CN207380220U - A kind of single universal meter voltage and current benchmark sample circuit of integrative control - Google Patents
A kind of single universal meter voltage and current benchmark sample circuit of integrative control Download PDFInfo
- Publication number
- CN207380220U CN207380220U CN201721560417.9U CN201721560417U CN207380220U CN 207380220 U CN207380220 U CN 207380220U CN 201721560417 U CN201721560417 U CN 201721560417U CN 207380220 U CN207380220 U CN 207380220U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- tie point
- universal meter
- current
- 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.)
- Active
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a kind of single universal meter voltage and current benchmark sample circuits of integrative control, including master control borad circuit, several test board circuits and voltage and current reference sample circuit, master control borad circuit includes shared line, voltage tester circuit and testing current circuit；Each test board circuit includes input anode tie point, input cathode tie point, output head anode tie point, negative pole of output end tie point, sampled point anode tie point and sampled point cathode tie point, input anode tie point and output head anode tie point are connected with voltage tester circuit, input cathode tie point, negative pole of output end tie point and sampled point cathode tie point are connected with shared line, sampled point anode tie point is connected with testing current circuit, and relay is connected between master control borad circuit and test board circuit.The test of electric current and voltage reference when the utility model is for battery protecting plate managing electric quantity.
Description
Technical field
The utility model is related to lithium battery technical field of measurement and test, and in particular to a kind of single universal meter voltage of integrative control
Current reference sample circuit.
Background technology
The burning calibration verification of the managing electric quantity and current monitoring IC of lithium ion battery is required for through electric current, voltage reference
Based on, but the acquisition of present electric current, voltage reference is strong there are limitation, the problems such as being not easy later maintenance extension.
Utility model content
The technical issues of the utility model solves is to propose that a kind of equipment is simple, voltage and current benchmark sampling easy to use
Circuit.
To achieve the above object, the utility model provides a kind of single universal meter voltage and current benchmark sampling of integrative control
Circuit, including master control borad circuit, several test board circuits and voltage and current reference sample circuit, the voltage and current reference
Sample circuit is integrated in a test circuit, and the master control borad circuit includes shared line, voltage tester circuit and electric current and surveys
Try circuit；Each test board circuit includes input anode tie point, input cathode tie point, output head anode connection
Point, negative pole of output end tie point, sampled point anode tie point and sampled point cathode tie point, the input anode tie point and
Output head anode tie point is connected with voltage tester circuit, the input cathode tie point, negative pole of output end tie point and
Sampled point cathode tie point is connected with shared line, and the sampled point anode tie point is connected with testing current circuit, institute
It states and is connected with relay between master control borad circuit and test board circuit；The voltage reference sample circuit and current reference sampling electricity
Road shares a universal meter, shared connecting pin and the shared connection of the universal meter, the voltage tester end of the universal meter
With voltage tester connection, testing current end and the testing current connection of the universal meter；The universal meter and voltage
The connection of measurement circuit or the switching of testing current connection are carried out by relay.
Further, the voltage and current reference sample circuit integrate on one module.
Further, the relay is controlled by microcontroller.
Further, the universal meter is connected with computer communication, the computer control universal meter work and receive with
Store the test result that universal meter is sent.
Further, it is connected with filter circuit between the voltage and current reference sample circuit and master control borad circuit.
Further, going back master control borad circuit includes resistance sampling test circuit, and the resistance sampling test circuit is used to survey
Try the resistance value of NTC thermistor.
Further, several microcontroller strings are passed through between the voltage and current reference sample circuit and master control borad circuit
Mouth connection.
Further, the voltage and current reference sample circuit share a communication serial port with master control borad circuit.
The advantageous effect that the utility model is realized mainly has the following：Electric current and voltage reference test share a general-purpose
Table reduces the use of universal meter；By the switching of control voltage and testing current, and pass through microcontroller and control relay
Device, control are got up more convenient；Universal meter is connected with computer, is controlled by computer and to computer transmitting test data, entirely
Testing and control is more convenient, test result is easier to record.
Description of the drawings
Fig. 1 is the knot of the single universal meter voltage and current benchmark sample circuit of integrative control in the utility model embodiment one
Structure schematic diagram；
A- input anode tie points, B- input cathode tie points, C- output head anode tie points, D- negative pole of output end
Tie point, E- sampled point anode tie points, F- sampled point cathode tie points, L1- voltage tester circuits, L2- shared lines, L3-
Testing current circuit, V- voltage testers end, GND- share connecting pin, I- testing currents end.
Reference sign：
Attached drawing is only for illustration, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some components to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by attached drawing；The same or similar label corresponds to same or similar
Component；The terms describing the positional relationship in the drawings are only for illustration, it is impossible to be interpreted as the limitation to this patent.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, below in conjunction with attached drawing and embodiment to the utility model into traveling
One step is described in detail.
Embodiment one
Referring to Fig. 1, a kind of single universal meter voltage and current benchmark sample circuit of integrative control, including master control borad electricity
Road, several test board circuits and voltage and current reference sample circuit, the voltage and current reference sample circuit are integrated in one
In a test circuit, the master control borad circuit includes shared line L2, voltage tester circuit L1 and testing current circuit L3；Each institute
Stating test board circuit includes input anode tie point A, input cathode tie point B, output head anode tie point C, output terminal
Cathode tie point D, sampled point anode tie point E and sampled point cathode tie point F, the input anode tie point A and output
Rectify pole tie point C be connected with voltage tester circuit L1, the input cathode tie point B, negative pole of output end tie point D and
Sampled point cathode tie point F is connected with shared line L2, and the sampled point anode tie point E is connected with testing current circuit L3
Connect, relay be connected between the master control borad circuit and test board circuit, the relay has two-stage, as in figure K1,
K2, K3 are the first order, and K4, K5 are the second level, during use according to test need to select the part for being closed the first order and the second level or
Whole relays test the voltage of difference or electric current；The voltage reference sample circuit and current reference sample circuit share
One universal meter, the shared connecting pin GND of the universal meter are connected with shared line L2, the voltage tester end V of the universal meter
It is connected with voltage tester circuit L1, the testing current end I of the universal meter is connected with testing current circuit L3；The universal meter with
The connection of voltage tester circuit or the switching of testing current connection are carried out by relay.
The voltage and current reference sample circuit integrate on one module, so entire test electric current is more stable can
It leans on.Foregoing relay is controlled by microcontroller and switched, thereby using when control it is very convenient.The universal meter leads to computer
News connection, the computer control universal meter work and receive and store the test result of universal meter transmission, calculated so as to pass through
Machine controls entire test process, and draws the voltage of test, current data.The voltage and current reference sample circuit and master control
Filter circuit is connected between plate circuit, the voltage, current data so as to test are more accurate.Also master control borad circuit is adopted including resistance
Sample test circuit, the resistance sampling test circuit are used to test the resistance value of NTC thermistor, so as to pass through temperature-sensitive electricity
The resistance value of resistance converses current environment temperature.The communication baud rate 57600bit/s of the computer and master control borad, the electricity
It is connected between pressure and current reference sample circuit and master control borad circuit by several microcontroller serial ports, so as to quickly drive
Switching control universal meter is connected, universal meter is allowed to connect rapidly and turns on some test circuit,.The voltage and current reference sampling
Circuit shares a communication serial port with master control borad circuit, so as to reduce extended serial port, mitigates the operating load of computer.
Referring to Fig. 1, the test circuit of the utility model is for the managing electric quantity of battery protecting plate and current monitoring IC
When voltage, current sample, the input anode B+ of battery protection panel products, negative pole of output end B-, output terminal P+, output terminal are born
Pole P-, intend sampled point anode I+ and intend sampled point cathode I- respectively with input anode tie point A, input cathode tie point B,
Output head anode tie point C, negative pole of output end tie point D, sampled point anode tie point E are connected with sampled point cathode tie point F,
Then disconnection and the closure of different relays are controlled by microcontroller to select to test the voltage and current of different circuits, passes through meter
Calculation machine controls and the data of read test, draws reference voltage and current value.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the utility model etc., should be included in
Within the protection domain of the utility model claims.
Claims (8)
1. a kind of single universal meter voltage and current benchmark sample circuit of integrative control, it is characterised in that：Including master control borad circuit,
Several test board circuits and voltage and current reference sample circuit, the voltage and current reference sample circuit are integrated in a survey
It tries on circuit, the master control borad circuit includes shared line（L2）, voltage tester circuit（L1）With testing current circuit（L3）；Respectively
The test board circuit includes input anode tie point（A）, input cathode tie point（B）, output head anode tie point
（C）, negative pole of output end tie point（D）, sampled point anode tie point（E）With sampled point cathode tie point（F）, it is described input rectify
Pole tie point（A）With output head anode tie point（C）With voltage tester circuit（L1）It is connected, the input cathode tie point
（B）, negative pole of output end tie point（D）With sampled point cathode tie point（F）With shared line（L2）It is connected, the sampled point is just
Pole tie point（E）With testing current circuit（L3）It is connected, relay is connected between the master control borad circuit and test board circuit
Device；The voltage reference sample circuit and current reference sample circuit share a universal meter, the shared connection of the universal meter
End（GND）With shared line（L2）Connection, the voltage tester end of the universal meter（V）With voltage tester circuit（L1）Connection, institute
State the testing current end of universal meter（I）With testing current circuit（L3）Connection；The connection of the universal meter and voltage tester circuit
Or the switching of testing current connection is carried out by relay.
2. the single universal meter voltage and current benchmark sample circuit of integrative control according to claim 1, it is characterised in that：
The voltage and current reference sample circuit integrate on one module.
3. the single universal meter voltage and current benchmark sample circuit of integrative control according to claim 2, it is characterised in that：
The relay is controlled by microcontroller.
4. the single universal meter voltage and current benchmark sample circuit of integrative control according to claim 1, it is characterised in that：
The universal meter is connected with computer communication, and the computer controls universal meter to work and receives and store the survey of universal meter transmission
Test result.
5. the single universal meter voltage and current benchmark sample circuit of integrative control according to claim 1, it is characterised in that：
Filter circuit is connected between the voltage and current reference sample circuit and master control borad circuit.
6. the single universal meter voltage and current benchmark sample circuit of integrative control according to claim 1, it is characterised in that：
Also master control borad circuit includes resistance sampling test circuit, and the resistance sampling test circuit is used to test the resistance of NTC thermistor
Value.
7. according to the single universal meter voltage and current benchmark sample circuit of claim 1 ~ 6 any one of them integrative control,
It is characterized in that：It is connected between the voltage and current reference sample circuit and master control borad circuit by several microcontroller serial ports.
8. the single universal meter voltage and current benchmark sample circuit of integrative control according to claim 7, it is characterised in that：
The voltage and current reference sample circuit share a communication serial port with master control borad circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721560417.9U CN207380220U (en) | 2017-11-21 | 2017-11-21 | A kind of single universal meter voltage and current benchmark sample circuit of integrative control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721560417.9U CN207380220U (en) | 2017-11-21 | 2017-11-21 | A kind of single universal meter voltage and current benchmark sample circuit of integrative control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207380220U true CN207380220U (en) | 2018-05-18 |
Family
ID=62332857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721560417.9U Active CN207380220U (en) | 2017-11-21 | 2017-11-21 | A kind of single universal meter voltage and current benchmark sample circuit of integrative control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207380220U (en) |
-
2017
- 2017-11-21 CN CN201721560417.9U patent/CN207380220U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104849649B (en) | A kind of detection method of current transformer for metering secondary circuit state | |
| CN204156226U (en) | A kind of smart jack | |
| CN103941079B (en) | Power distribution network PT on-line monitoring and fault diagnosis system | |
| CN103412168B (en) | A kind of high-precision current sampling circuit of intelligent electric meter | |
| CN207067227U (en) | Sample circuit and current measurement circuit | |
| CN205229445U (en) | Electric energy meter RS485 communication interface comprehensive properties test module | |
| CN107870283A (en) | BMS wiring testing devices and method | |
| CN205665317U (en) | Cable is to ground parameter testing appearance | |
| CN205049678U (en) | Short circuit testing arrangement is opened to camera module | |
| CN207817124U (en) | A kind of electric connector leakage current and insulation resistance measuring device | |
| CN207380220U (en) | A kind of single universal meter voltage and current benchmark sample circuit of integrative control | |
| CN204389637U (en) | Electric high-voltage direct-current insulation detection circuit | |
| CN206557547U (en) | Relay actuation time test circuit | |
| CN203811642U (en) | Demagnetization oscilloprobe | |
| CN205451507U (en) | Semaphore | |
| CN212159933U (en) | Ammeter based on RS485 data routing sharing | |
| CN204177906U (en) | Polarity tester | |
| CN203561676U (en) | Leakage current tester | |
| CN202929178U (en) | Battery measuring plate of intelligent control device | |
| CN209088518U (en) | A kind of hardware Over Current Protection System for bidirectional current output | |
| CN202177657U (en) | Digital electrical parameter measuring instrument | |
| CN208636416U (en) | A kind of CVT secondary voltage analytical equipment based on electronic type transmitter | |
| CN105337110A (en) | Intelligent socket | |
| CN204631186U (en) | A kind of phase three-wire three supply line decompression calculagraph | |
| CN221056573U (en) | Acquisition test circuit and detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |