S19-Wk5: Rectifier circuit design

Working Procedure:

During +ve Half Cycle :
Forward Biased (FB): D1 & D3(On Condition)
Reversed Biased (RB): D2 & D4(Off Condition)
Output DC Voltage: Positive Half Cycle Volt

During -ve Half Cycle:
Forward Biased (FB): D2 & D4(On condition)
Reversed Biased (RB): D1 & D3(Off condition)
Output Voltage: Positive Half Cycle

Capacitor (C): Filter the output DC voltage

We first connect four rectifier diodes to make a bridge rectifier circuit.

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Then we connect a capacitor before the load to filter the output voltage.

We can give the input voltage in two ways. A step down transformer with 220/9 volt

Or 9 volt battery connected to the rectifier diode as shown.

Measure the output voltage of the capacitor by placing a multimeter at the DC point. At the output we get 15.69 DC voltage as shown in the figure.

We put a DC fan on the output and load it. The AC input voltage is converted to DC voltage through the rectifier, and the pure DC voltage from the capacitor drives the DC fan.

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Uses of Bridge Rectifier:

• Convert AC power to DC power
• DC battery charger (Mobile Charger, Laptop Charger etc)
• Powers DC lights and fans

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Note that this can be used to power many other things..., can you think of some...?

Assignment

• Task 1: Build a full wave rectifier circuit like the one we have above, outline the steps you took to build. Measure and indicate the DC output.

• Task 2: Discuss 5 additional applications of the rectifier circuit, apart from the ones we previously mentioned.

• Task 3: What were your observations while building the full wave rectifier circuit, and what precautions did you take?

Instructions :

• Please kindly read all the instructions we have on our post entitled: Reminders For Students in Electronics Academy. We would be working with those instructions STRICTLY

• The participation schedule is between Monday, August 5th, at 00:00 UTC to Sunday, - August 11th, 2024 at 23:59 UTC.

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• Post the link of your assignment in the comment section of this lesson.

• Avoid unnecessary long and irrelevant introductory

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Note to community curators:

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Please NO community curator should use the SC account to vote any assignment in the "Electronic Academy" when such post is not verified yet by any of the professors.

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Note to students:

Additional efforts will be taken into account , so try to be creative , original and show your interest in learning .

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This lesson is more of practical because we are heading to somewhere. If you have completed all the tasks, please kindly wait for the professor's comments and continue studying to be prepared for the sixth week.

Goodluck

The Electronic Eagles Team