With a sketch explain the working of (1)Half wave rectifier(2)Full wave rectifier?
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Here's half your problem:
A quick google search and you'll find the other half, no pun intended! ;-)
A Practical diode dropes some voltage across it for activation. 0.7V for Silicon(Si) and 0.3V for Germenium(Ge).
A diode is activated in forward bias, know as activation mode.
A diode is not activated in reversed bias, known as diode is in cut off mode.
HALF WAVE RECTIFIER:(Assuming Ideal diode for simplicity i.e. it will activate instatnly and doesn't drop 0.7V across it)
A diode is connected to an ac source and to a load resistor. RL forming a half-wave rectifier.
1)Positive half wave rectifier:
When +ve cycle of input comes then diode becomes forward bias(acts as a wire) and all voltage drops across resistor. Hence we will get output wave form.
When -ve cycle of input comes then diode becomes reversed bias(acts as a high resistance) and all voltage drops across diode. Hence we will not get output wave form i.e. a straight line.
Two types of Half wave rectifiers.
2)Negative half wave rectifier:
Just reverse the diode position and all working same as above described.
It is a full wave rectifier using Center-tapped Transformer. Another full wave rectifier is also used, in which 4 diodes are connected as a bridge.
A center-tapped transformer is center-tapped(its center is grounded or earthed) and it opposites the polarity of coming cycle. For example, a positive cycle comes, center-tapped transformer sent +ve cycle in upper portion and then opposite polarity cycle(negative) in its lower portion.
FULL WAVE RECTIFIER:(Assuming Ideal diode for simplicity i.e. it will activate instantly and doesn't drop 0.7V across it)
Two diodes are connected to an AC source and to a load resistor RL forming a full-wave rectifier.
1)Positive half wave rectifier:(See figure#1 and figure#2)
When +ve cycle comes then D1 is forward bias and D2 is reversed bias. Hence just D1 is activated and we will get +ve half wave output.
When -ve cycle comes then D1 is reversed bias and D2 is forward bias. Hence just D2 is activated and we will get another +ve half wave output.
2)Negative half wave rectifier:
Just reverse the positions of both diodes and examine. Same working as described above.
Remember the working of Center-tapped Transformer.
If you have any problem then you can without hasitation asked it 1000 thousand times, I will be happy to help you out. Although its my facourite subject. :)
If you want to know full wave rectifier using diode bridge then I will also post them.