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Homework 4-2

 

 

  TERM DEFINITION

1

Oscillator

A circuit that generates a repetitive AC signal

2

Tank circuit

Formed by connecting an inductor and a capacitor in parallel

3

Positive feedback

Feeding back a part of the output signal that is in phase

4

Sinusoidal oscillator

Oscillators that produce a sine wave output

5

Crystal

Material that converts mechanical energy into electrical energy

6

Nonsinusoidal oscillators

Oscillators that do not produce a sine wave output

7

Relaxation oscillator

Oscillator that stores energy during part of the oscillation cycle

8

Multivibrator

A relaxation oscillator that has two temporary stable conditions

9

Astable multivibrator

A free running multivibrator

 

1. What are 3 types of LC Oscillators?

 

Hartley, Colpitts, and Clapp

 

2.  What are two types of RC oscillators?

 

PHase shift, and Wien-bridge

 

3.  What integrated circuit can be readily used as a nonsinusoidal oscillator with very few discrete components?

 

555 timer

 

4.  Draw a block diagram and label all parts fo a basic oscillator.