POWER SUPPLY CIRCUITS - Practice Mode
1) Which component filter the ripples in the rectifier circuit?
Explanation:
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4) When does the zener diode begins to conduct in the reverse biased condition?
5) What is the output pulse frequency of the full wave rectifier with input frequency of 50 Hz?
Explanation:
A full-wave rectifier is an electronic circuit that converts alternating current (AC) to direct current (DC) by utilizing two diodes that allow current to flow in one direction only. The output pulse frequency of a full-wave rectifier depends on the input frequency and the type of full-wave rectifier being used.
A full-wave rectifier circuit can be of two types, the center-tapped full-wave rectifier and the bridge rectifier.
In case of center-tapped full-wave rectifier, which utilizes two diodes that are connected to opposite ends of a center-tapped transformer secondary winding, the output pulse frequency is the same as the input frequency, which is 50Hz.
In case of bridge rectifier, it uses four diodes arranged in a bridge configuration, the output pulse frequency is double the input frequency. The bridge rectifier does not require a center-tapped transformer, it rectifies the entire input wave to produce pulses of current, therefore the output frequency will be double the input frequency, which will be 100Hz.