CN104614686A - Electronic load tester with functions of dynamometer - Google Patents

Electronic load tester with functions of dynamometer Download PDF

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Publication number
CN104614686A
CN104614686A CN201510039417.3A CN201510039417A CN104614686A CN 104614686 A CN104614686 A CN 104614686A CN 201510039417 A CN201510039417 A CN 201510039417A CN 104614686 A CN104614686 A CN 104614686A
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China
Prior art keywords
electronic load
module
power meter
current
power supply
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CN201510039417.3A
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Chinese (zh)
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CN104614686B (en
Inventor
张军
吴涛
黄明雄
石利军
庞成
庞国环
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SHENZHEN ZHONGKEYUAN ELECTRONICS CO Ltd
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SHENZHEN ZHONGKEYUAN ELECTRONICS CO Ltd
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Publication of CN104614686A publication Critical patent/CN104614686A/en
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Abstract

The invention provides an electronic load tester with functions of a dynamometer; the electronic load tester comprises a dynamometer module and an electronic load module; the dynamometer module communicates with the electronic load module via serial ports; the AC input parameter of a tested power supply is input to the dynamometer module for testing and the DC output parameter thereof is input to the electronic load module for testing. The electronic load tester with the functions of the dynamometer has the following beneficial effects of being reduced in developing difficulty of the system, reduced in cost and improved in system stability.

Description

A kind of electronic load tester with power meter function
Technical field
The present invention relates to power supply test field, particularly a kind of electronic load tester with power meter function.
Background technology
The test of power supply product is divided into the test exchanging come in and go out parameter and direct current output parameter, and exchanging input parameter needs with power meter (electrical parameter measuring instrument) test, and direct current output parameter needs to test with DC Electronic Loads.In existing Auto-Test System, due to cannot independently communication between power meter and DC Electronic Loads two equipment, also cannot conversation test data, therefore need by the data upload of two equipment to computer, then develop the data of upper computer software to test specially and manage and analyze.This causes system development difficulty to increase, high cost, and the stability of system declines.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that said system development difficulty is comparatively large, cost is higher, system stability is not high of prior art, provide a kind of and reduce system development difficulty, reduce costs, improve the electronic load tester with power meter function of system stability.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of electronic load tester with power meter function, comprise power meter module and electronic load module, described power meter module and described electronic load module carry out communication by serial ports, the interchange input parameter of tested power supply is input to described power meter module and tests, and the direct current output parameter of described tested power supply is input to described electronic load module and tests.
Have in the electronic load tester of power meter function of the present invention, described power meter module comprises voltage collection circuit, current collection circuit and operation processing unit, live wire and the zero line of described voltage collection circuit and alternating current are connected, for gathering the voltage of described alternating current, described current collection circuit is connected with the live wire of described alternating current and the input end of tested power supply respectively, for gathering the electric current of described alternating current, described operation processing unit is connected with described voltage collection circuit and current collection circuit respectively, for receiving the voltage and current of described alternating current, go forward side by side after row operation and operation result is sent to described electronic load module by described serial ports.
Have in the electronic load tester of power meter function of the present invention, described electronic load module comprises electronic load and draws live road, electric current and voltage Acquisition Circuit and microprocessor, described electronic load draws live road to be connected with the output terminal of described tested power supply, for receiving the direct current output parameter of described tested power supply, described electric current and voltage Acquisition Circuit and described electronic load draw live road to be connected, for gathering output voltage and the output current of described tested power supply, described microprocessor is connected with described operation processing unit and electric current and voltage Acquisition Circuit respectively, output voltage and output current for receiving described operation result and described tested power supply are gone forward side by side row relax.
Have in the electronic load tester of power meter function of the present invention, described electronic load module also comprises user interface, and described user interface is connected with described microprocessor, for showing the result of described microprocessor.
Have in the electronic load tester of power meter function of the present invention, the input end of described tested power supply is also connected with the zero line of described alternating current.
Have in the electronic load tester of power meter function of the present invention, described microprocessor and described operation processing unit carry out communication by described serial ports.
Have in the electronic load tester of power meter function of the present invention, described microprocessor also draws live road to be connected with described electronic load.
Implement the electronic load tester with power meter function of the present invention, there is following beneficial effect: because power meter module and electronic load module carry out communication by serial ports, one set of instrument is combined into after being equivalent to that power meter module and electronic load module are adopted modular design, separate unit instrument can realize the test of defeated interchange input parameter to tested power supply and direct current output parameter, so it can reduce system development difficulty, reduces costs, improve system stability.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that the present invention has in electronic load tester embodiment of power meter function.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Have in the electronic load tester embodiment of power meter function in the present invention, it has the structural representation of the electronic load tester of power meter function as shown in Figure 1.In Fig. 1, this electronic load tester with power meter function comprises power meter module 1 and electronic load module 2, power meter module 1 and electronic load module 2 carry out communication by serial ports, the interchange input parameter of tested power supply is input to power meter module 1 and tests, and the direct current output parameter of tested power supply is input to electronic load module 2 and tests.One set of instrument is combined into after power meter module 1 and electronic load module 2 are adopted modular design, separate unit instrument can realize the test of interchange input parameter to tested power supply and direct current output parameter, namely the interchange input parameter of tested power supply and direct current output parameter are all in the inner process automatically of the electronic load tester originally with power meter function, the participation can cancelling computer and host computer completely can realize full-automatic testing, so it can reduce system development difficulty, reduces costs, improve system stability.It is worth mentioning that, although drawn by tested power supply out in Fig. 1, be the test annexation conveniently intuitively arriving tested power supply, the electronic load tester with power meter function in the present embodiment does not comprise tested power supply.
In the present embodiment, above-mentioned power meter module 1 comprises voltage collection circuit 11, current collection circuit 12 and operation processing unit 13, live wire L and the zero line N of voltage collection circuit 11 and alternating current are connected, for gathering the voltage of alternating current, current collection circuit 12 is connected with the live wire L of alternating current and the input end of tested power supply respectively, for gathering the electric current of alternating current, operation processing unit 13 is connected with voltage collection circuit 11 and current collection circuit 12 respectively, for receiving the voltage and current of alternating current, go forward side by side after row operation and operation result is sent to electronic load module 2 by serial ports.The input end of tested power supply is also connected with the zero line N of alternating current.
In the present embodiment, electronic load module 2 comprises electronic load and draws live road 21, electric current and voltage Acquisition Circuit 22 and microprocessor 23, electronic load draws live road 21 to be connected with the output terminal of tested power supply, for receiving the direct current output parameter of tested power supply, electric current and voltage Acquisition Circuit and electronic load draw live road 21 to be connected, for gathering output voltage and the output current of tested power supply, microprocessor 23 is connected with operation processing unit 13 and electric current and voltage Acquisition Circuit 22 respectively, to go forward side by side row relax for the output voltage of the operation result and tested power supply that receive above-mentioned operation processing unit 13 and output current.
In the present embodiment, electronic load module 2 also comprises user interface 24, and user interface 24 is connected with microprocessor 23, for showing the result of microprocessor.Microprocessor 23 and operation processing unit 13 carry out communication by serial ports.Microprocessor 23 also draws live road 21 to be connected with electronic load.
In the present embodiment, concrete, the live wire L of alternating current and zero line N is input to the electronic load tester that this has power meter function, outputs to tested power supply after having the voltage and current collection of power meter module 1 couple of live wire L and zero line N of the electronic load tester inside of power meter function by this.The output terminal of tested power supply is linked into the importation that this has the electronic load tester of power meter function, by microprocessor 23 control electronic load draw the output of live road 21 to tested power supply draw carry.
Signal (voltage and current) is sent to operation processing unit 13 by live wire L and zero line N after voltage collection circuit 11 and current collection circuit 12, the electrical quantitys such as AC-input voltage, electric current, active power, reactive power, applied power and power factor (PF) are calculated, finally result of calculation is sent to microprocessor 23 by serial communication.Electronic load module 2 is by parameters such as the output voltage of tested power supply, output current, ripple voltage and ripple currents, be sent to microprocessor 23 after being gathered by electric current and voltage Acquisition Circuit 22 to process, the interchange input parameter of tested power supply and direct current output parameter are carried out computing by microprocessor 23 simultaneously, the efficiency of tested power supply can be calculated, and whether the actual test parameter of the tested power supply of synthetic determination and parameters meet the requirements, and result of determination is shown by user interface 24.
In a word, in the present embodiment, power meter module 1 and electronic load module 2 carry out communication by serial ports, also be just equivalent to be combined into one set of instrument after power meter module 1 and electronic load module 2 two kinds of function instruments are adopted modular design, become the electronic load tester with power meter function.This separate unit instrument can realize test power supply product being exchanged to input parameter and direct current output parameter, and it significantly can reduce the cost of user, improves system stability.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. one kind has the electronic load tester of power meter function, it is characterized in that, comprise power meter module and electronic load module, described power meter module and described electronic load module carry out communication by serial ports, the interchange input parameter of tested power supply is input to described power meter module and tests, and the direct current output parameter of described tested power supply is input to described electronic load module and tests.
2. the electronic load tester with power meter function according to claim 1, it is characterized in that, described power meter module comprises voltage collection circuit, current collection circuit and operation processing unit, live wire and the zero line of described voltage collection circuit and alternating current are connected, for gathering the voltage of described alternating current, described current collection circuit is connected with the live wire of described alternating current and the input end of tested power supply respectively, for gathering the electric current of described alternating current, described operation processing unit is connected with described voltage collection circuit and current collection circuit respectively, for receiving the voltage and current of described alternating current, go forward side by side after row operation and operation result is sent to described electronic load module by described serial ports.
3. the electronic load tester with power meter function according to claim 2, it is characterized in that, described electronic load module comprises electronic load and draws live road, electric current and voltage Acquisition Circuit and microprocessor, described electronic load draws live road to be connected with the output terminal of described tested power supply, for receiving the direct current output parameter of described tested power supply, described electric current and voltage Acquisition Circuit and described electronic load draw live road to be connected, for gathering output voltage and the output current of described tested power supply, described microprocessor is connected with described operation processing unit and electric current and voltage Acquisition Circuit respectively, output voltage and output current for receiving described operation result and described tested power supply are gone forward side by side row relax.
4. the electronic load tester with power meter function according to claim 3, it is characterized in that, described electronic load module also comprises user interface, and described user interface is connected with described microprocessor, for showing the result of described microprocessor.
5. the electronic load tester with power meter function according to claim 4, is characterized in that, the input end of described tested power supply is also connected with the zero line of described alternating current.
6. the electronic load tester with power meter function according to claim 5, is characterized in that, described microprocessor and described operation processing unit carry out communication by described serial ports.
7. the electronic load tester with power meter function according to claim 3, is characterized in that, described microprocessor also draws live road to be connected with described electronic load.
CN201510039417.3A 2015-01-26 2015-01-26 A kind of electronic load tester with power meter function Active CN104614686B (en)

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CN201510039417.3A CN104614686B (en) 2015-01-26 2015-01-26 A kind of electronic load tester with power meter function

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CN201510039417.3A CN104614686B (en) 2015-01-26 2015-01-26 A kind of electronic load tester with power meter function

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CN104614686B CN104614686B (en) 2017-08-18

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Citations (7)

* Cited by examiner, † Cited by third party
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
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
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
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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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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.

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