LED driver power supply currently has insufficient reasons:
The technicians of the company producing LED lighting and related products have insufficient understanding of the switching power supply, and the power supply can work normally, but some key evaluations and electromagnetic compatibility considerations are not enough, and there are certain hidden dangers;
Most of the LED power supply manufacturers are transforming from ordinary switching power supplies to do LED power supply, and the characteristics and use of LEDs are not enough;
There are almost no standards for LEDs, most of which are standards for reference switching power supplies and electronic rectifiers;
Most LED power supplies are not uniform now, so most of them are relatively small. The purchase volume is small, the price is high, and the component suppliers are not very cooperative;
The stability of the LED power supply: wide voltage input, high temperature and low temperature operation, over temperature, over voltage protection and other issues are not solved one by one;
The first is the overall cycle of the driver circuit, especially the key components such as: the cycle of the capacitor at high temperature directly affects the cycle of the power supply;
LED drivers should challenge higher conversion efficiency, especially when driving high-power LEDs, because all power that is not used as light output is dissipated as heat, and the power conversion efficiency is too low, which affects the energy-saving effect of LEDs. Play
At present, in the application of low power (1-5W), the proportion of constant current driving power supply has been close to 1/3, which is close to the cost of the light source, which has affected the market to some extent.
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