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Role of NTC Thermistor in LED Lighting System
2022/10/18 03:10:13

With the enhancement of people's awareness of environmental protection and the promotion of national environmental protection policies, LED lighting system has been widely popularized and applied in private or public places such as homes, schools, office buildings, etc. Since the junction temperature of the LED lighting system will affect the work of the LED lamp when it achieves high efficiency, diversified processing and intelligent control, the assistance of NTC thermistor is required to ensure the normal operation of the entire lighting system.

Compared with traditional lamps (such as incandescent lamp, fluorescent lamp, etc.), LED lamp is more affected by temperature. By inserting NTC thermistor as part of the temperature control system, LED lighting system can work in a specific temperature range to maximize their effectiveness. The working temperature range of conventional LED lamp is -40~125℃. When the working time is longer, the power generated is greater, and its thermal efficiency is higher. Medium and high power (above 300W) LED lamp, due to it generates more heat, the temperature control requirements are also higher. The temperature control system is the core part of the LED lighting system, which monitors and controls the temperature of the LED lamp in real time. In order to ensure the accuracy of monitoring, the temperature accuracy in the temperature range of -10~85℃ is required to be ±0.5℃, which requires NTC thermistor to have high accuracy and sensitivity.

As the "brain" of the LED temperature control system, NTC thermistor is of great significance to improve the performance and work efficiency of the LED lighting system. When the operating temperature of the lighting system is deviated, the resistance value of the NTC thermistor is also changed accordingly, and the current flowing through the LED lamp is compensated, so as to realize the temperature control of the LED lighting system, so that it can work within the specified temperature range to ensure the normal operation of the LED lamp. The CT series SMD type NTC thermistor produced by EXSENSE Electronics Technology Co., Ltd. can meet the requirements of LED lamp temperature control system, which has great heat cycle resistance and stability, the working temperature range is -50~125℃, and the accuracy can reach ±0.5%.

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