How to choose driving power for LED explosion-proof lights-ALLTOP-img
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How to choose driving power for LED explosion-proof lights?

by:ALLTOP      2021-04-07
The mobile phone //./LED explosion-proof lamp drive power supply is a power converter that converts the power supply into a specific voltage and current to drive the LED explosion-proof lamp to emit light. Under normal circumstances: the input of the LED explosion-proof lamp drive power includes high-voltage power frequency AC (ie, city Electricity), low-voltage direct current, high-voltage direct current, low-voltage high-frequency alternating current (such as the output of electronic transformer), etc. The output of the LED explosion-proof lamp driving power supply is mostly a constant current source that can change the voltage with the change of the forward voltage drop of the LED explosion-proof certificate. There are two points to buy LED explosion-proof lamp driving power. *Important one: you must look for the brand of the capacitor. Rubycom is particularly well-known, and Hengying (hy domestic) is more common. Of course, the price is a few cents more expensive than other uncomfortable brands of capacitors. money. Two: Whether to bring an IC control chip, because the IC control chip has protection functions such as short-circuit prevention, overvoltage, overload, and over-temperature protection. As long as these two points are in place, the quality is very good. The following points should be considered when choosing the LED explosion-proof drive power supply: General principles a. According to the current and voltage characteristics of the LED explosion-proof lamp w, it is ideal to use a constant current drive. It can avoid the current fluctuation caused by the change of the forward voltage of the LED explosion-proof lamp, and at the same time, the constant current makes the brightness of the LED stable. In addition, the LED explosion-proof lamp flux is inversely proportional to the temperature, so the power supply heating is minimized during use and the design is well-designed cooling system. Thereby reducing the ambient temperature of the LED work. c. In order to ensure the overall life of the LED explosion-proof lamp, the junction temperature of the LED must be controlled within a certain range, that is, the working environment temperature of the LED explosion-proof lamp must be controlled. High-reliability products are mainly composed of LED explosion-proof lamp sight hole lamp chip and power supply, heat dissipation shell, and control circuit lamp. In fact, the quality of the LED power supply directly affects the quality of the product. Especially LED street light products, because they are installed at high altitude, maintenance is inconvenient, and the maintenance cost is also high. High-efficiency LEDs are energy-saving products, and the drive power supply must also meet the energy-saving requirements. Especially the structure where the power supply is installed in the lamp. This is particularly important because the luminous efficiency of LEDs decreases as the temperature of the LED increases. The efficiency of the power supply is high, its power consumption is small, and the heat generated in the lamp is small, which reduces the temperature rise of the lamp. It is beneficial to delay the light decay of LED. Constant current drive mode In order to match the volt-ampere characteristics of the LED, the LED power supply must use a constant current drive mode. Surge protection LED has poor impact resistance, so it is necessary to strengthen this protection, especially for some products installed outdoors, the start and stop of the grid load and lightning strikes will have an impact on the power supply. Because the input end of the LED driving power supply must have a protection circuit that suppresses surges to avoid instantaneous damage to the LED LED explosion-proof lamp. How to choose the driving power supply? How to choose drive power for LED explosion-proof lights? How to choose driving power for LED explosion-proof lights? How to choose driving power for LED explosion-proof lights? How to choose driving power for LED explosion-proof lights?
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