Brightness controller for low power lamps


Posted on Feb 6, 2014

The circuit given here can be used to control the brightness of low power incandescent lamps. The circuit is based on IC NE555 which is wired as an astable multivibrator with variable duty cycle. The output of IC is connected to the base of transistor Q1. The Q1 drives the lamp. The duty cycle of the multivibrator can be varied by varying the POT R


Brightness controller for low power lamps
Click here to download the full size of the above Circuit.

4. As a result, the brightness of the lamp varies according to the position of the POT R4. The same circuit can be also used for speed control of small DC motors.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    ESD Testing for RS232 Interface Circuits
    Fog Lamp Sensor Circuit
    Simple audio mixer circuit with fet 2n3819
    60 Watt MosFet Audio Amplifier
    Enclosure for the Magnetometer v2.0
    Automated Attendant burglar alarm circuit
    Triac lights automatically switch schematic
    Advertising lights controller circuit diagram 555



    Top