The temperature control effect of NTC thermistor in smart fans.Light-dependent resistor

　　Looking back at the development of the electric fan, it has gone through mechanical timing, mechanical shifting an electronic timing, electronic speed regulating one infrared remote control, stepless speed regulation, and simulated natural wind control function.

　　With the development of electronic control technology and sensor components, people invented the "temperature -controlled electric fan". As an old -fashioned home appliance, electric fan has the characteristics of cheap price, convenient placement, and light volume. As a member of a mature home appliance industry, electric fan, especially in small and medium -sized cities, will still occupy most of the market share in the future. While facing huge market demand, it is necessary to improve the market competitiveness of electric fans so that it has improved its technical content. To this end, on the basis of the existing market, a multi -functional electric fan has proposed a new type of smart electric fan.

　　A lot of humanized designs are added to the intelligent electric fan, such as security protection, dumping protection, intelligent lighting and other functions. Make electric fan more humane. It is believed that its rich functions and humanized design will greatly improve the market competitiveness of electric fans.

　　Smart fan can perceive the temperature of the environment through the temperature and intelligent control function to adjust the speed of the fan to achieve a better work effect.

　　Let ’s take a look at the application of NTC thermistor in smart fans:

　　The fan is controlled by heating NTC thermistor. The speed of the fan depends on the temperature of any device, such as PC. As the temperature of the equipment increases or decreases, the speed of the fan increases or decreases respectively. Therefore, it can be mainly used as a cooling device. By modifying the circuit slightly, it can also be used to control room temperature, depending on the characteristics of thermistor. The thermistor used in the circuit here decreases its resistance as the temperature increases, so the conductivity will increase and increase the voltage, resulting in an increase in fan speed. Therefore, when the temperature of the device changes, the speed of the fan can be automatically controlled.

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