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LM358 NTC FAN CONTROLL
This circuit is designed for the 12Volt fans to work based on temperature. The BD139 N-channel transistor used in the circuit can handle a maximum current of 1.5 Amperes. This transistor needs to be mounted horizontally on the circuit board. If the fan you are going to use exceeds 1 Ampere, you need to replace it with a transistor that has the same leg structures but can handle higher current. By adjusting the trim potentiometer, you can adjust the sensitivity of the NTC, which actually sets the operating value of the fan.
The circuit works very stably thanks to the op-amp on it. You can use this circuit in all electronic devices where you want to keep the temperature under control.
LM358 NTC FAN CONTROLL
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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