How to perform LED driver power supply aging?
How to perform LED driver power supply aging? According to the summary, there are roughly 4 aging methods for power supplies: The following are four opinions on power aging. If there are any wrong opinions, I hope you can help me correct them.
The first aging method is cement resistance, which is cheap but has the following disadvantages.
1. Several specifications with fixed resistance are optional;
2. The resistance of various power supply specifications cannot be adjusted to the accurate current required for aging; the maintenance is inconvenient and requires workers with electronic skills to complete
3. The aging power supply cannot accurately 100% load aging; the resistance load has a high probability of error due to manual replacement of the load size.
4. Resistor aging changes the size of the load, and it is inefficient to change the wiring one by one manually. To adjust the load size, you need to calculate it before you can get the set current value.
5. The resistance load has a high failure rate, and the resistance value has a large deviation after the temperature rises. It is easy to cause false aging of the product, and the quality of the product is uncontrollable.
The second type of electronic load is aging, its advantages are as follows
1. The load size setting for the constant current mode is linear and smooth; computer monitoring and centralized management can effectively monitor the quality of the aging process, screen abnormal products intuitively, and alert prompts to ensure the quality of aging products.
2. The electronic load can only be replaced according to the different products of DC JACK; the electrical performance of all tested power supplies can be recorded and traced, which is convenient for quality analysis. One person can manage multiple aging areas, saving labor and reducing labor costs.
3. The load size of the entire aging car or area can be adjusted uniformly to ensure the consistency of aging;
4. The electronic load is above MTBF80000H, with fewer failures and improved work efficiency. The electronic load adopts a modular structure for easy maintenance
5. The operation is convenient, and it can be completed by ordinary workers, and the foolproof operation is not easy to make mistakes.
6. A wide range of load settings can be adapted to changing power supply specifications. The electronic load monitors the electrical properties of the aging product under high temperature and full load, which can guarantee the product
The third type is energy-saving and aging with high technical content and long-term return on investment, but the one-time investment is relatively large, which is not conducive to the capital turnover of manufacturers
1. High-efficiency and energy-saving The energy recovery rate can reach up to 80%. Expansion of production capacity can increase production by 2-3 times on the original basis without changing the factory's electricity quota.
2. Convenient and flexible. It can be applied to a variety of power inputs; the aging trolley can be placed near the production line at will, without the need for a fixed area.
3. Stable and reliable The trolley has superior materials and is durable. The internal load has a variety of protection functions to ensure continuous and normal operation. Easy to monitor The monitoring board automatically monitors without manual testing. Improved quality can lengthen the aging time without increasing the electricity bill.
4. Safety isolation The trolley adopts a closed design, and the inside is isolated from the outside to ensure safety.
5. Compliance with standards The grid-connected current is a standard sine wave, which does not pollute the grid. improve product quality.
6. High rate of return One time investment, multi-year return. Cost saving There is no need to replace the resistor, which saves a lot of labor cost. The internal load of the trolley heats up by itself, saving the cost of installing heating equipment.
The fourth method is generally for manufacturers of finished LED products to age the power supply, which is aging with lights. The disadvantages are as follows:
The cost is relatively high. Inconvenient aging, slow efficiency, and long lamp aging time
