The application of NTC thermistors.Human Body Temperature Monitoring Sensor manufacturer

　　The application of NTC thermistors in fast charging mobile power supplies has become the most concerning issue with the widespread use of smartphones, and fast charging mobile power supplies have also emerged. We all know that mobile power is mainly a device that provides additional battery life for smartphones. The biggest difference between fast charging mobile power and ordinary mobile power is that it quickly charges the phone/iPad, meeting people's fast-paced needs at full speed. Fast charging is about winning in terms of speed.

　　The standard for judging whether a mobile power supply is fast charging is whether it can fully charge at least 20000 milliamperes of electricity within one hour. People prefer mobile power supplies with digital display function, which can visually and real-time see the amount of mobile power used.

　　The fast charging mobile power supply with digital display function is composed of a shell, a circuit board installed inside the shell, and a lithium battery. The internal structure is shown in the following figure.

　　The MCU controller calculates the charging and discharging capacity through the charging and discharging circuit and compares it with the preset capacity of the program. The converted results are transmitted in percentage form to the driver circuit, and finally, the LED screen can visually monitor the usage of mobile power supply through digital display.

　　From the internal structure of the fast charging mobile power supply, we can see that the NTC thermistor is connected to the MCU controller, and its functions include the following aspects:

　　Detect temperature changes during battery charging.

　　Detect the ambient temperature and allow fast charging.

　　Detected abnormal current causing battery heating.

　　Perform voltage measurement and temperature compensation for remaining energy consumption display.

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