Fan automatic switch circuit

Published:2011/4/28 20:09:00 Author:Christina | Keyword: Fan, automatic switch | From:SeekIC

1.Principle circuit The fan automatic switch circuit is as shown in figure 1. The voltage divider is composed of the PTC thermistor RT and RP, you can set the fan's temperature by regulating the RP. Figure 1 The fan automatic switch circuit 2.Main components The fan automatic switch circuit uses the PTC thermistor as the RT temperature sensing element, the standard resistance - temperature curve of this device is as shown in figure 2. Figure 2. the standard resistance - temperature curve This circuit can be used in wide range of applications such as the warehouse.



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