013-07-22 | 2013-07-22 | Measure the voltage of power supply and the tool and its method for measurement of electric current |
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| CN201310307761.7A CN104330606B (en) | 2013-07-22 | 2013-07-22 | Measure the voltage of power supply and the tool and its method for measurement of electric current |
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| CN104749462B (en) * | 2015-03-20 | 2018-04-27 | 广东小天才科技有限公司 | A kind of electric property indication test method and device |
| CN106896310B (en) * | 2015-12-18 | 2019-06-25 | 技嘉科技股份有限公司 | Measuring system |
| CN106896311B (en) * | 2015-12-18 | 2020-01-10 | 技嘉科技股份有限公司 | Measuring tool |
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| CN1459637A (en) * | 2002-05-20 | 2003-12-03 | 神达电脑股份有限公司 | Working voltage testing method of power supplier and its system |
| CN2852141Y (en) * | 2005-10-24 | 2006-12-27 | 技嘉科技股份有限公司 | Apparatus for monitoring power supply provider output |
| JP4729384B2 (en) * | 2005-11-07 | 2011-07-20 | 株式会社アドバンテスト | Measuring apparatus and measuring method |
| US20080018325A1 (en) * | 2006-07-21 | 2008-01-24 | Hon Hai Precision Industry Co., Ltd. | Apparatus and method for measuring an output power of a power supply |
| CN201184992Y (en) * | 2008-04-23 | 2009-01-21 | 微星科技股份有限公司 | System power supply management card and computer host board embedded with the same |
| CN101738534B (en) * | 2008-11-24 | 2013-07-31 | 名硕电脑(苏州)有限公司 | Voltage test device and voltage test method |
| CN102540104A (en) * | 2010-12-28 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Testing device |
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