CN205301547U - Electronic load device with self -learning wave form function - Google Patents
Electronic load device with self -learning wave form function Download PDFInfo
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- CN205301547U CN205301547U CN201521125522.0U CN201521125522U CN205301547U CN 205301547 U CN205301547 U CN 205301547U CN 201521125522 U CN201521125522 U CN 201521125522U CN 205301547 U CN205301547 U CN 205301547U
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Abstract
The utility model provides an electronic load device with self -learning wave form function, including treater, memory and load power circuit, simulate true load and draw and carry, still include current waveform acquisition unit, treater control current waveform acquisition unit gathers the current waveform data between await measuring power and the true load, and with current waveform data storage back in the memory, the treater is independently simulated true load according to current waveform data management load power circuit and is drawn year, the realization possesses self -learning wave form function, the real work condition that can the true load of accurate simulation.
Description
Technical field
This utility model relates to a kind of electronic load device, particularly relates to a kind of electronic load device with self study waveform function.
Background technology
Electronic load device can simulate the load (electrical appliance) in true environment. It can accurately detect load voltage, accurately adjusts load current, can realize fictitious load short circuit simultaneously, and fictitious load is perceptual, resistive and capacitive, the capacitive load currents rise time. Be typically in Switching Power Supply debugging detection in electronic load device be indispensable.
The electronic load device of prior art substantially all has to be determined voltage, determine electric current, determines resistance and determines power mode, and nationality can be met testing requirement widely by these patterns. For example, determining electric current and the determinand determining resistance mode for voltage source is tested, can confirm that determinand is under different loading conditions, whether output voltage still maintains stable output. For the charger of battery or charging, constant voltage mode can change the output voltage of charger or charging, to guarantee charger or charging correctness of charging current when set output voltage. When determinand is battery, electronic load device then can be changed into analog electronic equipment and draw the behavior of load, the situations such as electric discharge application, the power consumption of many batteries all can draw load behavior to carry out the analysis of battery by the simulation of electronic load, and determining power mode is then the best mode that analog electronic equipment draws load behavior.
At present, although power supply can be drawn load behavior thus the performance of power supply is tested with above-mentioned several functional mode real load by above-mentioned electronic load device, but, power supply true with load time perturbation waveform be objectively extremely complex, electronic load device of the prior art only several draws load pattern to be difficult to meet simulation real load power supply draws load behavior with above-mentioned, it is impossible to meet the demand of power supply test; Dynamically it is capable of, with load, the function that more complicated electronic load device sets with load situation of change simultaneously, dynamic is the band load function that one trapezoidal wave of simulation changes with load, can significantly expand the variation pattern that electronic load device can perform, but this kind of analog band load have to be equipped with an external signal generator and combine and use, and electronic load device can only analog voltage at the waveshape signal of below 10V.
Utility model content
The purpose of this utility model is to provide a kind of electronic load device with self study waveform function and method of work thereof, and solving existing electronic load device simulation real load needs auxiliary signal equipment in turn result in the coarse problem of simulation.
To achieve these goals, this utility model provides a kind of electronic load device with self study waveform function, including processor, memorizer and bearing power circuit, simulation real load carries out drawing load, also include current waveform collecting unit, processor controls current waveform collecting unit and gathers the current waveform data between power supply to be measured and real load, after being stored in memorizer by current waveform data, processor controls bearing power circuit separate analogue real load according to current waveform data and carries out drawing load.
Described current waveform collecting unit includes current transformer, operational amplifier and ADC analog-digital converter, current transformer converts the current to voltage and is input to operational amplifier, regulate extremely suitable voltage by operational amplifier and be input to ADC analog-digital converter, and obtained transformation result by processor.
Memorizer is Flash, EEPROM or NVRAM memory.
Current transformer is inductive type or hall sensing type.
Utility model this utility model electronic load is arranged between the outfan of power supply and the input of real load and is connected, and seizes waveform/data during Power supply belt real load, and waveshape signal is current waveform or voltage waveform, it is preferable that seize current waveform. This utility model electronic load device is seized and after storaging current or voltage waveform data, the test that power supply is carried out properties by this true waveform seized available uses real load without connecing again, thus reaching simulation real load power supply draws behavior and the test of load.
The beneficial effects of the utility model are that electronic load device possesses self study waveform function, it is possible to accurately simulate the real work situation of real load.
Accompanying drawing explanation
Fig. 1 is this utility model electronic load device work connection diagram;
Fig. 2 is this utility model current waveform collecting unit structured flowchart;
Fig. 3 is the structured flowchart of this utility model electronic load device.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment is as shown in Figure 1, Figure 2 and Figure 3, the present embodiment provides a kind of electronic load device with self study waveform function, including processor, memorizer, bearing power circuit and current waveform collecting unit, simulation real load carries out drawing load, processor controls current waveform collecting unit and gathers the current waveform data between power supply to be measured and real load, after being stored in memorizer by current waveform data, processor controls bearing power circuit separate analogue real load according to current waveform data and carries out drawing load; Described current waveform collecting unit includes current transformer, operational amplifier and ADC analog-digital converter, current transformer converts the current to voltage and is input to operational amplifier, regulate extremely suitable voltage by operational amplifier and be input to ADC analog-digital converter, and obtained transformation result by processor; Memorizer is flash storage, or can also adopt EEPROM or NVRAM memory; Current transformer is inductive type, or can also adopt hall sensing type.
Current waveform collecting unit is not limited in the present embodiment to adopt transformer, it is possible to use sampling resistor.
The present embodiment simulation real load carries out drawing load, electronic load device includes processor, memorizer, bearing power circuit and current waveform collecting unit, bearing power circuit includes bearing power device, electronic load device is connected between power supply to be measured and real load, controlled current waveform collecting unit by processor and completely draw collection current waveform data in the load period time at one section, and after current waveform data is stored in memorizer, processor controls bearing power circuit separate analogue real load according to current waveform data and carries out drawing load.
The present embodiment provides the benefit that electronic load device possesses self study waveform function, it is possible to accurately simulate the real work situation of real load.
Claims (4)
1. an electronic load device with self study waveform function, including processor, memorizer and bearing power circuit, simulation real load carries out drawing load, it is characterized in that: also include current waveform collecting unit, processor controls current waveform collecting unit and gathers the current waveform data between power supply to be measured and real load, after being stored in memorizer by current waveform data, processor controls bearing power circuit separate analogue real load according to current waveform data and carries out drawing load.
2. a kind of electronic load device with self study waveform function according to claim 1, it is characterized in that: described current waveform collecting unit includes current transformer, operational amplifier and ADC analog-digital converter, current transformer converts the current to voltage and is input to operational amplifier, regulate extremely suitable voltage by operational amplifier and be input to ADC analog-digital converter, and obtained transformation result by processor.
3. a kind of electronic load device with self study waveform function according to claim 1 and 2, it is characterised in that: memorizer is Flash, EEPROM or NVRAM memory.
4. a kind of electronic load device with self study waveform function according to claim 2, it is characterised in that: current transformer is inductive type or hall sensing type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125522.0U CN205301547U (en) | 2015-12-31 | 2015-12-31 | Electronic load device with self -learning wave form function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125522.0U CN205301547U (en) | 2015-12-31 | 2015-12-31 | Electronic load device with self -learning wave form function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205301547U true CN205301547U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521125522.0U Active CN205301547U (en) | 2015-12-31 | 2015-12-31 | Electronic load device with self -learning wave form function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205301547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946507A (en) * | 2019-02-22 | 2019-06-28 | 苏州埃缇益自动化科技有限公司 | A kind of supply voltage real-time monitoring system of semiconductor test machine |
| CN111123011A (en) * | 2016-09-13 | 2020-05-08 | 艾德克斯电子（南京）有限公司 | Electronic load device and parallel operation system thereof |
-
2015
- 2015-12-31 CN CN201521125522.0U patent/CN205301547U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123011A (en) * | 2016-09-13 | 2020-05-08 | 艾德克斯电子（南京）有限公司 | Electronic load device and parallel operation system thereof |
| CN111123011B (en) * | 2016-09-13 | 2023-04-25 | 艾德克斯电子（南京）有限公司 | Electronic load device and parallel operation system thereof |
| CN109946507A (en) * | 2019-02-22 | 2019-06-28 | 苏州埃缇益自动化科技有限公司 | A kind of supply voltage real-time monitoring system of semiconductor test machine |
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