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What are the common problems of led drive power supply?

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With the widespread use of LED lamps, led driver, as an important part of lamps, has attracted people's attention. There will inevitably be problems of one kind or another in the led driver power supply, which is also the focus of led driver power supply designers. The following is a brief analysis of the common problems of led driver power supply.
Analysis of common problems of Led driver power supply:
1. The driver circuit directly affects the lifespan
2. Heat dissipation problem
3. Difficulties in led driver design
4. Authentication issues

what-are-the-common-problems-of-led-driver

1. The driver circuit is composed of electronic components such as resistors, capacitors, and inductors. The failure of any one component will cause the entire circuit or part of the circuit to fail. The service life of the LED is 50,000 to 100,000 hours. Calculated according to 50,000 hours, it is continuously lit and has a service life of nearly 6 years. However, the life of the Led driver power supply is generally 2-3 years, and the better is 5 years but the cost is higher. Generally, the failure of LED lamps is mostly caused by the failure of the led driver circuit.
2. LED is a cold light source, which is extremely sensitive to temperature. If the temperature is too high, the lifespan will be shortened. When designing lamps, not only the appearance, but also the ease of installation, light, heat dissipation and other issues must be considered, and many factors need to be balanced. The lighting factory usually designs the lighting first and then finds a suitable led driver. It is often encountered that the interior space of the lamp is small or the temperature is high, and it is difficult to find a suitable led lamp driver. When designing lamps, some lighting factories will design the led driver power supply simultaneously, which can better solve the problems of space and high temperature.
3. Circuit Design Questions:
1) Selection of components: The internal temperature of the lamp is 45-55 degrees, and the temperature of the internal power supply will rise by about 20 degrees, so the temperature of the internal components of the power supply will reach 65-75 degrees. Some components will drift in parameters at high temperature, and some will have shortened lifespan, so the device should be selected that can be used at a higher temperature for a long time.
2) PCB board design: The size of the built-in led driver is limited by the size of the interior of the LED lamp, so the PCBA design requirements are higher, and more factors need to be considered. The safety distance should be left enough. If there is not enough safety distance, other measures should be used to ensure insulation. In addition, the heat balance should be considered, and the heating elements are evenly distributed to avoid local heat dissipation.
3) At present, the certification standards for led power driver are based on foreign certification requirements, such as CE, UL, SAA and other certifications. It is very difficult to design to meet the above standards at the same time, we can only meet different certifications for different requirements.For example, our model HZD060ADI Dali2 dimmable led driver has passed CE certification.

dali2-dimmable-led-driver-has-passed-ce-certification

If you want to know more about led driver, please contact us--Hi-zealed, we have experienced engineers to answer your questions.

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What are the common problems of led drive power supply?

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