The application of NTC thermistor in the battery.Pyroelectric infrared sensor module Factory

　　NTC is the abbreviation of Negative Temperabure Coefficient, which means negative temperature coefficient, which refers to semiconductor materials or components with large temperature factor. It is based on metal oxides such as manganese, cobalt, nickel, and copper, and is made of ceramic technology. These metal oxide materials are semiconductor, because the conductivity is completely similar to semiconductor materials such as 锗, silicon and other semiconductor materials. When the temperature is low, the number of loads (electrons and holes) of these oxide materials is small, so its resistance value is high; as the temperature increases, the number of loads increases, so the resistance value is reduced. The changing range of NTC thermistor in room temperature is 10o ~ 10,0000000 ohm, and the temperature coefficient is -2%~ -6.5%.

　　So, what are the applications of NTC thermistor in the battery?

　　Inhibit wave current

　　The rechargeable battery circuit will have a great wave current at the moment of plug -in. When the switch is turned on, the exchange part will show very low impedance values. At this time, if there is no protective element in the line, its wave current can reach 10-100 times the normal working current, which can be as high as hundreds of amps. It is very dangerous, burning the meta device or burning the fuse. The current-voltage characteristics and current-time characteristics of NTC thermistor of NTC are connected to the load, which can effectively suppress the surging current. So as to protect the battery circuit.

　　Detection temperature change

　　The battery temperature will increase during the charging and discharge process, which will even cause explosion and cause major losses. The introduction of NTC thermistor to detect and control temperature can prevent accidents.

　　Execute the energy surplus power display voltage measurement temperature compensation.

　　In the circuit, components that are particularly sensitive to temperature are easily affected by temperature, which will produce zero temperature drift or sensitivity temperature drift. To obtain a good working state within a relatively wide temperature range, you need to choose one or more. The NTC thermistor is used in conjunction with it, and the negative temperature characteristics of the NTC thermistor can offset the impact of temperature on the component characteristics in the circuit. Then, then

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