Advertisements
Advertisements
प्रश्न
Explain with a proper diagram how an ac signal can be converted into dc (pulsating) signal with output frequency as double than the input frequency using pn junction diode. Give its input and output waveforms.
उत्तर
A junction diode allows current to pass only when it is forward biased. So, if an alternating voltage is applied across a diode the current flows only in that part of the cycle when the diode is forward biased. This property is used to rectify alternating voltages and the circuit used for this purpose is called a rectifier.
Circuit Diagram
Working with input and output waveforms
APPEARS IN
संबंधित प्रश्न
Briefly explain how the output voltage/current is unidirectional.
When the diode shows saturated current, dynamic place resistance is _____________ .
Fill in the blank.
The ability of a junction diode to __________ an alternating voltage is based on the fact that it allows current to pass only when it is forward biased.
Draw the circuit diagram of a full wave rectifier.
The device which uses centre-tapped secondary of the transformer is
A 220 V A.C. supply is connected between points A and B (figure). What will be the potential difference V across the capacitor?
The output of the given circuit in figure is given below.
To reduce the ripples in a rectifier circuit with capacitor filter ______.
- RL should be increased.
- input frequency should be decreased.
- input frequency should be increased.
- capacitors with high capacitance should be used.
Assuming the ideal diode, draw the output waveform for the circuit given in figure. Explain the waveform.
With the help of a circuit diagram, explain briefly how a p-n junction diode works as a half-wave rectifier.
