CN104614686B - A kind of electronic load tester with power meter function - Google Patents
A kind of electronic load tester with power meter function Download PDFInfo
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- CN104614686B CN104614686B CN201510039417.3A CN201510039417A CN104614686B CN 104614686 B CN104614686 B CN 104614686B CN 201510039417 A CN201510039417 A CN 201510039417A CN 104614686 B CN104614686 B CN 104614686B
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- electronic load
- power meter
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Abstract
The present invention proposes a kind of electronic load tester with power meter function, including power meter module and electronic load module, the power meter module is communicated with the electronic load module by serial ports, the exchange input parameter of tested power supply is input to the power meter module and tested, and the direct current output parameter of the tested power supply is input to the electronic load module and tested.Implement the electronic load tester with power meter function of the present invention, have the advantages that：System development difficulty is reduced, cost is reduced, improves the stability of a system.
Description
Technical field
The present invention relates to power supply test field, more particularly to a kind of electronic load tester with power meter function.
Background technology
The test of power supply product is divided into the test of exchange discrepancy parameter and direct current output parameter, and exchange input parameter needs to use
Power meter (electrical parameter measuring instrument) is tested, and direct current output parameter needs to be tested with DC Electronic Loads.In existing automatic survey
In test system, due to can not independently be communicated between two equipment of power meter and DC Electronic Loads, also can not conversation test data,
Therefore need the data of two equipment uploading to computer, then special exploitation upper computer software the data of test are managed and
Analysis.This causes system development difficulty to increase, and cost is too high, and the stability of system declines.
The content of the invention
The technical problem to be solved in the present invention is, for prior art said system development difficulty is larger, cost compared with
There is provided a kind of tool for reducing system development difficulty, reducing cost, improving the stability of a system for the not high defect of the high, stability of a system
There is the electronic load tester of power meter function.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Electronic Negative with power meter function of construction
Tester, including power meter module and electronic load module are carried, the power meter module passes through string with the electronic load module
Mouth is communicated, and the exchange input parameter of tested power supply is input to the power meter module and tested, the tested electricity
The direct current output parameter in source is input to the electronic load module and tested.
In the electronic load tester of the present invention with power meter function, the power meter module includes voltage
Acquisition Circuit, current collection circuit and operation processing unit, live wire and the zero line connection of the voltage collection circuit and alternating current,
Voltage for gathering the alternating current, the current collection circuit respectively with the live wire of the alternating current and tested power supply
Input connection, the electric current for gathering the alternating current, the operation processing unit respectively with the voltage collection circuit and
Current collection circuit connection, the voltage and current for receiving the alternating current simultaneously carry out after computing operation result passing through institute
State serial ports and be sent to the electronic load module.
In the electronic load tester of the present invention with power meter function, the electronic load module includes electricity
Son load, which is drawn, carries circuit, voltage x current Acquisition Circuit and microprocessor, and the electronic load, which is drawn, carries circuit and the tested electricity
The output end connection in source, the direct current output parameter for receiving the tested power supply, the voltage x current Acquisition Circuit and institute
State electronic load and draw the connection of load circuit, the output voltage for gathering the tested power supply and output current, the microprocessor
Device is connected with the operation processing unit and voltage x current Acquisition Circuit, for receiving the operation result and the quilt respectively
Test the output voltage and output current of power supply and handled.
In the electronic load tester of the present invention with power meter function, the electronic load module also includes
User interface, the user interface is connected with the microprocessor, the result for showing the microprocessor.
In the electronic load tester of the present invention with power meter function, the input of the tested power supply
Zero line also with the alternating current is connected.
In the electronic load tester of the present invention with power meter function, the microprocessor and the computing
Processing unit is communicated by the serial ports.
In the electronic load tester of the present invention with power meter function, the microprocessor also with the electricity
Son load, which is drawn, carries circuit connection.
Implement the electronic load tester with power meter function of the present invention, have the advantages that:Due to power
Meter module is communicated with electronic load module by serial ports, and module is used equivalent to by power meter module and electronic load module
Change and one set of instrument is combined into after design, separate unit instrument is that the defeated exchange input parameter and direct current output to being tested power supply can be achieved
The test of parameter, so it can reduce system development difficulty, reduce cost, improves the stability of a system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation in the electronic load tester one embodiment of the present invention with power meter function.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In electronic load tester embodiment of the present invention with power meter function, it has the electronics of power meter function
The structural representation of loading tester is as shown in Figure 1.In Fig. 1, the electronic load tester should with power meter function includes work(
Rate meter module 1 and electronic load module 2, power meter module 1 are communicated with electronic load module 2 by serial ports, are tested electricity
The exchange input parameter in source is input to power meter module 1 and tested, and the direct current output parameter of tested power supply is input to electronics
Load blocks 2 are tested.Due to power meter module 1 and electronic load module 2 is a set of using being combined into after modularized design
Instrument, separate unit instrument is the test that exchange input parameter and direct current output parameter to being tested power supply can be achieved, that is, by
The exchange input parameter and direct current output parameter of power supply are tested inside the electronic load tester that this has power meter function
Automatically process, full-automatic testing can be achieved in the participation that can cancel computer and host computer completely, is opened so it can reduce system
Degree of raising difficult questions, reduce cost, improve the stability of a system.Although it is noted that having drawn tested power supply out in Fig. 1, being
The test annexation of tested power supply, but the electronics with power meter function in the present embodiment are intuitive to see for convenience
Loading tester does not include tested power supply.
In the present embodiment, above-mentioned power meter module 1 includes voltage collection circuit 11, current collection circuit 12 and calculation process
Unit 13, voltage collection circuit 11 is connected with the live wire L and zero line N of alternating current, the voltage for gathering alternating current, current acquisition
Circuit 12 is connected with the live wire L of alternating current and the input of tested power supply respectively, the electric current for gathering alternating current, at computing
Reason unit 13 be connected respectively with voltage collection circuit 11 and current collection circuit 12, the voltage and current for receiving alternating current,
And carry out after computing operation result being sent to electronic load module 2 by serial ports.The input of tested power supply is also with exchanging
The zero line N connections of electricity.
In the present embodiment, electronic load module 2, which includes electronic load, draws and carries circuit 21, voltage x current Acquisition Circuit 22 and micro-
Processor 23, electronic load draws load circuit 21 to be connected with the output end of tested power supply, the direct current for receiving tested power supply
Output parameter, voltage x current Acquisition Circuit draws load circuit 21 to be connected with electronic load, the output electricity for gathering tested power supply
Pressure and output current, microprocessor 23 are connected, for receiving with operation processing unit 13 and voltage x current Acquisition Circuit 22 respectively
The operation result of above-mentioned operation processing unit 13 and the output voltage and output current of tested power supply are simultaneously handled.
In the present embodiment, electronic load module 2 also includes user interface 24, user interface 24 is connected with microprocessor 23,
Result for showing microprocessor.Microprocessor 23 is communicated with operation processing unit 13 by serial ports.Microprocessor
Device 23 also draws load circuit 21 to be connected with electronic load.
In the present embodiment, specifically, the live wire L and zero line N of alternating current are input to this and have the Electronic Negative of power meter function
Tester is carried, there is the power meter module 1 inside the electronic load tester of power meter function to live wire L and zero line N by this
Voltage and current collection after be output to tested power supply.The output end of tested power supply, which is linked into this, has power meter function
The importation of electronic load tester, controls electronic load to draw and carries the defeated of 21 pairs of tested power supplys of circuit by microprocessor 23
Go out to carry out drawing load.
Live wire L and zero line N send signal (voltage and current) after voltage collection circuit 11 and current collection circuit 12
Enter to operation processing unit 13, to AC-input voltage, electric current, active power, reactive power, apparent energy and power factor (PF) etc.
Electrical parameter is calculated, and result of calculation finally is sent into microprocessor 23 by serial communication.Electronic load module 2 will be tested
The parameters such as output voltage, output current, ripple voltage and the ripple current of power supply are tried, are gathered by voltage x current Acquisition Circuit 22
After be sent to microprocessor 23 and handled, while microprocessor 23 is by the exchange input parameter and direct current output of tested power supply
Parameter carries out computing, can calculate the efficiency of tested power supply, and synthetic determination is tested the actual test parameter of power supply with setting
Put whether parameter meets the requirements, and result of determination is shown by user interface 24.
In a word, in the present embodiment, power meter module 1 is communicated with electronic load module 2 by serial ports, also just quite
In by by 2 two kinds of function instruments of power meter module 1 and electronic load module use modularized design after be combined into one set of instrument,
Become the electronic load tester with power meter function.The separate unit instrument is that can be achieved to exchange power supply product to input
The test of parameter and direct current output parameter, the cost of user can be greatly reduced in it, improve the stability of a system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (7)
1. a kind of electronic load tester with power meter function, it is characterised in that including power meter module and electronic load
Module, the power meter module is communicated with the electronic load module by serial ports, is tested the exchange input ginseng of power supply
Number is input to the power meter module and tested, and the direct current output parameter of the tested power supply is input to the electronic load
Module is tested.
2. the electronic load tester according to claim 1 with power meter function, it is characterised in that the power meter
Module includes voltage collection circuit, current collection circuit and operation processing unit, the fire of the voltage collection circuit and alternating current
Line and zero line connection, the voltage for gathering the alternating current, the live wire of the current collection circuit respectively with the alternating current
With the connection of the input of tested power supply, the electric current for gathering the alternating current, the operation processing unit respectively with it is described
Voltage collection circuit and current collection circuit connection, the voltage and current for receiving the alternating current and carry out after computing will
Operation result is sent to the electronic load module by the serial ports.
3. the electronic load tester according to claim 2 with power meter function, it is characterised in that the Electronic Negative
Carrying module includes electronic load and draws to carry circuit, voltage x current Acquisition Circuit and microprocessor, the electronic load draw carry circuit with
The output end connection of the tested power supply, the direct current output parameter for receiving the tested power supply, the voltage x current
Acquisition Circuit draws load circuit to be connected with the electronic load, the output voltage for gathering the tested power supply and output are electric
Stream, the microprocessor is connected with the operation processing unit and voltage x current Acquisition Circuit, for receiving the computing respectively
As a result and the tested power supply output voltage and output current and handled.
4. the electronic load tester according to claim 3 with power meter function, it is characterised in that the Electronic Negative
Carrying module also includes user interface, and the user interface is connected with the microprocessor, the place for showing the microprocessor
Manage result.
5. the electronic load tester according to claim 4 with power meter function, it is characterised in that described tested
Zero line of the input of power supply also with the alternating current is connected.
6. the electronic load tester according to claim 5 with power meter function, it is characterised in that the microprocessor
Device is communicated with the operation processing unit by the serial ports.
7. the electronic load tester according to claim 3 with power meter function, it is characterised in that the microprocessor
Device also draws load circuit to be connected with the electronic load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039417.3A CN104614686B (en) | 2015-01-26 | 2015-01-26 | A kind of electronic load tester with power meter function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039417.3A CN104614686B (en) | 2015-01-26 | 2015-01-26 | A kind of electronic load tester with power meter function |
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| Publication Number | Publication Date |
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| CN104614686A CN104614686A (en) | 2015-05-13 |
| CN104614686B true CN104614686B (en) | 2017-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510039417.3A Active CN104614686B (en) | 2015-01-26 | 2015-01-26 | A kind of electronic load tester with power meter function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044825B (en) * | 2019-12-28 | 2022-05-17 | 广东盈科电子有限公司 | Tester for testing 220V load and direct-current voltage |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09198149A (en) * | 1996-01-17 | 1997-07-31 | Tsuken Denki Kogyo Kk | Electronic loading device |
| US20040201393A1 (en) * | 2003-04-09 | 2004-10-14 | Keisoku Giken Co., Ltd. | Electronic load apparatus |
| CN201373911Y (en) * | 2009-02-23 | 2009-12-30 | 深圳市联欣科技有限公司 | Integrated test system for switch power source |
| CN102478638A (en) * | 2010-11-27 | 2012-05-30 | 西安博昱新能源有限公司 | Comprehensive LED streetlamp power source testing system |
| CN102486532A (en) * | 2010-12-01 | 2012-06-06 | 西安大昱光电科技有限公司 | LED (light-emitting diode) power source analysis and test system |
| CN201955457U (en) * | 2010-12-09 | 2011-08-31 | 西安中科麦特电子技术设备有限公司 | Novel LED switching power supply test system |
| CN204405814U (en) * | 2015-01-26 | 2015-06-17 | 深圳市中科源电子有限公司 | A kind of electronic load tester with power meter function |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electronic load tester with functions of dynamometer Effective date of registration: 20200703 Granted publication date: 20170818 Pledgee: Shenzhen SME financing Company limited by guarantee Pledgor: SHENZHEN ZHONGKEYUAN ELECTRONICS Co.,Ltd. Registration number: Y2020990000707 |
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Date of cancellation: 20210719 Granted publication date: 20170818 Pledgee: Shenzhen SME financing Company limited by guarantee Pledgor: SHENZHEN ZHONGKEYUAN ELECTRONICS Co.,Ltd. Registration number: Y2020990000707 |
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