DC Fan Speed ​​Regulator With Transistor

Sunday, April 22nd, 2018 - Motor Circuit

The circuit of DC fan speed ​​regulator with transistor serves to control the rotation speed of a DC fan motor are constructed using two transistors that are arranged in Darlington. The circuit of DC fan speed regulator with transistors can control the fan rotation (fan) DC from standstill to the maximum speed of the DC fan. The circuit of DC fan speed regulator with transistor is very simple, so easy to make because it uses components that are easily available in the market. The circuit of DC fan speed regulator with transistor is the data made or assembled using a small PCB, to assemble a circuit of DC fan speed regulator with transistors can see the schematics in the following figure.

The Circuit of DC Fan Speed ​​Regulator With Transistor

DC Fan Speed ​​Regulator With Transistor

The circuit of DC fan speed regulator with transistor in the picture above was built in 2 parts, the bias control transistor and motor drivers. Part of this transistor bias control serves to adjust the level of the base voltage transistor darlinton BFY51 strung with TIP31 transistor. The amount of the base bias voltage is controlled by a potentiometer 10 Kohm. The DC motor driver section serves as a conduit to the supply voltage DC motor based on the bias voltage applied to the base of the transistor drive circuit BFY51 and TIP31. 1N4148 diode in the circuit serves as a clamper to protect the transistor from the reverse voltage induction effect of a DC motor.

Application Circuit DC Fan Speed ​​Regulator With Transistor

The circuit of DC fan speed regulator with transistor can be used to adjust the rotation speed of a DC motor with a maximum current of 3 A. The voltage source to operate the circuit DC fan speed regulator with transistors can use voltage of 3V to 40V depending on the voltage DC motors work connected to the circuit DC fan speed ​​regulator with transistor.

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