MODULE 4: Diode Applications: Clippers, Clampers and Voltage Multipliers Flashcards
They are diode ________ circuits that are
used to select the part of an arbitrary waveform
which lies above or below some reference level.
waveshaping
Clippers or limiters
The output of clipping circuits appears as if a
portion of the input signal was ______.
clipped off
clippers are also called as _____ or _____
_______ or ______
voltage or current amplitude selectors
slicers
clippers prevents the ______ from exceeding
the certain level and at the same time it does not
_____ the remaining part of the waveform
output waveform
distort
clippers are used in ______ ______ circuit to
prevent the circuits from _______ spikes.
overvoltage protection
high voltage
The output (load) is in series with the diode.
series clippers
The output is taken in parallel with the diode.
parallel clippers
The level to which an ac voltage is limited can be
adjusted by adding a bias voltage in series with
the diode.
biased clippers
If the diode is in series with the applied voltage,
cutting line is ____.
zero
If the diode is in parallel with the applied voltage,
cutting line is the ____ _____
bias voltage
If the diode is pointing to the right or upward, all
waveforms ____ cutting line remains.
above
If the diode is pointing to the left or downward, all
waveforms _____ cutting line remains
below
clamping circuits are used to “clamp” the
waveform to a _____________.
different DC level
what are the minimum three element requirements of a clamping circuit
diode, capacitor, resistor
The ______ present in the clamping circuit
changes the dc level of the input signal.
capacitor
what are the two parameters related to a capacitor
charging and discharging time
The capacitor will store energy depending on the
polarity of the input signal.
Charging Time
formula of time constant
τ = RC
A capacitor will fully discharge in ___ time constants.
__τ
five
in a clamping circuit, Start the analysis by considering the part of the
input signal that will ______ the diode.
forward bias
Keep in mind the general rule that the total swing
of the ____ must match the swing of the ____
signal.
output
input
use clamping action to
increase peak rectified voltages without the
necessity of increasing the transformer’s
voltage rating.
Voltage multipliers
voltage multipliers are used in _____, _______ such as cathode-ray tube (CRTs)
and particle accelerators.
high-voltage
low-current
applications
A _________ is a voltage multiplier with a
multiplication factor of two.
voltage doubler
