CN207528798U - For measuring the system of electric current, measurement plate and circuit board - Google Patents
For measuring the system of electric current, measurement plate and circuit board Download PDFInfo
- Publication number
- CN207528798U CN207528798U CN201721218940.3U CN201721218940U CN207528798U CN 207528798 U CN207528798 U CN 207528798U CN 201721218940 U CN201721218940 U CN 201721218940U CN 207528798 U CN207528798 U CN 207528798U
- Authority
- CN
- China
- Prior art keywords
- measured
- electric current
- circuit
- measuring
- chip
- 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
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a kind of for measuring the system, measurement plate and circuit board of electric current.The system includes the circuit board of electric current to be measured, including：Chip to be measured, setting is on circuit boards；A plurality of circuit to be measured, connect with chip to be measured, and every circuit is both provided with measurement resistance；Measurement plate, including：Multiple first interfaces, for connecting multiple measurement resistance of a plurality of circuit to be measured respectively；Multiple measuring circuits, the input terminal of multiple measuring circuits are connect respectively with multiple first interfaces, and each measuring circuit is used to measure the electric current of corresponding circuit to be measured；Second interface is connect with the output terminal of multiple measuring circuits；Wherein, chip to be measured is connect with second interface, for obtaining the electric current of a plurality of circuit to be measured.The utility model can measure the electric current of multiple circuits to be measured simultaneously, improve efficiency.
Description
Technical field
The utility model is related to current measurement techniques field, more particularly to a kind of system, measurement for being used to measure electric current
Plate and circuit board.
Background technology
Electronic equipment usually requires to set at least one chip at present, all comprising many function modules, such as number letter
Number processor (DSP), central processing unit (CPU), graphics processing unit (GPU) etc., supply voltage, the electricity of each function module
Stream is all different, so, different function modules is all powered by different power supply modules.
Since the electric current on every road is high current, the prior art measures the electric current per road by ammeter, and ammeter can produce
Raw pressure difference causes the current value that ammeter measurement obtains inaccurate, and is only capable of measuring current value all the way, and efficiency is low.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of system, measurement plate and circuit for being used to measure electric current
Plate can measure multichannel electric current simultaneously, improve efficiency.
In order to solve the above technical problems, the technical solution that the utility model uses is：One kind is provided for measuring electricity
The system of stream, including：The circuit board of electric current to be measured, including：Chip to be measured, setting is on circuit boards；A plurality of circuit to be measured,
It is connect with chip to be measured, every circuit is both provided with measurement resistance；Measurement plate, including：Multiple first interfaces, for connecting respectively
Connect multiple measurement resistance of a plurality of circuit to be measured；Multiple measuring circuits, the input terminals of multiple measuring circuits is respectively with multiple first
Interface connects, and each measuring circuit is used to measure the electric current of corresponding circuit to be measured；Second interface, it is defeated with multiple measuring circuits
Outlet connects；Wherein, chip to be measured is connect with second interface, for obtaining the electric current of a plurality of circuit to be measured.
In order to solve the above technical problems, another technical solution that the utility model uses is：One kind is provided for measuring
The measurement plate of electric current, including：Multiple first interfaces are connect with the circuit board of electric current to be measured；Multiple measuring circuits, multiple surveys
The input terminal of amount circuit is connect respectively with multiple first interfaces, and each measuring circuit flows through the chip to be measured of circuit board for measuring
A module electric current；Second interface is connect with the output terminal of multiple measuring circuits, for output current.
In order to solve the above technical problems, another technical solution that the utility model uses is：A kind of circuit board is provided,
Including：Multiple measurement resistance；Chip to be measured, wherein chip to be measured has multiple modules, multiple measurement resistance are connected in series to respectively to be treated
Each module for power supply circuit of chip is surveyed, multiple electric currents for measuring resistance is flowed through and is measured by multiple measuring circuits；Core wherein to be measured
Piece is connect with the output terminal of multiple measuring circuits, for obtaining electric current.
The beneficial effects of the utility model are：It is different from the situation of the prior art, the measurement plate of the utility model passes through more
A first interface connects multiple measurement resistance of a plurality of circuit to be measured respectively, and the input terminals of multiple measuring circuits is respectively with multiple
One interface connects, and each measuring circuit is used to measure the electric current of corresponding circuit to be measured, and chip to be measured is connect with second interface, is used
In the electric current for obtaining a plurality of circuit to be measured；Therefore chip to be measured can be measured multiple simultaneously by multiple measuring circuits of measurement plate
The electric current of circuit to be measured improves efficiency；And it avoids directly measuring high current using ammeter, improves and measure the accurate of electric current
Rate.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.Wherein：
Fig. 1 is the schematic diagram for being used to measure the system of electric current of the first embodiment of the utility model；
Fig. 2 is the schematic diagram for being used to measure the system of electric current of the second embodiment of the utility model；
Fig. 3 is the schematic diagram of the measurement plate of the first embodiment of the utility model；
Fig. 4 is the schematic diagram of the circuit board of the first embodiment of the utility model.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than all real
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of performing creative labour is made
All other embodiments obtained shall fall within the protection scope of the present invention.
Shown in Figure 1, Fig. 1 is the signal for being used to measure the system of electric current of the first embodiment of the utility model
Figure.The revealed system 10 of the present embodiment includes the circuit board 11 of electric current to be measured and measurement plate 12, wherein electric current to be measured
Circuit board 11 includes chip to be measured (System on Chip, SOC) 111 and a plurality of circuit to be measured 112, and measurement plate 12 includes multiple
First interface 121, multiple measuring circuits 122 and second interface 123.
Chip 111 to be measured is arranged on circuit board 11, and multiple circuits 112 to be measured are connect with chip 111 to be measured, and every is treated
Survey line road 112, which is correspondingly arranged on, measures resistance 113.Multiple first interfaces 121 are used to connect a plurality of circuit to be measured 112 respectively
Multiple measurement resistance 113, i.e., each first interface 121 are connected to the corresponding both ends for measuring resistance 113；Multiple measuring circuits
122 input terminal is connect respectively with multiple first interfaces 121, and each measuring circuit 122 corresponding treats survey line for measuring to flow through
The electric current on road 112；Second interface 123 is connect with the output terminal of multiple measuring circuits 122, chip 111 to be measured and second interface 123
Connection, for obtaining the electric current of a plurality of circuit to be measured 112.The chip 111 to be measured further can be by a plurality of circuit 112 to be measured
Electric current is compared respectively with preset current value, to obtain comparison result, and adjusts a plurality of circuit to be measured according to comparison result
112 electric current, such as：The electric current of circuit 112 to be measured is more than preset current value, then reduces the electric current of the circuit 112 to be measured；It treats
The electric current on survey line road 112 is less than preset current value, then increases the electric current of the circuit to be measured.
Specifically, chip 111 to be measured includes multiple modules 114, and multiple measurement resistance 113 connect multiple modules 114 respectively,
And multiple measurement resistance 113 are positioned close to multiple modules 114 and set, to reduce measurement error.Wherein, multiple modules 114
Digital Signal Processing (Digital Signal Processing, DSP) module, processor (Central can be included
Processing Unit, CPU) module and image procossing (Graphics Processing Unit, GPU) module, i.e., multiple surveys
Amount resistance is connected in series to the current supply circuit of the digital signal processing module of chip to be measured, processor module, image processing module respectively
In.
Wherein, the electric current of a plurality of circuit to be measured 112 is respectively the high current for flowing through multiple modules 114, i.e., a plurality of to treat survey line
The electric current on road 112 can be respectively flow through digital signal processing module high current, flow through processor module high current and
Flow through the high current of image processing module.
Optionally, multiple first interfaces 121 connect corresponding measurement resistance 113 by a plurality of connecting line 13 respectively, i.e., often
One end of connecting line 13 connects corresponding first interface 121, and the other end of every connecting line 13 connects corresponding measurement resistance
113 both ends, the wherein other end of connecting line 13 are arranged on close to resistance 113 is measured on circuit board 11, to improve measurement electric current
Precision.
Wherein, the resistance value for measuring resistance 113 is inversely proportional with the electric current of corresponding circuit 112 to be measured, i.e., circuit 112 to be measured
Electric current is bigger, and the resistance value for measuring resistance 113 is smaller.Such as the measurement resistance 113 on the circuit to be measured 112 of corresponding CPU and GPU
Resistance be set as 0.01 Europe, the measurement electric current on the circuit to be measured 112 of corresponding CPU is 8000 milliamperes.
Specifically, multiple measuring circuits 122 obtain multiple pressure drops for measuring resistance 113 by multiple first interfaces 121,
Then the corresponding resistance value for measuring resistance 113 of inquiry, according to multiple pressure drops for measuring resistance 113 and multiple resistances for measuring resistance 113
The electric current of multiple circuits to be measured 112 is calculated in value.
Further, chip 111 to be measured can pass through UART (Universal Asynchronous Receiver-
Transmitter, universal asynchronous receiving-transmitting transmitter) line connect with second interface 123, to obtain the electricity of multiple circuits to be measured 112
Stream.Wherein, second interface 123 can be I2C interface.
Wherein, which can include a plurality of circuit to be measured, such as ten circuits 112 to be measured, measurement plate
12 for measuring the electric current of ten circuits 112 to be measured simultaneously, and chip 111 to be measured obtains ten circuits 112 to be measured from measurement plate 12
Electric current, improve efficiency.
The measurement plate 12 of the present embodiment can measure the electric current of a plurality of circuit to be measured 112 simultaneously, improve efficiency；And it measures
Pressure drop caused by resistance 113 is small, improves the accuracy rate for measuring electric current.
The utility model further provide for second embodiment for the system that measures electric current, disclosed in first embodiment
For measure the system of electric current the difference lies in：As shown in Fig. 2, the measurement plate 12 of the present embodiment further comprises handling core
Piece 124 and the display screen 125 being connect with processing chip 124, processing chip 124 are connect with the output terminal of multiple measuring circuits 122,
For obtaining the electric current of a plurality of circuit to be measured 112, and the electric current of a plurality of circuit 112 to be measured is included on the display screen 125, with
It allows users to know current value in time, improves the experience of user.
The output terminal of processing chip 124 is connect with second interface 123, and processing chip 124 is used for a plurality of circuit 112 to be measured
Electric current handled, and pass through second interface 123 and handling result is sent to chip 111 to be measured, to improve measurement plate 12
Performance.
The utility model further provides for the measurement plate of first embodiment, as shown in figure 3, the revealed measurement of the present embodiment
Plate 40 includes multiple first interfaces 41, multiple measuring circuits 42, second interface 43,44 and second connecting line of a plurality of first connecting line
45.Wherein, multiple first interfaces 41 are connect with the circuit board 46 of electric current to be measured；The input terminal of multiple measuring circuits 42 respectively with
Multiple first interface connections, each measuring circuit 42 flow through the electricity of a module of the chip to be measured of circuit board 46 for measurement
Stream；Second interface 43 is connect with the output terminal of multiple measuring circuits 42, for output current.
Wherein, one end connection first interface 41 of the first connecting line 44, the other end connection circuit board of the first connecting line 44
The testing resistance of 46 chip to be measured, measuring circuit 42 obtain the voltage at testing resistance both ends, and root by the first connecting line 44
Electric current can be obtained according to the voltage at testing resistance both ends and the resistance value of testing resistance.Second connecting line 45 is used to connect second interface 43
With the chip to be measured of circuit board 46 so that chip to be measured gets electric current.Second connecting line 45 can be UART connecting lines, and second connects
Mouth 43 can be I2C interface.
Wherein, multiple measuring circuits 42 can include ten measuring circuits 42, and ten measuring circuits are for ten lines of measurement
The electric current on road, therefore the measurement plate 40 of the present embodiment can measure the electric current of ten circuits simultaneously, to improve efficiency.
Originally the measurement plate 40 for being embodiment can be the revealed measurement plate of above-described embodiment, and details are not described herein.
The utility model further provides for the circuit board of first embodiment, as shown in figure 4, the circuit board 50 includes multiple surveys
Resistance 51 and chip to be measured 52 are measured, wherein chip to be measured 52 has multiple modules 53, multiple measurement resistance 51 are connected in series to respectively to be treated
It surveys in 53 current supply circuit of multiple modules of chip 52, flows through multiple electric currents for measuring resistance 51 and measured by multiple measuring circuits 54.
Wherein, chip 52 to be measured is connect with the output terminal of multiple measuring circuits 54, for obtaining electric current.Multiple measurement resistance
51 are set close to multiple modules 53, to improve the precision for measuring electric current；Multiple modules 53 include digital signal processing module, processing
Device module and image processing module.
Originally the circuit board 50 for being embodiment can be the revealed circuit board of above-described embodiment, and details are not described herein.
In conclusion the measurement plate of the utility model connects the multiple of a plurality of circuit to be measured respectively by multiple first interfaces
Resistance is measured, the input terminal of multiple measuring circuits is connect respectively with multiple first interfaces, and each measuring circuit is used to measure correspondence
Circuit to be measured electric current, chip to be measured is connect with second interface, for obtaining the electric current of a plurality of circuit to be measured；Therefore core to be measured
Piece can measure the electric current of multiple circuits to be measured by multiple measuring circuits of measurement plate simultaneously, improve efficiency；And it avoids making
High current is directly measured with ammeter, improves the accuracy rate for measuring electric current.
The foregoing is merely the embodiments of the utility model, and it does not limit the scope of the patent of the present invention, all
It is equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly or indirectly uses
In other related technical areas, it is equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of system for measuring electric current, which is characterized in that the system comprises：
The circuit board of electric current to be measured, including：
Chip to be measured is arranged on the circuit board；
A plurality of circuit to be measured is connect with the chip to be measured, and every circuit is both provided with measurement resistance；
Measurement plate, including：
Multiple first interfaces, for connecting multiple measurement resistance of a plurality of circuit to be measured respectively；
Multiple measuring circuits, the input terminal of the multiple measuring circuit are connect respectively with the multiple first interface, each described
Measuring circuit is used to measure the electric current of corresponding circuit to be measured；
Second interface is connect with the output terminal of the multiple measuring circuit；
Wherein, the chip to be measured is connect with the second interface, for obtaining the electric current of a plurality of circuit to be measured.
2. system according to claim 1, which is characterized in that the chip to be measured includes multiple modules, the multiple survey
Amount resistance connects the multiple module respectively, and the multiple measurement resistance is set close to the multiple module.
3. system according to claim 2, which is characterized in that the multiple module includes Digital Signal Processing (DSP) mould
Block, processor (CPU) module and image procossing (GPU) module, the electric current of a plurality of circuit to be measured be respectively flow through it is described more
The high current of a module.
4. system according to claim 1, which is characterized in that a plurality of circuit to be measured includes ten circuits to be measured, institute
State the electric current that chip to be measured obtains described ten circuits to be measured from the measurement plate.
5. system according to claim 1, which is characterized in that the measurement resistance value of resistance and the electric current of corresponding circuit
It is inversely proportional.
6. a kind of measurement plate for being used to measure electric current, which is characterized in that including：
Multiple first interfaces are connect with the circuit board of electric current to be measured；
Multiple measuring circuits, the input terminal of the multiple measuring circuit are connect respectively with the multiple first interface, each described
Measuring circuit flows through the electric current of a module of the chip to be measured of the circuit board for measurement；
Second interface is connect with the output terminal of the multiple measuring circuit, for exporting the electric current.
7. measurement plate according to claim 6, which is characterized in that the measurement plate further comprises a plurality of first connecting line
With the second connecting line, one end of first connecting line connects the first interface, the other end connection of first connecting line
The testing resistance of the chip to be measured of the circuit board, second connecting line are used to connect the second interface and the circuit board
Chip to be measured.
8. measurement plate according to claim 6, which is characterized in that the multiple measuring circuit includes ten measuring circuits,
Described ten measuring circuits are used to measure the electric current of ten circuits.
9. a kind of circuit board can measure electric current, which is characterized in that including：
Multiple measurement resistance；
Chip to be measured, wherein chip to be measured has multiple modules, multiple multiple moulds for measuring resistance and being connected in series to chip to be measured respectively
In block current supply circuit, flow through the multiple electric current for measuring resistance and measured by multiple measuring circuits；
Wherein described chip to be measured is connect with the output terminal of the multiple measuring circuit, for obtaining the electric current.
10. circuit board according to claim 9, which is characterized in that the multiple measurement resistance is close to the multiple module
Setting, the multiple module include digital signal processing module, processor module and image processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218940.3U CN207528798U (en) | 2017-09-21 | 2017-09-21 | For measuring the system of electric current, measurement plate and circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218940.3U CN207528798U (en) | 2017-09-21 | 2017-09-21 | For measuring the system of electric current, measurement plate and circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207528798U true CN207528798U (en) | 2018-06-22 |
Family
ID=62569089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218940.3U Expired - Fee Related CN207528798U (en) | 2017-09-21 | 2017-09-21 | For measuring the system of electric current, measurement plate and circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207528798U (en) |
-
2017
- 2017-09-21 CN CN201721218940.3U patent/CN207528798U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102998644B (en) | Calibration system for direct current resistance tester | |
| CN105629052B (en) | Chip power-consumption real-time detection method | |
| CN102298132A (en) | Calibrating device of grounding conduction resistance tester | |
| CN205049678U (en) | Short circuit testing arrangement is opened to camera module | |
| CN112083309B (en) | Intelligent test system and method for memory plate | |
| CN105785131A (en) | Testing device and method for low ohm chip resistors | |
| CN207528798U (en) | For measuring the system of electric current, measurement plate and circuit board | |
| CN205581288U (en) | High accuracy direct current electric energy meter | |
| CN106443549A (en) | Analog alternating current resistance device for calibrating battery internal resistance tester | |
| CN106707213A (en) | Digital integrated circuit standard sample chip | |
| CN207423763U (en) | A kind of quick diagnosis ground net corrosion state device | |
| CN108572273B (en) | Low current measuring circuit and measuring method thereof | |
| CN104977444B (en) | A kind of current sampling circuit | |
| CN211123024U (en) | PCB branch current detection device and PCB detection system | |
| CN205539435U (en) | On --spot check gauge of multi -functional electric energy meter | |
| CN107976568A (en) | A kind of current measuring method and its system | |
| CN207424160U (en) | Utilize the device of conducting wire location of short circuit on constant-current source positioning line fault plate | |
| CN201535784U (en) | Aging test substrate | |
| CN113009223B (en) | Impedance measuring method | |
| CN104090153A (en) | Detection system and detection method of liquid crystal module multi-channel power supply | |
| CN2929729Y (en) | Output power measuring device for power supply device | |
| CN207474838U (en) | A kind of New-type radio-frequency connector | |
| CN104833934B (en) | Earth resistance tester calibration equipment | |
| CN202330515U (en) | Multi-measuring range current measurement parallel display unit | |
| CN106771487A (en) | The method of measuring instrument, the method for measurement electric current and measurement mobile phone charging current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20210921 |