What should be paid attention to in the design of LED panel light power supply?
LED panel light is a high-end indoor lighting fixture. Its outer frame is made of aluminum alloy by anodizing. The light source is LED. beautiful feeling. So what are the key points to pay attention to in the design of LED panel light power supply, the following editor will tell you about the three key points of LED panel light power supply design.
1. Why does the LED panel light power supply have to be constant current?
The characteristics of the LED semiconductor in the LED panel light determine that it is greatly affected by the environment. For example, when the temperature increases, the current of the LED will increase; when the voltage increases, the current of the LED will also increase. Exceeding the rated current for a long time will greatly shorten the service life of the LED. The LED constant current is to ensure that its operating current remains unchanged when environmental factors such as temperature and voltage change.
2. How can the LED panel light power supply match the light board?
Some customers first design the LED panel light board, and then look for the power supply, and find that it is difficult to have a suitable power supply, either the current is too large and the voltage is too small (such as I>350mA, V<40V); or the current is too small, the voltage is too high ( Such as I<40mA, V>180V), the result is serious heat generation, low efficiency, or insufficient input voltage range. In fact, if you choose an optimal series-parallel connection method, the voltage and current applied to each LED are the same, and the effect of the power supply can exert the best performance. The best way is to communicate with the power supply manufacturer first and customize it.
3. What is the most suitable working current of the LED panel light power supply?
The rated working current of LED panel lights is generally 20 mA. Some factories use it up at the beginning and design 20 mA. In fact, the working heat is very serious under this current. After many comparison tests, it is designed to be 17-19 mA. An is ideal, and the recommended design is 18 mA.
The above is the key to the power supply design of LED panel lights. If you want to know more about LED panel lights, please call our company for free consultation.
