Digital Fan Regulator Circuit. The article discusses a simple infrared controlled fan regulator or dimmer circuit using ordinary parts such as a 4017 ic and a 555 ic. The power supply phase line is connected with one terminal of fan and other terminal from fan is connected with regulator circuit here triac connected across the fan and neutral power line the gate terminal is connected with diac the capacitor 2a104j is an polymer capacitor which is connected with variable resistor these components are controls the voltage flow through the fan.
The max6650 can work as a fan speed controller or a fan speed regulator. The circuit of the electronic fan regulator is as shown below. The power supply phase line is connected with one terminal of fan and other terminal from fan is connected with regulator circuit here triac connected across the fan and neutral power line the gate terminal is connected with diac the capacitor 2a104j is an polymer capacitor which is connected with variable resistor these components are controls the voltage flow through the fan.
Consider the positive half cycle of the supply.
This is a low power ac semiconductor device. The max6625 can be connected to the same i c compatible bus to monitor temperature. The difference is a subtle but important one. A diac is a two terminal uncontrolled power semiconductor device which conducts current in both the directions when the voltage across the device crosses a certain threshold level called the breakdown voltage v br.
