15 Questions
What does a diode clamper do to a signal?
Adds a dc voltage
What is the average voltage for a pure sinusoidal full waveform?
0.636
What does a positive limiter remove from a signal?
Positive cycle
What happens in an ordinary diode in reverse bias mode as the reverse voltage (Vr) is continuously increased?
Avalanche effect occurs
Where is the input signal applied and where is the output taken from in a common collector configuration?
Input to base, output from emitter
What is the phase relation between input and output in a common emitter amplifier?
180°
In a common collector configuration, where is the input signal applied and where is the output taken from?
Input applied to base, output taken from collector
What is the advantage of FETs over BJTs?
More thermally stable
What does a diode clamper do to a signal?
Adds a DC voltage to the signal
What is the average voltage for a pure sinusoidal full waveform?
$0.636$
What is the purpose of a diode clamper in a circuit?
To add a dc voltage to the signal
What happens as the reverse voltage (Vr) of an ordinary diode in reverse bias mode is continuously increased?
The kinetic energy of electrons becomes high enough to cause avalanche
What is the output phase relation in a common emitter amplifier?
180° out of phase
What is the main advantage of FETs over BJTs?
More thermally stable
What is the function of a positive limiter in a circuit?
To remove the negative cycle of a signal
Study Notes
Diodes and Amplifiers
- A diode clamper shifts the dc level of a signal, adding a dc component to the signal.
- The average voltage for a pure sinusoidal full waveform is zero.
Diode Characteristics
- In an ordinary diode, as the reverse voltage (Vr) is continuously increased in reverse bias mode, the reverse current remains very small until the reverse breakdown voltage is reached.
- Beyond the reverse breakdown voltage, the reverse current increases rapidly.
Amplifier Configurations
- In a common collector configuration, the input signal is applied to the base and the output is taken from the emitter.
- The phase relation between input and output in a common emitter amplifier is 0° or 360° (in phase).
- In a common collector configuration, the input signal is applied to the base and the output is taken from the emitter.
FETs vs BJTs
- The main advantage of FETs over BJTs is their low power consumption and high input impedance.
Limiters
- A positive limiter removes the part of a signal above a certain level, limiting the signal amplitude.
- The function of a positive limiter in a circuit is to limit the signal amplitude.
Diode Clamper
- A diode clamper shifts the dc level of a signal, adding a dc component to the signal.
- The purpose of a diode clamper in a circuit is to add a dc component to a signal, shifting its dc level.
Test your knowledge of electronic circuits with this quiz covering diode clampers, full wave rectifiers, common collector configurations, and more.
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