CN206990774U - A kind of intelligent electric power parameter detection device - Google Patents
A kind of intelligent electric power parameter detection device Download PDFInfo
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- CN206990774U CN206990774U CN201720965431.0U CN201720965431U CN206990774U CN 206990774 U CN206990774 U CN 206990774U CN 201720965431 U CN201720965431 U CN 201720965431U CN 206990774 U CN206990774 U CN 206990774U
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Abstract
The utility model discloses a kind of intelligent electric power parameter detection device, belong to power detector field, power parameter detection means includes embedded controller, signal acquisition circuit, drive circuit, and power circuit, the current sampling port of the signal acquisition circuit is connected by the first isolating amplifier circuit with the first signal input part of the embedded controller, the voltage sampling port of the signal acquisition circuit is connected by the second isolating amplifier circuit with the secondary signal input of the embedded controller, the pwm signal output end of the embedded controller passes through optical coupling isolation circuit, filter circuit is connected with the signal input part of the drive circuit.Intelligent electric power parameter detection device provided by the utility model, the detection limits such as electric current, voltage can be isolated and amplified, detection quick and precisely, can be realized and determine voltage, determine electric current, determine resistance and determine four kinds of detection patterns of power.
Description
Technical field
Power detector field is the utility model is related to, more particularly to a kind of intelligent electric power parameter detecting fills
Put.
Background technology
In the electronic information epoch, D.C. regulated power supply is a kind of electric energy feedway being most widely used, and it extensively should
For mobile phone, notebook, toy, laboratory apparatus etc., some arrange the equipment for needing dc source.D.C. regulated power supply stability and
The stability and reliability of reliability and electronic product are closely bound up, and the unstable of power supply not only easily causes electronic product performance
It is unstable, and easily there is superheating phenomenon, the D.C. regulated power supply of excellent performance is often that electronic product is normal for a long time
The important leverage used.How can guarantee that D.C. regulated power supply has excellent performanceFirstly the need of to D.C. regulated power supply
Performance parameter detected, obtain several basic parameters of D.C. regulated power supply, such as：Power and efficiency parameters etc., so as to
The quality of electronic product is adjusted in time for production and quality inspection.
Chinese patent literature publication number CNCN101191825U discloses a kind of direct-current power supply detection device, including a multistage
Bleeder circuit, an analog-digital converter and a controller.The multistage bleeder circuit includes at least two electronic switches, at least two
Shunt resistance and a main road resistance, the first pole of the electronic switch pass through corresponding shunt resistance and the main road resistance respectively
First end be connected, the second pole of electronic switch ground connection, the second end of the main road resistance is connected with dc source to be measured,
The analog-digital converter is connected with the first end of the main road resistance, the controller and the analog-digital converter and
The 3rd of the electronic switch is extremely connected, and the controller is according to the corresponding electronics of output control of the analog-digital converter
Switch conduction, the shunt resistance that the electronic switch with the conducting is connected is set to be turned on ground.This direct-current power supply detection device exists
Different detection limits is not subjected to isolation amplification during parameter detecting, the stability and precision of detection is not high, it is difficult to
The quality of product is evaluated.
The content of the invention
The defects of in order to overcome prior art, technical problem to be solved in the utility model are to propose that one kind is intelligent
Power parameter detection means, can to the detection limits such as electric current, voltage isolate amplify, detection quick and precisely, can realize determine voltage,
Determine electric current, determine resistance and determine four kinds of detection patterns of power, and be detected power connecting method, can effectively lift power supply manufacture
The production efficiency of business.
To use following technical scheme up to this purpose, the utility model：
The utility model provides a kind of intelligent electric power parameter detection device, including embedded controller, signal acquisition
Circuit, drive circuit and power circuit, the current sampling port of the signal acquisition circuit by the first isolating amplifier circuit with
First signal input part of the embedded controller is connected, and the voltage sampling port of the signal acquisition circuit passes through the second isolation
Amplifying circuit is connected with the secondary signal input of the embedded controller, the pwm signal output of the embedded controller
End is connected by optical coupling isolation circuit, filter circuit with the signal input part of the drive circuit, and the drive circuit passes through institute
The signal output part that power circuit is stated with the signal acquisition circuit is connected, current value, the electricity of the signal acquisition circuit collection
After pressure value carries out isolation amplification by first isolating amplifier circuit, second isolating amplifier circuit respectively, transmit to institute
Embedded controller is stated, the embedded controller calculates pwm signal according to preset algorithm, and the pwm signal passes through the light
After coupling isolation circuit is isolated, and circuit is filtered processing after filtering again, transmit to the drive circuit, the driving
Power circuit described in circuit drives controls power supply output stabling current and burning voltage to be measured.
The utility model preferably technical scheme, in addition to feedback control circuit, the input of the feedback control circuit
It is connected with the signal acquisition circuit, the output end of the feedback control circuit is connected with the drive circuit.
The utility model preferably technical scheme, in addition to input through keyboard circuit, the input through keyboard circuit with it is described embedding
The command input for entering formula controller is connected.
The utility model preferably technical scheme, in addition to display driver circuit, the display letter of the embedded controller
Number output end is connected with the display driver circuit.
The utility model preferably technical scheme, in addition to telecommunication circuit, the output end of the telecommunication circuit with it is described embedding
The signal of communication input for entering formula controller is connected, signal of communication output end and the telecommunication circuit of the embedded controller
Input be connected.
The utility model preferably technical scheme, in addition to electric power management circuit, the electric power management circuit with it is described embedding
It is equal to enter formula controller, the drive circuit, the optical coupling isolation circuit, the input through keyboard circuit and the filter circuit
Electrical connection.
The utility model preferably technical scheme, the signal acquisition circuit include test port, voltage sample resistance and
Current sampling resistor, the voltage sample resistance are arranged in parallel with the test port, the current sampling resistor and the survey
Examination port is arranged in series.
The utility model preferably technical scheme, the voltage sample resistance include first voltage sampling resistor and second
Voltage sample resistance, the first voltage sampling resistor are connected with the second voltage sampling resistor, the second isolation amplification
Wire between the input of circuit and the first voltage sampling resistor, the second voltage sampling resistor electrically connects, described
One end of current sampling resistor is connected with one end of the second voltage sampling resistor, the other end of the current sampling resistor with
First isolating amplifier circuit is connected.
The utility model preferably technical scheme, the embedded controller are configured to STC12C5620AD single-chip microcomputers, institute
State the second isolated amplifier in the first isolated amplifier in the first isolating amplifier circuit and/second isolating amplifier circuit
HCPL788 is configured to, the power circuit is configured to metal-oxide-semiconductor circuit.
The utility model preferably technical scheme, the input through keyboard circuit are configured to 4 × 4 matrix keyboards.
The beneficial effects of the utility model are：
Intelligent electric power parameter detection device provided by the utility model, there is provided the first isolating amplifier circuit and second every
From amplifying circuit, enable to the isolation amplification of the detection limits such as electric current, voltage, avoid power circuit from producing interference, this be due to
The connected power circuit of sampling end is typically configured to metal-oxide-semiconductor, and power circuit voltage and current excursion is bigger, and electricity to be measured
Source can also produce much noise and electromagnetic interference on power circuit, stable so as to influence the detection of power parameter detection means
Property, accuracy and reliability, and just can effectively be solved the above problems there is provided isolating amplifier circuit.There is provided input through keyboard
Circuit, default power technology parameter can easily be inputted by input through keyboard circuit, greatly improve power parameter detection
The practicality of device.
Brief description of the drawings
Fig. 1 is the structural representation for the intelligent electric power parameter detection device that the utility model embodiment provides；
Fig. 2 is the circuit diagram for the embedded controller that the utility model embodiment provides；
Fig. 3 is the circuit diagram for the input through keyboard circuit that the utility model embodiment provides；
Fig. 4 is the circuit diagram for the display driver circuit that the utility model embodiment provides.
In figure：
1st, embedded controller；2nd, signal acquisition circuit；3rd, drive circuit；4th, power circuit；5th, the first isolation amplification electricity
Road；6th, the second isolating amplifier circuit；7th, optical coupling isolation circuit；8th, filter circuit；9th, feedback control circuit；10th, input through keyboard electricity
Road；11st, telecommunication circuit；12nd, electric power management circuit；13rd, display driver circuit；21st, test port；23rd, current sampling resistor；
221st, first voltage sampling resistor；222nd, second voltage sampling resistor.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in figure 1, a kind of intelligent electric power parameter detection device provided in the present embodiment, including embedded controller
1st, signal acquisition circuit 2, drive circuit 3, power circuit 4, the first isolating amplifier circuit 5, the second isolating amplifier circuit 6, optocoupler
Isolation circuit 7 and filter circuit 8, embedded controller 1 are used for control signal Acquisition Circuit 2, drive circuit 3 and power circuit
4 etc., and pwm signal can be calculated by preset algorithm, so as to be controlled to drive circuit 3, signal acquisition circuit 2 is mainly used
In collection voltages signal and current signal etc., drive circuit 3 is mainly used in driving power circuit 4 and signal acquisition circuit 2, power
Circuit 4 is configured to metal-oxide-semiconductor circuit, and the first isolating amplifier circuit 5, the second isolating amplifier circuit 6 are respectively used to current signal, voltage
The isolation amplification of signal, optical coupling isolation circuit 7 are used for the isolation of pwm signal, and filter circuit 8 is used for the filtering of pwm signal.Signal
The first signal input part phase that the current sampling port of Acquisition Circuit 2 passes through the first isolating amplifier circuit 5 and embedded controller 1
Even, the voltage sampling port of signal acquisition circuit 2 is defeated by the secondary signal of the second isolating amplifier circuit 6 and embedded controller 1
Enter end to be connected, the second isolation in the first isolated amplifier and the/the second isolating amplifier circuit 6 in the first isolating amplifier circuit 5
Amplifier is configured to HCPL788.The pwm signal output end of embedded controller 1 by optical coupling isolation circuit 7, filter circuit 8 with
The signal input part of drive circuit 3 is connected, specifically, the pwm signal output end of embedded controller 1 and optical coupling isolation circuit 7
Input be connected, the output end of optical coupling isolation circuit 7 is connected with the input of filter circuit 8, the output end of filter circuit 8 with
The signal input part of drive circuit 3 is connected.The signal output part phase that drive circuit 3 passes through power circuit 4 and signal acquisition circuit 2
Even.Current value, the magnitude of voltage of the collection of signal acquisition circuit 2 pass through the first isolating amplifier circuit 5, the second isolating amplifier circuit respectively
After 6 carry out isolation amplification, transmit to embedded controller 1, embedded controller 1 and calculate pwm signal, PWM according to preset algorithm
After signal is isolated by optical coupling isolation circuit 7, and circuit 8 is filtered processing after filtering again, transmit to drive circuit
3, the driving power circuit 4 of drive circuit 3 controls power supply output stabling current and burning voltage to be measured.From current value, magnitude of voltage
Collect the driving power circuit 4 of drive circuit 3 and control power supply to be measured, a closed-loop control system is just formed, so as to ensure to treat
Survey power supply accurately, stably export stabling current and burning voltage.
In order to further improve the stability of intelligent electric power parameter detection device and reliability, it is preferable that intelligent electric
Source parameter detection device also includes feedback control circuit 9, and the input of feedback control circuit 9 is connected with signal acquisition circuit 2, instead
The output end of feedback control circuit 9 is connected with drive circuit 3, and feedback control circuit 9 can improve drive circuit 3 and power circuit 4
The stability and reliability of gain, and then lift the overall accuracy of detection of intelligent electric power parameter detection device.
As shown in Fig. 2 for the ease of effectively being controlled intelligent electric power parameter detection device, it is preferable that embedded
Formula controller 1 is configured to STC12C5620AD single-chip microcomputers, and STC12C5620AD single-chip microcomputers are connected with crystal oscillating circuit and reset circuit,
The power end of STC12C5620AD single-chip microcomputers is additionally provided with bypass circuit, for eliminating High-frequency Interference.STC12C5620AD monolithics
PWM0 the and PWM1 pins of machine are used for the output of pwm signal, and ADC0 is used for the input that electric current uses passage 1, and ADC1 is used for electricity
The input of sampling channel 2 is flowed, ADC2 is used for the input of voltage sample passage, and tri- pins of MOSI, MISO, SCLK are used for and display
Drive circuit 13 enters row data communication, realizes the display directly perceived of testing result, and two pins of RXD and TXD are used for and serial port chip
MAX232 enters row data communication, and P2.0, P2.1, P2.2, P2.3, P2.5, P2.6, P2.7 have 7 I/O pins altogether and be used for keyboard
Input circuit 10 is scanned.
The basic parameter of control instruction or power supply to be measured is inputted in order to facilitate user, it is preferable that intelligent electric power parameter
Detection means also includes input through keyboard circuit 10, and input through keyboard circuit 10 is connected with the command input of embedded controller 1, from
And realize the input of power supply basic parameter to be measured.As shown in figure 3, it is further preferred that input through keyboard circuit 10 is configured to 4 × 4
Matrix keyboard, 4 × 4 matrix keyboard connected modes and 4 × 4 conventional matrix keyboard connected modes in the present embodiment are not
Together, 4 × 4 conventional matrix keyboards need 8 lines to be connected with single-chip microcomputer, and 4 × 4 matrix keyboards in the present embodiment only draw 7
Root line is connected with STC12C5620AD single-chip microcomputers, be respectively line KeyBoardLine0, KeyBoardLine2,
KeyBoardLine3；Alignment KeyBoardLine4, KeyBoardLine5, KeyBoardLine6, KeyBoardLine7, together
2 diodes of Shi Duojia.
In order to facilitate display testing result, further, intelligent electric power parameter detection device also includes display driving electricity
Road 13, the display signal output part of embedded controller 1 are connected with display driver circuit 13.Display driver circuit 13 is by three
MAX7219 chips and six charactron compositions, the charactron of three MAX7219 chip drives, six quaternities.Such as Fig. 4 institutes
Show, be a piece of two quaternities of MAX7219 chip drives charactron, the DIN pins of MAX7219 chips with
STC12C5620AD single-chip microcomputer I/O pins are connected, the serial input terminal as data.The LOAD pin phases of three MAX7219 chips
Interconnection is connected together, and CLK pin interconnects, then the I/O pin with STC12C5620AD single-chip microcomputers is connected respectively, CLK
As the clock of data serial transmission, latch control terminals of the LOAD as data.
Communicated in order to facilitate intelligent electric power parameter detection device with computer or other peripheral hardwares, further,
Intelligent electric power parameter detection device also includes telecommunication circuit 11, the output end of telecommunication circuit 11 and leading to for embedded controller 1
Letter signal input part is connected, and the signal of communication output end of embedded controller 1 is connected with the input of telecommunication circuit 11, so as to real
The signal communication of the existing other equipment such as STC12C5620AD single-chip microcomputers and other computers, is easy to intelligent electric power parameter detecting to fill
Put data storage and displaying directly perceived.
In order to ensure that the power supply of intelligent electric power parameter detection device modules is supplied, intelligent electric power parameter detecting dress
Putting also includes electric power management circuit 12, electric power management circuit 12 and embedded controller 1, drive circuit 3, optical coupling isolation circuit 7,
Input through keyboard circuit 10 and filter circuit 8 electrically connect, be embedded controller 1, drive circuit 3, optical coupling isolation circuit 7,
Input through keyboard circuit 10 and the grade of filter circuit 8 main member provide power supply.Electric power management circuit 12 can realize intelligent electric
Source parameter detection device bulk supply.
As shown in figure 1, the real-time collection of voltage, current signal for convenience, further, signal acquisition circuit 2 includes
Test port 21, voltage sample resistance and current sampling resistor 23, voltage sample resistance are arranged in parallel with test port 21, electric current
Sampling resistor 23 is arranged in series with test port 21.Voltage sample resistance includes first voltage sampling resistor 221 and second voltage
Sampling resistor 222, first voltage sampling resistor 221 are connected with second voltage sampling resistor 222, the second isolating amplifier circuit 6
Wire between input and first voltage sampling resistor 221, second voltage sampling resistor 222 electrically connects, current sampling resistor
23 one end is connected with one end of second voltage sampling resistor 222, and the other end of current sampling resistor 23 isolates amplification with first
Circuit 5 is connected, so as to realize effective collection of voltage, electric current with isolating amplification.The intelligent electric power ginseng provided in the present embodiment
Number detection means is provided with the first isolating amplifier circuit 5 and the second isolating amplifier circuit 6, enables to electric current, voltage etc. to detect
Amount isolation amplification, avoids power circuit from producing interference.
In actual use, operating personnel select corresponding test function pattern and technical parameter by input through keyboard circuit 10
Preset value, pwm signal is corresponded to according to generation test function pattern and technical parameter preset value using embedded controller 1, passed through
Optical coupling isolation circuit 7, filter circuit 8 are converted into analog voltage, then by the drive control of drive circuit 3 to power circuit 4, so that
Metal-oxide-semiconductor conduction amount in power circuit 4 is controlled, metal-oxide-semiconductor absorbs required operating current at power supply to be measured.Embedded controller 1
The voltage and current Real-time Feedback of power supply to be measured is input to embedded controller 1 by real-time sampling, and in display driver circuit 13
In show, the functional mode and technical parameter preset value that embedded controller 1 inputs according to operating personnel are carried out to score
Analysis, adjusts metal-oxide-semiconductor conduction amount again after comparative analysis, until detection parameters meet the preset value of setting.Embedded controller 1
Quick, visual evaluation is provided according to whether the power technology parameter returned of detection sampling feedback is up to standard to power quality.If parameter
It is qualified, output display " Pass ", otherwise show " Not ".
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case of with new spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with new, other embodiments fallen into claims hereof all belong to
In the scope of the utility model protection.
Claims (10)
- A kind of 1. intelligent electric power parameter detection device, it is characterised in that：Including embedded controller（1）, signal acquisition circuit（2）, drive circuit（3）And power circuit（4）；The signal acquisition circuit（2）Current sampling port pass through the first isolating amplifier circuit（5）With the embedded controller （1）The first signal input part be connected, the signal acquisition circuit（2）Voltage sampling port pass through the second isolating amplifier circuit （6）With the embedded controller（1）Secondary signal input be connected；The embedded controller（1）Pwm signal output End passes through optical coupling isolation circuit（7）, filter circuit（8）With the drive circuit（3）Signal input part be connected；The driving electricity Road（3）Pass through the power circuit（4）With the signal acquisition circuit（2）Signal output part be connected；The signal acquisition circuit（2）Current value, the magnitude of voltage of collection pass through first isolating amplifier circuit respectively（5）, institute State the second isolating amplifier circuit（6）After carrying out isolation amplification, transmit to the embedded controller（1）, the embedded Control Device（1）Pwm signal is calculated according to preset algorithm, the pwm signal passes through the optical coupling isolation circuit（7）Isolated, and again Circuit after filtering（8）After being filtered processing, transmit to the drive circuit（3）, the drive circuit（3）Drive the work( Rate circuit（4）Control power supply output stabling current and burning voltage to be measured.
- 2. intelligent electric power parameter detection device according to claim 1, it is characterised in that：Also include feedback control circuit（9）；The feedback control circuit（9）Input and the signal acquisition circuit（2）It is connected；The feedback control circuit（9）Output end and the drive circuit（3）It is connected.
- 3. intelligent electric power parameter detection device according to claim 1, it is characterised in that：Also include input through keyboard circuit（10）；The input through keyboard circuit（10）With the embedded controller（1）Command input be connected.
- 4. intelligent electric power parameter detection device according to claim 1, it is characterised in that：Also include display driver circuit（13）；The embedded controller（1）Display signal output part and the display driver circuit（13）It is connected.
- 5. intelligent electric power parameter detection device according to claim 1, it is characterised in that：Also include telecommunication circuit（11）；The telecommunication circuit（11）Output end and the embedded controller（1）Signal of communication input be connected, it is described embedding Enter formula controller（1）Signal of communication output end and the telecommunication circuit（11）Input be connected.
- 6. intelligent electric power parameter detection device according to claim 3, it is characterised in that：Also include electric power management circuit（12）；The electric power management circuit（12）With the embedded controller（1）, the drive circuit（3）, light-coupled isolation electricity Road（7）, the input through keyboard circuit（10）And the filter circuit（8）Electrically connect.
- 7. intelligent electric power parameter detection device according to claim 1, it is characterised in that：The signal acquisition circuit（2）Including test port（21）, voltage sample resistance and current sampling resistor（23）；The voltage sample resistance and the test port（21）It is arranged in parallel；The current sampling resistor（23）With the test port（21）It is arranged in series.
- 8. intelligent electric power parameter detection device according to claim 7, it is characterised in that：The voltage sample resistance includes first voltage sampling resistor（221）And second voltage sampling resistor（222）；The first voltage sampling resistor（221）With the second voltage sampling resistor（222）Series connection；Second isolating amplifier circuit（6）Input and the first voltage sampling resistor（221）, the second voltage adopts Sample resistance（222）Between wire electrical connection；The current sampling resistor（23）One end and the second voltage sampling resistor（222）One end be connected；The current sampling resistor（23）The other end and first isolating amplifier circuit（5）It is connected.
- 9. intelligent electric power parameter detection device according to claim 1, it is characterised in that：The embedded controller（1）It is configured to STC12C5620AD single-chip microcomputers；First isolating amplifier circuit（5）In the first isolated amplifier and/second isolating amplifier circuit（6）In Two isolated amplifiers are configured to HCPL788；The power circuit（4）It is configured to metal-oxide-semiconductor circuit.
- 10. intelligent electric power parameter detection device according to claim 3, it is characterised in thatThe input through keyboard circuit（10）It is configured to 4 × 4 matrix keyboards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720965431.0U CN206990774U (en) | 2017-08-02 | 2017-08-02 | A kind of intelligent electric power parameter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720965431.0U CN206990774U (en) | 2017-08-02 | 2017-08-02 | A kind of intelligent electric power parameter detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206990774U true CN206990774U (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720965431.0U Expired - Fee Related CN206990774U (en) | 2017-08-02 | 2017-08-02 | A kind of intelligent electric power parameter detection device |
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| Country | Link |
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| CN (1) | CN206990774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238807A (en) * | 2017-08-02 | 2017-10-10 | 东华理工大学 | A kind of intelligent electric power parameter detection device |
-
2017
- 2017-08-02 CN CN201720965431.0U patent/CN206990774U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238807A (en) * | 2017-08-02 | 2017-10-10 | 东华理工大学 | A kind of intelligent electric power parameter detection device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20180802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |