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ELECTRICIAN - CITS

EXERCISE 61 : Construct Rectifier circuits

Objectives

At the end of this exercise you shall be able to
• assemble the half wave rectifier, full wave rectifier and bridge rectifier circuits
• measure the input AC voltage and output AC voltage and DC voltage by CRO
• calculate the V , V , and ripple factor
dc
rms
• plot the input and out wave shapes.
Requirements

Tools/Equipments/Instruments
• Insulated Combination pliers (150mm) -1 No. • Resistors (1kohm) - 1 Nos.
• Side cutting plier (150mm) -1 No. • capacitor (470micro farad/50 v) - 1 No.
• Electrician knife (75mm) -1 No.
• Tweezer (75mm) -1 No. • Step down transformer
• Multimeter (digital) -1 No. (230/12-0-12v/50Hz) - 1 No.
• CRO (30MHZ) -1 No. • Bread board (175x 67 x 8mm) - 1 No.
Materials/Components • Connecting wire - 1 mtr.
• Diode (IN4007) - 4 Nos.
Procedure

TASK 1 : Assemble the half wave rectifier, full wave rectifier and bridge rectifier circuits
1 Draw the circuit diagrams the half wave rectifier (Fig1a, Fig1b), full wave rectifier (Fig 2a, Fig 2b) and bridge
rectifier (Fig 3a, Fig 3b) circuits with and without filter capacitor

2 Connect the equipment and materials as per the circuit diagram
Ensure correct polarity while connecting diode
3 Connect the supply and switch ON the circuit.

Fig 1a

Fig 1b

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