Clipping circuit and clampin circuit 

1. SEMINAR-2016-2017

2. CLIPPING CIRCUITSCLIPPING CIRCUITS
TYPES OF CLIPPING CIRCUITS
There are three types of Clippers
1. Positive Clipper
2. Negative Clipper
3. Biased Clipper
CLIPPING CIRCUIT ARE THE CIRCUIT WHICH IS USED TO CHANGE THE
SHAPE OF SIGNAL IT IS DONE BY REMOVING POSITIVE OR NEGATIVE
HALF OF AC INPUT SIGNAL

3. POSITIVE CLIPPER
THE CIRCUIT WHICH CLIP OR
REMOVE THE POSITIVE HALF OF
INPUT AC SIGNAL IS CALLED
POSITIVE CLIPPER

4. CIRCUIT DETAILS & OPERATIONCIRCUIT DETAILS & OPERATION
There are two types of positive
Clippers
1. Series positive cilpper
2.Parallel positive clipper

5. DURING THE POSITIVE HALF CYCLE OF INPUT VOLTAGE,
THE DIODE IS FORWARD BIASED AND CONDUCT
HEAVILY.
THEREFORE THE VOLTAGE ACROSS THE DIODE AND
LOAD RL IS ZERO.HENCE OUTPUT VOLTAGE DURING
POSITIVE HALF CYCLE IS ZERO
DURING THE NEGATIVE HALF CYCLE OF INPUT
VOLTAGE ,THE DIODE IS REVERSE BIASED AND BEHAVE
AS AN OPEN AND HENCE WE GAIN THE OUTPUT
THROUGH LOAD RL
OPERATIONOPERATION

6. NEGATIVE CLIPPERNEGATIVE CLIPPER
THE CIRCUIT WHICH CLIPS
THE NEGATIVE HALF OF
INPUT AC CYCLE IS CALLED
AS NEGATIVE CLIPPER

7. CIRCUIT DETAILS &
OPERATION
CIRCUIT DETAILS &
OPERATION
There are two types of negative clipper.
I. Series Negative Clipper
II.Parallel Negative Clipper

8. OPERATIONOPERATION
DURING THE NEGATIVE HALF CYCLE OF INPUT
VOLTAGE, THE DIODE IS FORWARD BIASED AND
CONDUCT HEAVILY.
THEREFORE THE VOLTAGE ACROSS THE DIODE
AND LOAD RL IS ZERO.HENCE OUTPUT VOLTAGE
DURING NEGATIVE HALF CYCLE IS ZERO
DURING THE POSITIVE HALF CYCLE OF INPUT
VOLTAGE ,THE DIODE IS REVERSE BIASED AND
BEHAVE AS AN OPEN AND HENCE WE GAIN THE
OUTPUT THROUGH LOAD RL

9. BIASED CLIPPERBIASED CLIPPER
There are three types of biased clipper:
i. Positive Biased Clipper
ii. Negative Biased Clipper
iii. Combination Biased Clipper
BIASED CLIPPER REMOVE A
SMALL PORTION OF POSITIVE OR
NEGATIVE HALF CYCLE OF INPUT
AC SIGNAL

10. POSITVE BIASED CLIPPER
CIRCUIT DETAILS &
OPREATION
POSITVE BIASED CLIPPER
CIRCUIT DETAILS &
OPREATION

11. NEGATIVE BIASED CLIPPER
CIRCUIT DETAILS &
OPEARATION
NEGATIVE BIASED CLIPPER
CIRCUIT DETAILS &
OPEARATION

12. COMBINATION BIASED
CLIPPER CIRCUIT DETAILS &
OPEARATION
COMBINATION BIASED
CLIPPER CIRCUIT DETAILS &
OPEARATION

13. CLAMPING CIRCUITSCLAMPING CIRCUITS
Types of Clamping Circuits:
I. Positive Clamper
II. Negative Clamper
CLAMPER ARE THE CIRCUIT WHICH
SHIFT THE AC SIGNAL VERTICALLY
UPTO DESIRED LEVEL

14. POSITIVE CLAMPERPOSITIVE CLAMPER
THE CLAMPER WHICH PUSHES
THE SIGNAL UPWARD IS KNOWN
AS POSITIVE CLAMPER

15. CIRCUIT DETAILS &
OPEARATION
CIRCUIT DETAILS &
OPEARATION

16. OPERATIONOPERATION
DURING THE NEGATIVE HALF CYCLE THE
DIODE BECOME FORWARD BIASED SO A
CURRENT FLOW THROUGH CAPACITOR
AND CHARGES THE CAPACITOR QUICKLY
BUT DURING POSITIVE HALF CYCLE THE
DIODE BECOME REVERSE BIASED THE
CURRENT NOW FLOW THROUGH LOAD
RESISTANCE AND ALSO WITH DISCHARGE
OF CAPACITOR IN SAME DIRECTION .BOTH
VOLTAGE ADDS UP TO GIVE OUTPUT

17. NEGATIVE CLAMPERNEGATIVE CLAMPER

18. CIRCUIT DETAILS &
OPEARATION
CIRCUIT DETAILS &
OPEARATION

19. OPERATIONOPERATION
DURING THE POSITIVE HALF CYCLE THE DIODE
BECOME FORWARD BIASED SO A CURRENT FLOW
THROUGH CAPACITOR AND CHARGES THE
CAPACITOR QUICKLY
BUT DURING NEGATIVE HALF CYCLE THE DIODE
BECOME REVERSE BIASED THE CURRENT NOW
FLOW THROUGH LOAD RESISTANCE AND ALSO
WITH DISCHARGE OF CAPACITOR IN SAME
DIRECTION .BOTH VOLTAGE ADDS UP TO GIVE
OUTPUT

20. THANK
YOU