Monday, October 12, 2015

Circuit Schematic Brightness Controller for Low Power Lamps using NE555 IC

Eltronicschool. - There are many circuit schematic designed using NE555 IC for many application. One application is for Brightness Controller for Low Power Lamps. In here we will give you specific circuit schematic using Brightness Controller for Low Power Lamps using NE555 IC like in Figure 1 below. (You also can read: Circuit Schematic 12V LDO Solar Charge Controller using MOSFET)

Circuit schematic

Component Parts
  1. NE555 IC
  2. Resistors
  3. Capacitors
  4. Transistor BD681
  5. Diodes
  6. Variable Resistors
  7. Lamp
Description

Circuit schematic like in Figure 1 above is Circuit Schematic Brightness Controller for Low Power Lamps using NE555 IC. According Circuitstoday site describe that 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 R4.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.


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