The history of aging equipment
2018.06.12
browsing
marriagehelpadvisor.com
In order to test and improve the reliability, stability, and safety of power products, aging testing of power products has become an important part of the production process of such products. The so-called “aging” refers to the simulation of a long-time full-load test (also known as Burn-in Test or Aging Test) of a power supply under harsh conditions of high temperature to simulate The actual use of the harsh conditions that may occur to verify the performance of the product.
The traditional aging test equipment uses mostly high-power resistors as the dummy load, which is also the first generation of aging equipment. Its advantages are low cost and simplicity. However, due to the variety of power supply products and specifications, there are often many models in the same power plant, and the output specifications of each model are not the same, and the required impedance and power of the dummy load are also different, so the traditional The disadvantages of resistive aging equipment have become more and more prominent, mainly as follows:
1 The resistance value of the resistor is fixed, and the available specifications are few. Many of them need to be customized to the resistance manufacturer.
2 The power supply has various specifications, and the resistor cannot be accurately matched to the exact current required for aging.
3 The resistance error is large, and it is easy to produce deviation after temperature rise, and it can not guarantee the product 100% load aging;
4 to adjust the load size must be calculated first, select the load resistance can only get approximate current value;
5 The aging process cannot be monitored automatically, and inspections must be conducted manually one by one, which is inefficient and easy to miss.
6 It is not possible to record the parameters of the aging process and it is not convenient for quality traceability management;
7 The aging report cannot be generated, which is inconvenient for the analysis and evaluation of product quality.
In view of the outstanding drawbacks of the resistive type aging load, a second generation of aging equipment, namely a simple adjustable electronic load, appears. Although the cost is much higher than that of the first generation, the load current can be adjusted according to the specifications of the product. In order to overcome the product changeover, the aging equipment needs to replace the corresponding resistance, and to a certain extent, it also improves the accuracy and efficiency of aging. The second-generation load overcomes the first three disadvantages of the first-generation load, but the remaining four disadvantages are still prominent and cannot meet the needs of modern production processes. Although there are many standard test electronic load instruments in the market that can fully meet the aging requirements in terms of performance and function, such instruments are usually expensive and bulky, and their designs are mainly used for R&D, engineering, production, and other test purposes, and are difficult to achieve. System networks with hundreds of channels are used for mass aging. Entry Atlas More Atlas
Combining the advantages and disadvantages of the standard electronic load and the previous two generations of the aging load, an optimization design is specifically designed for the needs of the power aging test. A high-performance MCU (micro device) is used as the core of the control unit to design an intelligent power supply. Aging test electronic load module and power aging test system that centralizes a group of such electronic modules. Belongs to the third generation of aging loads. Its advantages are as follows:
1 The same module can have up to three CC/CV/LED modes, which are compatible with various power products.
2 The same module in the specification range, voltage / current value can be arbitrarily set to accurately match the product specifications;
3 Load mode and parameter settings are flexible and quick, can be set globally, and can also be set in different areas or layers;
4 The product aging parameters are monitored in real time, abnormal products are automatically screened and alerted, and the location of bad products can be accurately located;
1 Wide load setting range, high loading accuracy, suitable for a variety of power supply products;
2 It can record and trace the electrical properties of all tested products to facilitate quality analysis;
3 Computer centralized monitoring and management can effectively supervise the quality of the aging process;
4 can automatically generate aging reports, to facilitate the engineering staff for quality analysis and evaluation;
5 The system is easy to operate, one can manage multiple aging areas, saving labor costs;
6 Modular structure design to facilitate system maintenance;
With the increasing progress of technology and continuous improvement of manufacturing process requirements, the functions of the third-generation aging electronic load module in CPET have become more and more perfect. For example, the new CP8102 aging mode module in China Keyuan has a wide voltage range. , Current input range, high bandwidth, high precision, 4-channel independent isolation, with CC/CV/CR/CP/LED and other modes to simulate real LED characteristics, special design and improvement for the characteristics of LED drive power supply Load compatibility and reliability have increased dramatically.
The above are all energy-consuming aging electronic loads. There is also an energy-saving aging program. Compared with energy-consuming ones, the biggest highlight of energy-saving feedback is energy saving and environmental protection, which brings benefits to users. It is to save electricity. However, due to the limitations of its own solutions and current technologies, energy feedback type aging systems usually have only CC/CV modes, and the input voltage range is narrow. They are only applicable to medium and high power adapters, industrial power supplies, communications power supplies, and high power. Aging of chargers and street lamps. For the common LED driver power supply on the market, it is not very compatible, mainly because of the following reasons: First, the LED driver power supply is limited by the cost, usually a simple constant current source, and the output ripple is large. If the response speed or bandwidth of the load is not enough, it is easy to cause power supply and load oscillation, and the load voltage or current is inaccurate, and the test product is burned out; secondly, the characteristic requirement of the LED drive power protection circuit is too high. The aging load with LED mode is generally not able to load properly. For a load that does not have an LED mode, if the CV mode is used instead of or in analog to the LED mode, overshoot is easily generated at the moment of loading, and if the driving power protection is too sensitive, It will not be able to pull the load normally. If the protective action is sluggish, it may easily be beaker driving power due to overshoot. Similarly, if the load bandwidth is not enough, the response speed is too slow, and the power supply is prone to overvoltage protection (OVP). The energy-consuming aging load LED mode performs well in these areas. With the continuous advancement of technology, these issues of energy-feedback-type aging loads will surely be gradually improved and eventually resolved, and aging equipment will certainly be energy-saving, intelligent, and automated.
The traditional aging test equipment uses mostly high-power resistors as the dummy load, which is also the first generation of aging equipment. Its advantages are low cost and simplicity. However, due to the variety of power supply products and specifications, there are often many models in the same power plant, and the output specifications of each model are not the same, and the required impedance and power of the dummy load are also different, so the traditional The disadvantages of resistive aging equipment have become more and more prominent, mainly as follows:
1 The resistance value of the resistor is fixed, and the available specifications are few. Many of them need to be customized to the resistance manufacturer.
2 The power supply has various specifications, and the resistor cannot be accurately matched to the exact current required for aging.
3 The resistance error is large, and it is easy to produce deviation after temperature rise, and it can not guarantee the product 100% load aging;
4 to adjust the load size must be calculated first, select the load resistance can only get approximate current value;
5 The aging process cannot be monitored automatically, and inspections must be conducted manually one by one, which is inefficient and easy to miss.
6 It is not possible to record the parameters of the aging process and it is not convenient for quality traceability management;
7 The aging report cannot be generated, which is inconvenient for the analysis and evaluation of product quality.
In view of the outstanding drawbacks of the resistive type aging load, a second generation of aging equipment, namely a simple adjustable electronic load, appears. Although the cost is much higher than that of the first generation, the load current can be adjusted according to the specifications of the product. In order to overcome the product changeover, the aging equipment needs to replace the corresponding resistance, and to a certain extent, it also improves the accuracy and efficiency of aging. The second-generation load overcomes the first three disadvantages of the first-generation load, but the remaining four disadvantages are still prominent and cannot meet the needs of modern production processes. Although there are many standard test electronic load instruments in the market that can fully meet the aging requirements in terms of performance and function, such instruments are usually expensive and bulky, and their designs are mainly used for R&D, engineering, production, and other test purposes, and are difficult to achieve. System networks with hundreds of channels are used for mass aging. Entry Atlas More Atlas
Combining the advantages and disadvantages of the standard electronic load and the previous two generations of the aging load, an optimization design is specifically designed for the needs of the power aging test. A high-performance MCU (micro device) is used as the core of the control unit to design an intelligent power supply. Aging test electronic load module and power aging test system that centralizes a group of such electronic modules. Belongs to the third generation of aging loads. Its advantages are as follows:
1 The same module can have up to three CC/CV/LED modes, which are compatible with various power products.
2 The same module in the specification range, voltage / current value can be arbitrarily set to accurately match the product specifications;
3 Load mode and parameter settings are flexible and quick, can be set globally, and can also be set in different areas or layers;
4 The product aging parameters are monitored in real time, abnormal products are automatically screened and alerted, and the location of bad products can be accurately located;
1 Wide load setting range, high loading accuracy, suitable for a variety of power supply products;
2 It can record and trace the electrical properties of all tested products to facilitate quality analysis;
3 Computer centralized monitoring and management can effectively supervise the quality of the aging process;
4 can automatically generate aging reports, to facilitate the engineering staff for quality analysis and evaluation;
5 The system is easy to operate, one can manage multiple aging areas, saving labor costs;
6 Modular structure design to facilitate system maintenance;
With the increasing progress of technology and continuous improvement of manufacturing process requirements, the functions of the third-generation aging electronic load module in CPET have become more and more perfect. For example, the new CP8102 aging mode module in China Keyuan has a wide voltage range. , Current input range, high bandwidth, high precision, 4-channel independent isolation, with CC/CV/CR/CP/LED and other modes to simulate real LED characteristics, special design and improvement for the characteristics of LED drive power supply Load compatibility and reliability have increased dramatically.
The above are all energy-consuming aging electronic loads. There is also an energy-saving aging program. Compared with energy-consuming ones, the biggest highlight of energy-saving feedback is energy saving and environmental protection, which brings benefits to users. It is to save electricity. However, due to the limitations of its own solutions and current technologies, energy feedback type aging systems usually have only CC/CV modes, and the input voltage range is narrow. They are only applicable to medium and high power adapters, industrial power supplies, communications power supplies, and high power. Aging of chargers and street lamps. For the common LED driver power supply on the market, it is not very compatible, mainly because of the following reasons: First, the LED driver power supply is limited by the cost, usually a simple constant current source, and the output ripple is large. If the response speed or bandwidth of the load is not enough, it is easy to cause power supply and load oscillation, and the load voltage or current is inaccurate, and the test product is burned out; secondly, the characteristic requirement of the LED drive power protection circuit is too high. The aging load with LED mode is generally not able to load properly. For a load that does not have an LED mode, if the CV mode is used instead of or in analog to the LED mode, overshoot is easily generated at the moment of loading, and if the driving power protection is too sensitive, It will not be able to pull the load normally. If the protective action is sluggish, it may easily be beaker driving power due to overshoot. Similarly, if the load bandwidth is not enough, the response speed is too slow, and the power supply is prone to overvoltage protection (OVP). The energy-consuming aging load LED mode performs well in these areas. With the continuous advancement of technology, these issues of energy-feedback-type aging loads will surely be gradually improved and eventually resolved, and aging equipment will certainly be energy-saving, intelligent, and automated.
Previous：The future development trend of aging equipment
Next：No
QQ
mobile
Phone
Back to top