20.2 RECTIFICATION

This section introduces the concept of rectification, the process of converting alternating current (AC) voltage into direct current (DC) voltage, which is essential for the operation of most electronic circuits.

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Key Concepts

• Rectification: The process of converting an alternating current (AC) voltage into a direct current (DC) voltage.
• Purpose: Most electronic circuits require a DC voltage to function. Since the standard power supply is AC, this conversion is a necessary step.
• Process Overview:
  1. Voltage Reduction: A step-down transformer is used to reduce the high voltage of the AC supply to a lower, more usable level.
  2. AC to DC Conversion: A rectifier circuit, which utilizes diodes, converts the stepped-down AC voltage into DC voltage.
• Key Component: The diode is the fundamental electronic component used in rectifier circuits.
• Types of Rectification: There are two primary methods for rectification:
  1. Half-wave rectification
  2. Full-wave rectification

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Summary

• Electronic circuits require DC voltage, but power is typically supplied as AC.
• Rectification is the fundamental process of converting AC to DC.
• The process usually involves a step-down transformer to lower the voltage, followed by a rectifier circuit.
• Diodes are the essential components that perform the conversion in a rectifier.
• The two main types of rectification are half-wave and full-wave.

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References

(Derived from FBISE textbook)

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