LESSON 2

APPLICATIONS OF RC AND RL CIRCUITS

SCOPE..............................

Response of RC and RL

circuits to nonsinusoidal

waveforms; function of RC and

RL

filter

circuits;

applications of RC and RL

differentiating

and

integrating circuits.

TEXT ASSIGNMENT....................

Pages 33 through 91

MATERIALS REQUIRED.................

None

LESSON OBJECTIVES

When you have completed this lesson, you will be able to:

a. Use time constants to determine the outputs, at any specified

time, of various RC and RL circuits.

b. Analyze the input and output waveforms of RC and RL circuits

to determine the type of filtering action taking place.

c. Distinguish between differentiating and integrating circuits.

d. Select the component across which the differentiated and

integrated waveforms appear when given the circuit time constant.

1.

WAVEFORMS.

a. Types. A waveform can be described as any rise or fall of

voltage or current over a finite period of time. Waveforms that do

not follow the conventional pattern of the sine wave are called

nonsinusoidal waveforms. Various nonsinusoidal waveforms are

produced in electronic circuits.

(1) Aperiodic. A nonsinusoidal waveform that appears at

irregular intervals.

(2) Periodic. A periodic waveform is any waveform that is

repeated at constant intervals. Unless specifically referred to as

aperiodic, all waveforms discussed will be periodic waveforms.

**33**