CN209513942U - It is a kind of can no-voltage draw carry electronic load device - Google Patents
It is a kind of can no-voltage draw carry electronic load device Download PDFInfo
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- CN209513942U CN209513942U CN201822183048.7U CN201822183048U CN209513942U CN 209513942 U CN209513942 U CN 209513942U CN 201822183048 U CN201822183048 U CN 201822183048U CN 209513942 U CN209513942 U CN 209513942U
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Abstract
The utility model discloses it is a kind of can no-voltage draw the electronic load device carried, including installing operation panel, MCU processor, control module, data acquisition module, power module and low-tension supply module inside housings, one pin output end of the MCU processor and the input terminal of operation panel connect, another pin output end and the input terminal of control module connect, control module electrical connection regulation button, and the output end of control module is also connect with power module；The pin output end of the power module is connect with the input terminal of data acquisition module, low-tension supply module respectively, and the pin output end of data acquisition module and low-tension supply module is connected in the pin input end of MCU processor.The present apparatus forms series relationship by the way that low-tension supply module to be built in inside electronic load, with tested product, to provide a bias voltage, so that there is electronic load no-voltage to draw the brake carried, meets the property requirements of product test.
Description
Technical field
The utility model relates to electronic information technical field, specially it is a kind of can no-voltage draw the electronic load device carried.
Background technique
Existing electronic load test device, power sourcing current device are mainly transistor, metal-oxide-semiconductor or IGBT.This
All there is equivalent internal resistance value in a little semiconductor devices, therefore can have conducting voltage in pulling load current, and the bigger electric conduction of electric current
It presses higher.Therefore the conducting voltage for needing that its output voltage is required to be greater than load for tested products such as power supplys either battery,
Load could normally band carry.Such as by electronic load to battery discharge, after the voltage of battery drops to the conduction voltage drop of load,
Discharge current will slowly become smaller, and the electricity in battery is resulted in not release completely.
Utility model content
The purpose of this utility model is to provide it is a kind of can no-voltage draw the electronic load device carried, power module is integrated
Inside electronic load, so that there is electronic load no-voltage to draw the brake carried, meet the property requirements of product test, with solution
Certainly the problems mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions: it is a kind of can no-voltage draw the electronic load carried
Device, including operation panel, MCU processor, control module, data acquisition module and power module further include low-tension supply mould
Block, the operation panel integral type are inlaid on shell, shell be additionally provided with below operation panel binding post and regulation by
Button；The MCU processor, control module, data acquisition module, power module and low-tension supply module are arranged in shell
The input terminal of portion, a pin output end of MCU processor and operation panel connects, another pin output end and control module it is defeated
Enter end connection, control module electrical connection regulation button, and the output end of control module is also connect with power module；The power mould
The pin output end of block is connect with the input terminal of data acquisition module, low-tension supply module respectively, data acquisition module and low pressure
The pin output end of power module is connected in the pin input end of MCU processor.
Preferably, the data acquisition module includes the acquisition to electric current, voltage, temperature data, data acquisition module
The DTGS-800 of model selection Anydata.
Preferably, the control module includes the control of constant current to whole equipment, constant pressure, invariable power numerical value, controls mould
Block selects model KY 02S type controller.
Preferably, the power module and low-tension supply module are serially connected composition series circuit in the inside of shell, go here and there
The anode for joining circuit is connected by binding post with the anode of tested product, and the cathode of series circuit by binding post and is tested
The cathode of product is connected.
Preferably, the Res* load that the output voltage Vpm of the low-tension supply module is greater than power module leads ends can be drawn
The maximum current Imax of load, and the output electric current of low-tension supply module is greater than Imax.
Preferably, STM32F2 grades of the model of the MCU processor.
Preferably, the model of the power module selects Mitsubishi Mitsubishi IGBT module.
Compared with prior art, the beneficial effects of the utility model are as follows:
Originally can no-voltage draw carry electronic load device, by the way that low-tension supply module is built in inside electronic load, with
Tested product forms series relationship, so that a bias voltage is provided, as long as guaranteeing that being internally integrated electric power output voltage is greater than
The conduction voltage drop of maximum current is loaded, even if tested product output voltage can also allow load normally with carrying, to make close to zero volt
Obtaining electronic load, there is no-voltage to draw the brake carried, meet the property requirements of product test.
Detailed description of the invention
Fig. 1 is the overall structure connection figure of the utility model；
Fig. 2 is that the internal module of the utility model connects block diagram；
Fig. 3 is the schematic diagram of the function of the utility model；
Fig. 4 is the equivalent transformation figure of the utility model Fig. 3；
Fig. 5 is conventional electrical loading functional block diagram.
In figure: 1 operation panel, 2MCU processor, 3 control modules, 4 data acquisition modules, 5 power modules, 6 low-tension supplies
Module, 7 shells, 8 binding posts, 9 tested products, 10 regulation buttons.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-5, the embodiment of the present invention provide it is a kind of can no-voltage draw the electronic load device carried, including operating surface
Plate 1, MCU processor 2, control module 3, data acquisition module 4 and power module 5 further include low-tension supply module 6, operating surface
1 integral type of plate is inlaid on shell 7, and the shape of shell 7 is not limited to rectangle or circle, and shell 7 is also set in the lower section of operation panel 1
It is equipped with binding post 8 and regulation button 10；MCU processor 2, control module 3, data acquisition module 4, power module 5 and low tension
The inside of shell 7 is arranged in source module 6, and a pin output end of MCU processor 2 is connect with the input terminal of operation panel 1, another
Pin output end is connect with the input terminal of control module 3, the electrical connection regulation button 10 of control module 3, and the output of control module 3
End is also connect with power module 5；The pin output end of power module 5 respectively with data acquisition module 4, low-tension supply module 6
The pin output end of input terminal connection, data acquisition module 4 and low-tension supply module 6 is connected to the pin of MCU processor 2
On input terminal.
In the above-described embodiments, STM32F2 grades of the model of MCU processor 2 is a kind of high-performance processor, handles number
It is wide according to range；The model of data acquisition module 4 selects the DTGS-800 of Anydata, it can be achieved that remote control, cost is relatively low, number
According to the acquisition that acquisition module 4 includes to electric current, voltage, temperature data；Control module 3 selects model KY 02S type controller,
For a kind of standard type controller, accessory is simple and convenient on the market, and control module 3 includes constant current to whole equipment, constant pressure, perseverance
The control of magnitude of power；And the model of power module 5 selects Mitsubishi Mitsubishi IGBT module, is domestic independent research, system
To make at low cost, selection is convenient, and power module 5 and low-tension supply module 6 are serially connected composition series circuit in the inside of shell 7,
The anode of series circuit connect by the anode of binding post 8 and tested product 9, the cathode of series circuit pass through binding post 8 and
The cathode of tested product 9 is connected, wherein the output voltage Vpm of low-tension supply module 6 is greater than 5 leads ends of power module
Res* loads the maximum current Imax that can draw load, and the output electric current of low-tension supply module 6 is greater than Imax.
Design principle: originally can no-voltage draw carry electronic load device, by the way that low-tension supply module 6 is built in Electronic Negative
It carries internal, forms series relationship with tested product 9, to provide a bias voltage, as long as guaranteeing to be internally integrated power supply defeated
Voltage is greater than the conduction voltage drop of load maximum current out, even if tested product output voltage close to zero volt, can also allow load
Normal band carries, therefore no-voltage may be implemented and draw the function of carrying；Specifically, due to having loaded low-tension supply module 6 built-in, when tested
After trial product 9 accesses, it is equal to seal in a power supply, the electricity at 5 both ends of power module of load in the cathode of tested product 9
It presses Vres to be equal to 9 output voltage Vpo of tested product and adds built-in 6 output voltage Vpm of low-tension supply module, thus even if it is tested
Examination body output voltage is zero volt, and the voltage on power module 5 can also be equal to the voltage Vpm in built-in low-tension supply module 6, therefore
Only needing the output voltage for guaranteeing built-in low-tension supply module 6Vpm to be greater than Res*Imax, (Imax is the maximum that load can draw load
Electric current), and the output electric current of low-tension supply module 6 can realize that no-voltage is drawn greater than Imax in entire current range and carry function
Energy.
In summary: originally can no-voltage draw carry electronic load device, by the way that low-tension supply module 6 is built in Electronic Negative
It carries internal, forms series relationship with tested product 9, to provide a bias voltage, as long as guaranteeing to be internally integrated power supply defeated
Voltage is greater than the conduction voltage drop of load maximum current out, even if tested product output voltage close to zero volt, can also allow load
Normal band carries, so that there is electronic load no-voltage to draw the brake carried, meets the property requirements of product test.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. one kind can no-voltage draw the electronic load device carried, including operation panel (1), MCU processor (2), control module
(3), data acquisition module (4) and power module (5), it is characterised in that: further include low-tension supply module (6), the operating surface
Plate (1) integral type is inlaid on shell (7), and shell (7) is additionally provided with binding post (8) and regulation below operation panel (1)
Button (10)；The MCU processor (2), control module (3), data acquisition module (4), power module (5) and low-tension supply mould
Block (6) is arranged in the inside of shell (7), and a pin output end of MCU processor (2) is connect with the input terminal of operation panel (1),
Another pin output end is connect with the input terminal of control module (3), control module (3) electrical connection regulation button (10), and is controlled
The output end of module (3) is also connect with power module (5)；The pin output end of the power module (5) is acquired with data respectively
The pin of the input terminal connection of module (4), low-tension supply module (6), data acquisition module (4) and low-tension supply module (6) is defeated
Outlet is connected in the pin input end of MCU processor (2).
2. one kind according to claim 1 can no-voltage draw carry electronic load device, it is characterised in that: the data are adopted
Collection module (4) includes the acquisition to electric current, voltage, temperature data, and the model of data acquisition module (4) selects Anydata's
DTGS-800。
3. one kind according to claim 1 can no-voltage draw carry electronic load device, it is characterised in that: the control mould
Block (3) includes the control of constant current to whole equipment, constant pressure, invariable power numerical value, and control module (3) selects model KY 02S type
Controller.
4. one kind according to claim 1 can no-voltage draw carry electronic load device, it is characterised in that: the power mould
Block (5) and low-tension supply module (6) are serially connected composition series circuit in the inside of shell (7), and the anode of series circuit passes through
Binding post (8) is connected with the anode of tested product (9), and the cathode of series circuit passes through binding post (8) and tested product (9)
Cathode series connection.
5. one kind according to claim 1 can no-voltage draw carry electronic load device, it is characterised in that: the low tension
The Res* load that the output voltage Vpm of source module (6) is greater than power module (5) leads ends can draw the maximum current Imax of load, and
The output electric current of low-tension supply module (6) is greater than Imax.
6. one kind according to claim 1 can no-voltage draw carry electronic load device, it is characterised in that: at the MCU
Manage STM32F2 grades of model of device (2).
7. one kind according to claim 1 can no-voltage draw carry electronic load device, it is characterised in that: the power mould
The model of block (5) selects Mitsubishi Mitsubishi IGBT module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183048.7U CN209513942U (en) | 2018-12-24 | 2018-12-24 | It is a kind of can no-voltage draw carry electronic load device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822183048.7U CN209513942U (en) | 2018-12-24 | 2018-12-24 | It is a kind of can no-voltage draw carry electronic load device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209513942U true CN209513942U (en) | 2019-10-18 |
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ID=68196786
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822183048.7U Active CN209513942U (en) | 2018-12-24 | 2018-12-24 | It is a kind of can no-voltage draw carry electronic load device |
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| CN (1) | CN209513942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505366A (en) * | 2020-05-30 | 2020-08-07 | 东莞市韬科电子有限公司 | Transmission line test system suitable for electric energy heavy current transmission |
-
2018
- 2018-12-24 CN CN201822183048.7U patent/CN209513942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505366A (en) * | 2020-05-30 | 2020-08-07 | 东莞市韬科电子有限公司 | Transmission line test system suitable for electric energy heavy current transmission |
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 3C, building 1, saitu digital industrial factory building, 137 Bulan Road, gankeng community, Jihua street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN FAITHTECH Co.,Ltd. Address before: 518000 7, 702, new world industrial estate, sakaku Road, Longgang District, Shenzhen, Guangdong, China 702 Patentee before: SHENZHEN FAITHTECH Co.,Ltd. |
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