CN207946506U - A kind of module for testing electronic load - Google Patents
A kind of module for testing electronic load Download PDFInfo
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- CN207946506U CN207946506U CN201820062433.3U CN201820062433U CN207946506U CN 207946506 U CN207946506 U CN 207946506U CN 201820062433 U CN201820062433 U CN 201820062433U CN 207946506 U CN207946506 U CN 207946506U
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- microcontroller
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- monitoring unit
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000005669 field effect Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000013021 overheating Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model is related to a kind of module for testing electronic load, including input interface, the input interface is connected with three current loops, and three current loops are connected with microcontroller, and the microcontroller is connected with the communication interface of host computer.The load of the utility model modular electronic has many advantages, such as that the operation is stable, small, power is big, is easy to use; it is provided simultaneously with perfect overcurrent protection, overvoltage protection, overheating protection function; have high-precision measurement monitoring unit, is very suitable for industrial automation test occasion.
Description
Technical field
The utility model is related to electronic technology field more particularly to a kind of module for testing electronic loads.
Background technology
Electronic load is the equipment that can simulate the load in true environment, it generally has constant current, constant-resistance, constant pressure and perseverance
The functions such as power, occasion generally stringenter to power requirement can all detect the quality of power supply, Electronic Negative with electronic load
It is loaded in electronic development, test sector application is extensive, it there are many functions, can adjust load, and short circuit, and overcurrent is moved
There are many function of state etc., electronic load, and the electronic load type divided by different function is also very much, and power source loads are tested at present
Test system generally is constituted using ammeter, voltmeter, electrical load devices, such system is although multiple functional, still
Bulky expensive, it was noted that often under some test scene, it is therein that we only can use these equipment
One or two function, multiple functional electrical load devices bulky, functional redundancy for test industry.
Utility model content
The purpose of the utility model is to overcome problem above of the existing technology, provide a kind of module for testingization electricity
Son load has many advantages, such as that the operation is stable, small, power is big, is easy to use.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：
A kind of module for testing electronic load, including input interface, the input interface are connected with three current loops,
Three current loops are connected with microcontroller, and the microcontroller is connected with the communication interface of host computer.
Further, three current loops include that the big current loop being in parallel, middle current loop and low current return
Road, every current loop include the measure voltage ＆ current monitoring unit being connected with input interface, the measure voltage ＆ current
Monitoring unit one end is connected with microcontroller, and the other end of measure voltage ＆ current monitoring unit is connected with controllable load, it is described can
Control load is connected with amplifier and constitutes closed control circuit between amplifier, and the amplifier is connected with digital analog converter, the number
Mode converter is connected with microcontroller.
Further, the measure voltage ＆ current monitoring unit is made of high-precision adc.
Further, the controllable load is field-effect tube.
Further, the micro controller is embedded micro controller.
The utility model has the beneficial effects that：The load of the utility model modular electronic is with the operation is stable, small, work(
The advantages that rate is big, easy to use, is provided simultaneously with perfect overcurrent protection, overvoltage protection, overheating protection function, has high-precision
Monitoring unit is measured, industrial automation test occasion is very suitable for.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the modular electronic load principle structure diagram of the utility model.
Specific implementation mode
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in detail.
As shown in Figure 1, the present embodiment provides a kind of module for testing electronic load, including input interface, input interface
It is connected with three current loops, three current loops are connected with microcontroller, and microcontroller is connected with the communication interface of host computer.
Three current loops include the big current loop being in parallel, middle current loop and low current circuit, every current loop include with
The connected measure voltage ＆ current monitoring unit of input interface, measure voltage ＆ current monitoring unit one end are connected with microcontroller, electricity
The other end of current voltage detection monitoring unit is connected with controllable load, and controllable load, which is connected with amplifier and is constituted between amplifier, to be closed
Loop control circuit, amplifier are connected with digital analog converter, and digital analog converter is connected with microcontroller.
Measure voltage ＆ current monitoring unit is made of high-precision adc.Controllable load is field-effect tube.Micro controller
For embedded micro controller.
Electronic load is using embedded microcontroller as master control, the operation of load management electronic load and collection voltages electric current
Monitoring unit data, and communicated with host computer, it is easy to implement automatic test；Using large, medium and small three road load circuit, same
Under the conditions of the analog-digital converter of sample precision, realization is more accurately controlled and measures, and amplifier and field-effect tube constitute closed-loop control,
Make load regulation more immediate stability, dynamic property is more preferable, and monitoring unit is made of high-precision adc, can monitor the electricity of power supply
The parameters such as current voltage, can be by changing gate pole electricity using the on state characteristic of field-effect tube without additionally configuring volometer
Pressure changes its equivalent resistance, and simulation different size load loads, voltage control characteristic, than three compared to traditional triode
Pole pipe current control mode is easier to control, and the ptc characteristics of field-effect tube also have better protectiveness than triode
Energy.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.
Claims (4)
1. a kind of module for testing electronic load, it is characterised in that：Including input interface, the input interface and three electric currents
Circuit is connected, and three current loops are connected with microcontroller, and the microcontroller is connected with the communication interface of host computer, institute
It includes the big current loop being in parallel, middle current loop and low current circuit, every current loop to state three current loops
Include the measure voltage ＆ current monitoring unit being connected with input interface, measure voltage ＆ current monitoring unit one end and microcontroller
Device be connected, the other end of measure voltage ＆ current monitoring unit is connected with controllable load, the controllable load be connected with amplifier and with
Closed control circuit is constituted between amplifier, the amplifier is connected with digital analog converter, the digital analog converter and microcontroller phase
Even.
2. a kind of module for testing electronic load according to claim 1, it is characterised in that：The measure voltage ＆ current
Monitoring unit is made of high-precision adc.
3. a kind of module for testing electronic load according to claim 1, it is characterised in that：The controllable load is field
Effect pipe.
4. a kind of module for testing electronic load according to claim 1, it is characterised in that：The micro controller is insertion
Formula micro controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820062433.3U CN207946506U (en) | 2018-01-15 | 2018-01-15 | A kind of module for testing electronic load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820062433.3U CN207946506U (en) | 2018-01-15 | 2018-01-15 | A kind of module for testing electronic load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207946506U true CN207946506U (en) | 2018-10-09 |
Family
ID=63701842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820062433.3U Active CN207946506U (en) | 2018-01-15 | 2018-01-15 | A kind of module for testing electronic load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207946506U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856489A (en) * | 2019-03-22 | 2019-06-07 | 中南大学 | A kind of load simulation device and the method for testing DC power-supply system performance |
| CN109917306A (en) * | 2019-03-13 | 2019-06-21 | 中国电子科技集团公司第二十四研究所 | It is a kind of for testing the device of power supply product adjustment end function |
| CN112285453A (en) * | 2020-09-11 | 2021-01-29 | 国网天津市电力公司 | Low-voltage user load identification test system and test method thereof |
| TWI770740B (en) * | 2020-12-28 | 2022-07-11 | 致茂電子股份有限公司 | Electronic load apparatus |
-
2018
- 2018-01-15 CN CN201820062433.3U patent/CN207946506U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917306A (en) * | 2019-03-13 | 2019-06-21 | 中国电子科技集团公司第二十四研究所 | It is a kind of for testing the device of power supply product adjustment end function |
| CN109917306B (en) * | 2019-03-13 | 2021-10-26 | 中国电子科技集团公司第二十四研究所 | Device for testing function of adjusting end of power supply product |
| CN109856489A (en) * | 2019-03-22 | 2019-06-07 | 中南大学 | A kind of load simulation device and the method for testing DC power-supply system performance |
| CN109856489B (en) * | 2019-03-22 | 2021-05-25 | 中南大学 | Load simulation device and method for testing performance of direct current power supply system |
| CN112285453A (en) * | 2020-09-11 | 2021-01-29 | 国网天津市电力公司 | Low-voltage user load identification test system and test method thereof |
| TWI770740B (en) * | 2020-12-28 | 2022-07-11 | 致茂電子股份有限公司 | Electronic load apparatus |
| US11714139B2 (en) | 2020-12-28 | 2023-08-01 | Chroma Ate Inc. | Electronic load apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Modularization electronic load is used in test Effective date of registration: 20200426 Granted publication date: 20181009 Pledgee: Industrial Commercial Bank of China Ltd. Zhongshan branch Pledgor: ZHONGSHAN BOCEDA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020440000097 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20181009 Pledgee: Industrial Commercial Bank of China Ltd. Zhongshan branch Pledgor: ZHONGSHAN BOCEDA ELECTRONIC TECHNOLOGY CO.,LTD. Registration number: Y2020440000097 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |