Laboratory Experiment

1.    Implement the design in prelab exercis (2) on the digital experimenter kit.

2.    Observe the output of the 555 timer on the oscilloscope if there is one available in the lab.

3.    Or else, connect the output of the 555 timer to on LED.

4.    With C=47uF and RA=3.3kohm connect a 1Mohm potentiometer as RB.

5.    Adjust the potentiometer to see the duration of the output square wave.

6.    Explain what happen to t1, t2 and the duty cycle as you change the values on the potentiometer.

7.    record all your observation in the log book. (Sketch the waveform that you observe on the oscilloscope).
 
 

OBJECTIVE | DISCUSSION | DIAGRAM | PRELAB | PROCEDURE | RESULTS