CN201532397U - Adjustable digital display direct current electronic load - Google Patents
Adjustable digital display direct current electronic load Download PDFInfo
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- CN201532397U CN201532397U CN 200920030963 CN200920030963U CN201532397U CN 201532397 U CN201532397 U CN 201532397U CN 200920030963 CN200920030963 CN 200920030963 CN 200920030963 U CN200920030963 U CN 200920030963U CN 201532397 U CN201532397 U CN 201532397U
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- load
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- 230000003321 amplification Effects 0.000 claims description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
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Abstract
The utility model provides an adjustable digital display direct current electronic load, which is structurally formed by sequentially connecting to-be-tested power supply voltage, a power consumption unit, a current sampling module, a proportion amplifying module, an A/D converting module, a data processing module and an LCD display device. Compared with an expensive specialized electronic load, the electronic load has the advantages of simple realization, comparatively low cost and capability of effectively reducing the cost of test devices. Compared with a load formed by pure resistance networks, the electronic load has the advantages of better adjustability and capability of arbitrarily setting required current values within a permissible range of specification and accuracy.
Description
1, technical field
Specifically a kind of scalable numeral of the utility model shows the DC electronic load.
2, background technology
The load (electrical appliance) of electronic load in can simulation true environment generally all can detect the quality of power supply with electronic load to the relatively stricter producer of power requirement.It has multi-functional, can the regulating load size, and short circuit, overcurrent, dynamic or the like, all power supply producers all can be useful, and must have.But existing electronic load adopts pure resistance to take long-pending load, and precision is not high enough, and adjustability is poor; And some equipment price is comparatively expensive, can not be extensive use of by numerous clients.
3, summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of scalable numeral to show the DC electronic load.
The technical solution of the utility model realizes in the following manner, its structure is made of supply voltage to be measured, power consumption unit, current sampling module, ratio amplification module, A/D modular converter, data processing module and LCD display device, and supply voltage to be measured, power consumption unit, current sampling module, ratio amplification module, A/D modular converter, data processing module are connected successively with the LCD display device.
Above-mentioned ratio amplification module is connected with the comparator circuit module, and the comparator circuit module is connected with control circuit module.
Above-mentioned current regulating module is connected with the comparator circuit module.
Above-mentioned control circuit module is connected with the power consumption unit.
The utility model has the advantages that:
1, compare with the professional electronic load of costliness, this electronic load has realizes that simply cost is lower, can effectively reduce the cost of testing apparatus;
2, compare with the load that the pure resistance network is formed, it is better that this electronic load has modulability, in specification and precision allowed band, can set the current value of wanting arbitrarily.
4, description of drawings
Fig. 1 is the structural representation that the scalable numeral shows the DC electronic load;
Mark in the accompanying drawing is represented respectively;
1, supply voltage to be measured; 2, power consumption unit; 3, current sampling module; 4, ratio amplification module; 5, A/D modular converter; 6, data processing module; 7, LCD display device; 8, comparator circuit module; 9, control circuit module; 10, current regulating module.
5, embodiment
Below in conjunction with accompanying drawing scalable numeral of the present utility model is shown that the DC electronic load describes in detail below doing.
As shown in Figure 1, scalable numeral of the present utility model shows that its structure of DC electronic load is made of supply voltage 1 to be measured, power consumption unit 2, current sampling module 3, ratio amplification module 4, A/D modular converter 5, data processing module 6 and LCD display device 7, and supply voltage 1 to be measured, power consumption unit 2, current sampling module 3, ratio amplification module 4, A/D modular converter 5, data processing module 6 connect and compose successively with LCD display device 7.
Current regulating module 10 is connected with comparator circuit module 8.
The power consumption of power supply to be measured is on metal-oxide-semiconductor (being the power consumption unit), by sampling metal-oxide-semiconductor IDS electric current, behind the ratio amplification module, on the one hand by sending LCD display device behind the A/D modular converter; On the other hand, compare, thereby produce FEEDBACK CONTROL voltage, control the electric current I DS of the metal-oxide-semiconductor drain-source utmost point of flowing through automatically, make it be stabilized in setting value with the current value of setting.
Scalable numeral of the present utility model shows that its processing and fabricating of DC electronic load is very simple and convenient, can process shown in the accompanying drawing to specifications.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (4)
1. the scalable numeral shows the DC electronic load, it is characterized in that being made of supply voltage to be measured, power consumption unit, current sampling module, ratio amplification module, A/D modular converter, data processing module and LCD display device, supply voltage to be measured, power consumption unit, current sampling module, ratio amplification module, A/D modular converter, data processing module are connected successively with the LCD display device.
2. scalable numeral according to claim 1 shows the DC electronic load, it is characterized in that the ratio amplification module is connected with the comparator circuit module, and the comparator circuit module is connected with control circuit module.
3. scalable numeral according to claim 2 shows the DC electronic load, it is characterized in that current regulating module is connected with the comparator circuit module.
4. scalable numeral according to claim 1 and 2 shows the DC electronic load, it is characterized in that control circuit module is connected with the power consumption unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920030963 CN201532397U (en) | 2009-07-31 | 2009-07-31 | Adjustable digital display direct current electronic load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920030963 CN201532397U (en) | 2009-07-31 | 2009-07-31 | Adjustable digital display direct current electronic load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532397U true CN201532397U (en) | 2010-07-21 |
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ID=42527800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920030963 Expired - Fee Related CN201532397U (en) | 2009-07-31 | 2009-07-31 | Adjustable digital display direct current electronic load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313828A (en) * | 2011-06-30 | 2012-01-11 | 重庆长安汽车股份有限公司 | Direct current converter electronic load used for hybrid vehicle |
| CN102749591A (en) * | 2011-04-22 | 2012-10-24 | 昆山金鑫新能源科技有限公司 | Passive LCD (liquid crystal display) display type constant-current electronic load |
| CN110501540A (en) * | 2019-08-23 | 2019-11-26 | 深圳市精泰达科技有限公司 | A kind of electronic load circuit |
-
2009
- 2009-07-31 CN CN 200920030963 patent/CN201532397U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749591A (en) * | 2011-04-22 | 2012-10-24 | 昆山金鑫新能源科技有限公司 | Passive LCD (liquid crystal display) display type constant-current electronic load |
| CN102313828A (en) * | 2011-06-30 | 2012-01-11 | 重庆长安汽车股份有限公司 | Direct current converter electronic load used for hybrid vehicle |
| CN110501540A (en) * | 2019-08-23 | 2019-11-26 | 深圳市精泰达科技有限公司 | A kind of electronic load circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20120731 |