Muhammad Haroon Bhutta

Electronics

BS(CS)

07

Introduction

Name:

Subject

Section

Roll No.

Topic

•Diode Unbiased Clippers

What is a clipper?

• The process of limiting a wave to some arbitrary levels is called Clipping.

• The circuit that limit the amplitude of an output is called a clipping circuit.

• This is known as CLIPPER.

General Categories of Clippers

• There are Two major Categories of Clippers.

• 1 Parallel

• 2 Series

Unbiased parallel Clipper

Unbiased parallel clipper acts as a half wave rectifier.

In this case input is a sine wave and diode is considered to be an ideal diode.

Graphical Image

Unbiased Parallel Positive Clipper

• In positive unbiased Clipper , Positive portion of sine wave clipped out and

we got only negative portion of sine wave.

Graphical Represetation

+ve half cycle

For –ve half cycle

Unbiased Parallel Negative Clipper

• In positive unbiased Clipper , negative portion of sine wave clipped out and

we got only positive portion of sine wave.

Graphical Represetation

+ve half cycle

For –ve half cycle

Unbiased Series Clipper

Unbiased series clipper acts as a half wave rectifier.

In this case input is a sine wave and diode is considered to be an ideal diode.

Graphical Image

Unbiased series Positive Clipper

• In positive unbiased Clipper , Positive portion of sine wave clipped out and

we got only negative portion of sine wave.

Graphical Represetation

+ve half cycle

For –ve half cycle

Unbiased Series Negative Clipper

• In negative series unbiased Clipper , negative portion of sine wave clipped out and

we got only positive portion of sine wave.

Graphical Represntation

+ve half cycle

For –ve half cycle