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7 - Clipper

The document discusses different types of clipper circuits including series and parallel clippers that use diodes to clip portions of input signals. Series clippers can be positive or negative, and series clippers with bias can use multiple voltage sources including AC and DC inputs.

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bhuyanamartya2001
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12 views11 pages

7 - Clipper

The document discusses different types of clipper circuits including series and parallel clippers that use diodes to clip portions of input signals. Series clippers can be positive or negative, and series clippers with bias can use multiple voltage sources including AC and DC inputs.

Uploaded by

bhuyanamartya2001
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Clipper circuits

Clippers are circuits that employ diode to clip away a portion of the input signal without
distorting the remaining part of the signal or waveform.
There are two general categories of clippers:
1. Series Clipper (the diode is in series with the output load)
2. Parallel Clipper (the diode is in parallel with the output load)
Again the above clippers are divided into +ve clipper and –ve clipper.
Series clipper
• +ve clipper

• -ve clipper
Series clipper with bias
Here more than one voltage source is applied to the circuit, one ac another dc. The
condition of diode will be decided by considering both the sources.
Example:
Example:
Series clipper with bias
Another way is to follow the given steps
1. Determine the applied voltage (transition voltage) that will result a change of state for
the diode from ‘off’ to the ‘on’ state .
2. The transition voltage in the input ac voltage can be found out from the circuit with
(a)𝑉𝐷 = 0𝑣 and 𝐼𝐷 = 0𝑚𝐴 for idle diode.
(b)𝑉𝐷 = 0.7𝑣 and 𝐼𝐷 = 0𝑚𝐴 for Si diode.
3. Draw a horizontal line in the input waveform at the transition voltage.

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