CN101634690A - Power supply testing device - Google Patents
Power supply testing device Download PDFInfo
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- CN101634690A CN101634690A CN 200810132145 CN200810132145A CN101634690A CN 101634690 A CN101634690 A CN 101634690A CN 200810132145 CN200810132145 CN 200810132145 CN 200810132145 A CN200810132145 A CN 200810132145A CN 101634690 A CN101634690 A CN 101634690A
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- power supply
- voltage
- testing device
- stabilizing module
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Abstract
The invention provides a power supply testing device, relates to the structure improvement of the power supply testing device and belongs to an electronic load of a low-voltage switch power supply or a linear power supply. The power supply testing device is mainly used for testing the voltage stabilization effect of a voltage-stabilizing tube, achieving current regulation and the like. The invention is to provide the power supply testing device with simple structure and high accuracy of constant current. The power supply testing device is characterized by comprising three parts: a tested power supply, an adjustable voltage-stabilizing module and a power distribution module; the output end of the power distribution module is connected with the output end of the voltage-stabilizing module to provide a resistance with a fixed resistance value; and the input end of the adjustable voltage-stabilizing module is connected with the tested power supply to regulate the load current by regulating the output voltage of the voltage-stabilizing module.
Description
Technical field:
The present invention relates to the improvement of power supply testing device structure, is the electronic load that belongs to low tension switch power supply, linear power supply, be mainly used in the test stabilivolt voltage regulation result, realize Current Regulation etc.
Background technology:
At present, existing power supply testing device all adopts large power triode or field effect transistor to realize Current Regulation, the Current Regulation that this mode realizes is the circuit structure complexity not only, and easy temperature influence and cause electric current non-constant, if adding closed-loop system, circuit is can be more complicated, is easy to generate fault, and easy-maintaining not after damaging.In addition, adopt large power triode or field effect transistor power all to consume on power tube, cause power tube overheated and damage easily, brought inconvenience to the user.
Summary of the invention:
The present invention is exactly at the problems referred to above, provides a kind of simple in structure, the power supply testing device that constant current accuracy is high.
For achieving the above object, the present invention adopts following technical scheme, it is characterized in that, the present invention includes tested power supply, adjustable Voltage stabilizing module and power division module three parts; The output terminal of described power division module is connected with the output terminal of Voltage stabilizing module, is used to provide the resistance of fixed resistance value; The input end of described adjustable Voltage stabilizing module is connected with tested power supply, is used for adjusting load current by the output voltage of adjusting Voltage stabilizing module.
Beneficial effect of the present invention:
Because the present invention adjusts the power of consumption on stabilivolt by changing resistance, and uses adjustable Voltage stabilizing module to realize the continuous adjustment of electric current, the stabilivolt performance is more stable, and output voltage varies with temperature very little in certain temperature range; In addition, used power resistor stable performance, sufficient radiating condition is arranged; Therefore, can guarantee the constant current of suitable precision.
Description of drawings:
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment:
As shown in Figure 1, the present invention includes three ones of tested power supply, adjustable Voltage stabilizing module and power division modules, the output terminal LOAD1 of power division module is connected with the output terminal OUT of adjustable Voltage stabilizing module, another output terminal LOAD2 of power division module is connected with another output terminal GNDb of adjustable Voltage stabilizing module, is used to provide the resistance of fixed resistance value; The input end IN of adjustable Voltage stabilizing module is connected with the positive pole of tested power supply, and another input end GNDa is connected with the negative pole of tested power supply, is used for adjusting load current by the output voltage of adjusting Voltage stabilizing module.
As shown in Figure 2, described power division module is made up of power resistor R1, R2 and range switch, two power resistor R1, R2 receive respectively on two common ports of range switch, the other end of resistance R 2 is connected on 3,4 ends of range switch, and the other end of resistance R 1 is connected on 04 end of range switch.2 ends of range switch directly link to each other with 02 end.The knob of range switch places 1,2,3,4 positions to realize zero load, polyphone, use and four kinds of states in parallel separately respectively, adjusts the power that is consumed on the stabilivolt in the Voltage stabilizing module in this way.
When the voltage stabilizing situation of using proving installation test stabilivolt of the present invention under different electric currents, the positive pole of this electronic load is received the OUT end of stabilivolt, negative pole is received the GND end of stabilivolt, the positive pole of power supply is received the IN end of stabilivolt, the negative pole of power supply is received the GND end of stabilivolt, as shown in Figure 7, adjusts the electronic load current value, test the voltage at stabilivolt two ends simultaneously, just can draw the voltage stabilizing situation of stabilivolt under different electric currents.
Pick-up unit of the present invention is by special value stream mode, makes the constant current that just can obtain suitable precision under the situation of open loop; In addition because it has used the power division module, power reasonably is assigned on stabilivolt and the power resistor, enlarge the power bracket of tested power supply, cooperated oscillograph, multimeter to can be used for ripple, voltage regulation factor, the current regulation of Test Switchboard power supply, linear power supply.
Claims (1)
1, a kind of power supply testing device is characterized in that, the present invention includes tested power supply, adjustable Voltage stabilizing module and power division module three parts; The output terminal of described power division module is connected with the output terminal of Voltage stabilizing module, is used to provide the resistance of fixed resistance value; The input end of described adjustable Voltage stabilizing module is connected with tested power supply, is used for adjusting load current by the output voltage of adjusting Voltage stabilizing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810132145 CN101634690A (en) | 2008-07-21 | 2008-07-21 | Power supply testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810132145 CN101634690A (en) | 2008-07-21 | 2008-07-21 | Power supply testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101634690A true CN101634690A (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810132145 Pending CN101634690A (en) | 2008-07-21 | 2008-07-21 | Power supply testing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101634690A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103760499A (en) * | 2014-01-26 | 2014-04-30 | 广州视源电子科技股份有限公司 | Power panel testing method and device |
| CN108627723A (en) * | 2018-05-04 | 2018-10-09 | 武汉精立电子技术有限公司 | Battery simulating device and method for BMS tests |
| CN109917306A (en) * | 2019-03-13 | 2019-06-21 | 中国电子科技集团公司第二十四研究所 | It is a kind of for testing the device of power supply product adjustment end function |
-
2008
- 2008-07-21 CN CN 200810132145 patent/CN101634690A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103760499A (en) * | 2014-01-26 | 2014-04-30 | 广州视源电子科技股份有限公司 | Power panel testing method and device |
| CN103760499B (en) * | 2014-01-26 | 2016-08-17 | 广州视源电子科技股份有限公司 | Power panel testing method and device |
| CN108627723A (en) * | 2018-05-04 | 2018-10-09 | 武汉精立电子技术有限公司 | Battery simulating device and method for BMS tests |
| CN109917306A (en) * | 2019-03-13 | 2019-06-21 | 中国电子科技集团公司第二十四研究所 | It is a kind of for testing the device of power supply product adjustment end function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100127 |